/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-ap_file-66.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-21 02:03:05,249 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-21 02:03:05,309 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 02:03:05,314 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-21 02:03:05,315 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-21 02:03:05,336 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-21 02:03:05,337 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-21 02:03:05,337 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-21 02:03:05,337 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-21 02:03:05,338 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-21 02:03:05,338 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-21 02:03:05,338 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-21 02:03:05,338 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-21 02:03:05,339 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-21 02:03:05,339 INFO L153 SettingsManager]: * Use SBE=true [2023-12-21 02:03:05,339 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-21 02:03:05,339 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-21 02:03:05,340 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-21 02:03:05,340 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-21 02:03:05,340 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-21 02:03:05,340 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-21 02:03:05,344 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-21 02:03:05,344 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-21 02:03:05,344 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-21 02:03:05,347 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-21 02:03:05,347 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-21 02:03:05,347 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-21 02:03:05,347 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-21 02:03:05,348 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-21 02:03:05,348 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-21 02:03:05,348 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-21 02:03:05,349 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-21 02:03:05,349 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 02:03:05,349 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-21 02:03:05,349 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-21 02:03:05,349 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-21 02:03:05,349 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-21 02:03:05,349 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-21 02:03:05,349 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-21 02:03:05,349 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-21 02:03:05,350 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-21 02:03:05,350 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-21 02:03:05,350 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-21 02:03:05,350 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-21 02:03:05,533 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-21 02:03:05,548 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-21 02:03:05,550 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-21 02:03:05,550 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-21 02:03:05,551 INFO L274 PluginConnector]: CDTParser initialized [2023-12-21 02:03:05,551 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-66.i [2023-12-21 02:03:06,665 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-21 02:03:06,856 INFO L384 CDTParser]: Found 1 translation units. [2023-12-21 02:03:06,856 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-66.i [2023-12-21 02:03:06,864 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/789630c60/791cc68b47d54765ba6d8ae197f01d84/FLAG134623657 [2023-12-21 02:03:06,874 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/789630c60/791cc68b47d54765ba6d8ae197f01d84 [2023-12-21 02:03:06,876 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-21 02:03:06,877 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-21 02:03:06,878 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-21 02:03:06,878 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-21 02:03:06,891 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-21 02:03:06,891 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 02:03:06" (1/1) ... [2023-12-21 02:03:06,892 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43ff453 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:03:06, skipping insertion in model container [2023-12-21 02:03:06,892 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 02:03:06" (1/1) ... [2023-12-21 02:03:06,913 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-21 02:03:07,006 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-ap_file-66.i[917,930] [2023-12-21 02:03:07,058 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 02:03:07,072 INFO L202 MainTranslator]: Completed pre-run [2023-12-21 02:03:07,082 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-ap_file-66.i[917,930] [2023-12-21 02:03:07,121 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 02:03:07,133 INFO L206 MainTranslator]: Completed translation [2023-12-21 02:03:07,133 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:03:07 WrapperNode [2023-12-21 02:03:07,133 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-21 02:03:07,134 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-21 02:03:07,134 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-21 02:03:07,134 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-21 02:03:07,138 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:03:07" (1/1) ... [2023-12-21 02:03:07,148 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:03:07" (1/1) ... [2023-12-21 02:03:07,179 INFO L138 Inliner]: procedures = 26, calls = 153, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 446 [2023-12-21 02:03:07,179 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-21 02:03:07,180 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-21 02:03:07,180 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-21 02:03:07,180 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-21 02:03:07,194 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:03:07" (1/1) ... [2023-12-21 02:03:07,194 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:03:07" (1/1) ... [2023-12-21 02:03:07,200 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:03:07" (1/1) ... [2023-12-21 02:03:07,234 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 02:03:07,234 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:03:07" (1/1) ... [2023-12-21 02:03:07,235 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:03:07" (1/1) ... [2023-12-21 02:03:07,253 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:03:07" (1/1) ... [2023-12-21 02:03:07,256 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:03:07" (1/1) ... [2023-12-21 02:03:07,258 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:03:07" (1/1) ... [2023-12-21 02:03:07,259 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:03:07" (1/1) ... [2023-12-21 02:03:07,278 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-21 02:03:07,278 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-21 02:03:07,279 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-21 02:03:07,279 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-21 02:03:07,279 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:03:07" (1/1) ... [2023-12-21 02:03:07,283 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 02:03:07,292 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:03:07,313 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 02:03:07,333 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 02:03:07,340 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-21 02:03:07,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-12-21 02:03:07,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-12-21 02:03:07,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-12-21 02:03:07,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-12-21 02:03:07,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-12-21 02:03:07,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-12-21 02:03:07,342 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-12-21 02:03:07,343 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-12-21 02:03:07,343 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-12-21 02:03:07,343 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-12-21 02:03:07,343 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-12-21 02:03:07,343 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-12-21 02:03:07,343 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-21 02:03:07,344 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-21 02:03:07,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-21 02:03:07,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-21 02:03:07,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-12-21 02:03:07,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-12-21 02:03:07,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-12-21 02:03:07,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-12-21 02:03:07,344 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-21 02:03:07,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-21 02:03:07,468 INFO L241 CfgBuilder]: Building ICFG [2023-12-21 02:03:07,471 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-21 02:03:07,920 INFO L282 CfgBuilder]: Performing block encoding [2023-12-21 02:03:07,946 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-21 02:03:07,946 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-21 02:03:07,947 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 02:03:07 BoogieIcfgContainer [2023-12-21 02:03:07,947 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-21 02:03:07,951 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-21 02:03:07,952 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-21 02:03:07,954 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-21 02:03:07,954 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 02:03:06" (1/3) ... [2023-12-21 02:03:07,954 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@148b7062 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 02:03:07, skipping insertion in model container [2023-12-21 02:03:07,954 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:03:07" (2/3) ... [2023-12-21 02:03:07,954 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@148b7062 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 02:03:07, skipping insertion in model container [2023-12-21 02:03:07,955 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 02:03:07" (3/3) ... [2023-12-21 02:03:07,955 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-ap_file-66.i [2023-12-21 02:03:07,967 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-21 02:03:07,967 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-21 02:03:08,007 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-21 02:03:08,012 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;@7b803328, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-21 02:03:08,012 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-21 02:03:08,015 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 02:03:08,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-21 02:03:08,030 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:03:08,031 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 02:03:08,031 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:03:08,035 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:03:08,035 INFO L85 PathProgramCache]: Analyzing trace with hash 1512914370, now seen corresponding path program 1 times [2023-12-21 02:03:08,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:03:08,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991718029] [2023-12-21 02:03:08,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:03:08,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:03:08,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:08,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:03:08,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:08,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:03:08,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:08,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:03:08,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:08,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:03:08,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:08,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:03:08,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:08,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:03:08,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:08,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:03:08,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:08,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:03:08,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:08,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:03:08,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:08,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:03:08,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:08,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:03:08,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:08,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:03:08,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:08,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:03:08,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:08,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:03:08,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:08,330 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 02:03:08,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:03:08,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991718029] [2023-12-21 02:03:08,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991718029] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:03:08,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:03:08,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-21 02:03:08,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686582107] [2023-12-21 02:03:08,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:03:08,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-21 02:03:08,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:03:08,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-21 02:03:08,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-21 02:03:08,361 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 02:03:08,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:03:08,386 INFO L93 Difference]: Finished difference Result 155 states and 248 transitions. [2023-12-21 02:03:08,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-21 02:03:08,388 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 02:03:08,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:03:08,393 INFO L225 Difference]: With dead ends: 155 [2023-12-21 02:03:08,393 INFO L226 Difference]: Without dead ends: 77 [2023-12-21 02:03:08,395 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 02:03:08,397 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 02:03:08,397 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 02:03:08,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2023-12-21 02:03:08,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2023-12-21 02:03:08,423 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 02:03:08,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 113 transitions. [2023-12-21 02:03:08,429 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 113 transitions. Word has length 104 [2023-12-21 02:03:08,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:03:08,429 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 113 transitions. [2023-12-21 02:03:08,429 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 02:03:08,430 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 113 transitions. [2023-12-21 02:03:08,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-21 02:03:08,436 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:03:08,436 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 02:03:08,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-21 02:03:08,436 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:03:08,437 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:03:08,437 INFO L85 PathProgramCache]: Analyzing trace with hash 2134161318, now seen corresponding path program 1 times [2023-12-21 02:03:08,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:03:08,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620273064] [2023-12-21 02:03:08,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:03:08,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:03:08,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:08,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:03:08,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:08,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:03:08,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:08,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:03:08,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:08,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:03:08,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:08,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:03:08,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:08,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:03:08,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:08,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:03:08,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:08,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:03:08,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:08,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:03:08,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:08,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:03:08,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:08,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:03:08,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:08,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:03:08,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:08,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:03:08,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:08,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:03:08,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:08,701 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 02:03:08,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:03:08,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620273064] [2023-12-21 02:03:08,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620273064] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:03:08,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:03:08,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 02:03:08,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391673794] [2023-12-21 02:03:08,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:03:08,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 02:03:08,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:03:08,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 02:03:08,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 02:03:08,709 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 02:03:08,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:03:08,772 INFO L93 Difference]: Finished difference Result 161 states and 236 transitions. [2023-12-21 02:03:08,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 02:03:08,774 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 02:03:08,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:03:08,776 INFO L225 Difference]: With dead ends: 161 [2023-12-21 02:03:08,776 INFO L226 Difference]: Without dead ends: 85 [2023-12-21 02:03:08,776 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 02:03:08,777 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 02:03:08,777 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 02:03:08,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2023-12-21 02:03:08,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 79. [2023-12-21 02:03:08,783 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 02:03:08,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 115 transitions. [2023-12-21 02:03:08,784 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 115 transitions. Word has length 104 [2023-12-21 02:03:08,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:03:08,785 INFO L495 AbstractCegarLoop]: Abstraction has 79 states and 115 transitions. [2023-12-21 02:03:08,785 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 02:03:08,786 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 115 transitions. [2023-12-21 02:03:08,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-21 02:03:08,786 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:03:08,787 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 02:03:08,787 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-21 02:03:08,787 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:03:08,787 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:03:08,787 INFO L85 PathProgramCache]: Analyzing trace with hash -2103547676, now seen corresponding path program 1 times [2023-12-21 02:03:08,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:03:08,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608872086] [2023-12-21 02:03:08,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:03:08,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:03:08,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:08,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:03:08,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:08,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:03:08,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:08,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:03:08,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:08,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:03:08,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:08,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:03:08,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:08,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:03:08,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:08,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:03:08,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:08,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:03:08,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:08,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:03:09,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:09,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:03:09,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:09,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:03:09,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:09,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:03:09,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:09,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:03:09,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:09,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:03:09,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:09,017 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 02:03:09,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:03:09,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608872086] [2023-12-21 02:03:09,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608872086] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:03:09,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:03:09,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 02:03:09,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73259757] [2023-12-21 02:03:09,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:03:09,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 02:03:09,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:03:09,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 02:03:09,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 02:03:09,022 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 02:03:09,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:03:09,065 INFO L93 Difference]: Finished difference Result 161 states and 234 transitions. [2023-12-21 02:03:09,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 02:03:09,065 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 02:03:09,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:03:09,070 INFO L225 Difference]: With dead ends: 161 [2023-12-21 02:03:09,070 INFO L226 Difference]: Without dead ends: 83 [2023-12-21 02:03:09,074 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 02:03:09,076 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 02:03:09,076 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 02:03:09,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2023-12-21 02:03:09,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 81. [2023-12-21 02:03:09,096 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 02:03:09,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 117 transitions. [2023-12-21 02:03:09,097 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 117 transitions. Word has length 104 [2023-12-21 02:03:09,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:03:09,097 INFO L495 AbstractCegarLoop]: Abstraction has 81 states and 117 transitions. [2023-12-21 02:03:09,097 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 02:03:09,097 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 117 transitions. [2023-12-21 02:03:09,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-21 02:03:09,098 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:03:09,098 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 02:03:09,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-21 02:03:09,099 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:03:09,099 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:03:09,099 INFO L85 PathProgramCache]: Analyzing trace with hash -2103488094, now seen corresponding path program 1 times [2023-12-21 02:03:09,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:03:09,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459785429] [2023-12-21 02:03:09,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:03:09,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:03:09,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:10,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:03:10,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:10,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:03:10,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:10,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:03:10,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:10,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:03:10,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:10,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:03:10,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:10,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:03:10,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:10,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:03:10,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:10,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:03:10,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:10,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:03:10,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:10,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:03:10,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:10,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:03:10,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:10,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:03:10,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:10,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:03:10,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:10,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:03:10,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:10,905 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 02:03:10,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:03:10,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459785429] [2023-12-21 02:03:10,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459785429] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:03:10,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:03:10,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-12-21 02:03:10,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025341596] [2023-12-21 02:03:10,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:03:10,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-21 02:03:10,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:03:10,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-21 02:03:10,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2023-12-21 02:03:10,907 INFO L87 Difference]: Start difference. First operand 81 states and 117 transitions. Second operand has 14 states, 13 states have (on average 2.8461538461538463) internal successors, (37), 13 states have internal predecessors, (37), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-21 02:03:12,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:03:12,959 INFO L93 Difference]: Finished difference Result 437 states and 623 transitions. [2023-12-21 02:03:12,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-21 02:03:12,959 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.8461538461538463) internal successors, (37), 13 states have internal predecessors, (37), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 104 [2023-12-21 02:03:12,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:03:12,961 INFO L225 Difference]: With dead ends: 437 [2023-12-21 02:03:12,961 INFO L226 Difference]: Without dead ends: 357 [2023-12-21 02:03:12,962 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=209, Invalid=721, Unknown=0, NotChecked=0, Total=930 [2023-12-21 02:03:12,963 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 626 mSDsluCounter, 754 mSDsCounter, 0 mSdLazyCounter, 873 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 626 SdHoareTripleChecker+Valid, 837 SdHoareTripleChecker+Invalid, 942 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 873 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-21 02:03:12,963 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [626 Valid, 837 Invalid, 942 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 873 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-21 02:03:12,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2023-12-21 02:03:12,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 169. [2023-12-21 02:03:12,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 135 states have (on average 1.3555555555555556) internal successors, (183), 136 states have internal predecessors, (183), 30 states have call successors, (30), 3 states have call predecessors, (30), 3 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-21 02:03:12,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 243 transitions. [2023-12-21 02:03:12,982 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 243 transitions. Word has length 104 [2023-12-21 02:03:12,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:03:12,982 INFO L495 AbstractCegarLoop]: Abstraction has 169 states and 243 transitions. [2023-12-21 02:03:12,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.8461538461538463) internal successors, (37), 13 states have internal predecessors, (37), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-21 02:03:12,982 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 243 transitions. [2023-12-21 02:03:12,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-21 02:03:12,984 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:03:12,984 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 02:03:12,984 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-21 02:03:12,984 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:03:12,984 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:03:12,985 INFO L85 PathProgramCache]: Analyzing trace with hash -1845322656, now seen corresponding path program 1 times [2023-12-21 02:03:12,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:03:12,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910333261] [2023-12-21 02:03:12,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:03:12,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:03:13,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:13,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:03:13,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:13,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:03:13,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:13,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:03:13,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:13,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:03:13,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:13,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:03:13,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:13,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:03:13,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:13,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:03:13,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:13,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:03:13,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:13,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:03:13,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:13,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:03:13,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:13,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:03:13,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:13,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:03:13,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:13,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:03:13,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:13,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:03:13,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:13,401 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 02:03:13,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:03:13,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910333261] [2023-12-21 02:03:13,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910333261] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:03:13,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:03:13,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 02:03:13,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644921466] [2023-12-21 02:03:13,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:03:13,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 02:03:13,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:03:13,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 02:03:13,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-21 02:03:13,404 INFO L87 Difference]: Start difference. First operand 169 states and 243 transitions. Second operand has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 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 02:03:13,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:03:13,778 INFO L93 Difference]: Finished difference Result 430 states and 612 transitions. [2023-12-21 02:03:13,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-21 02:03:13,778 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 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 02:03:13,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:03:13,781 INFO L225 Difference]: With dead ends: 430 [2023-12-21 02:03:13,781 INFO L226 Difference]: Without dead ends: 312 [2023-12-21 02:03:13,781 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2023-12-21 02:03:13,782 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 288 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 288 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 02:03:13,782 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [288 Valid, 355 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 02:03:13,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2023-12-21 02:03:13,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 179. [2023-12-21 02:03:13,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 144 states have (on average 1.3472222222222223) internal successors, (194), 145 states have internal predecessors, (194), 30 states have call successors, (30), 4 states have call predecessors, (30), 4 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-21 02:03:13,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 254 transitions. [2023-12-21 02:03:13,806 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 254 transitions. Word has length 104 [2023-12-21 02:03:13,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:03:13,807 INFO L495 AbstractCegarLoop]: Abstraction has 179 states and 254 transitions. [2023-12-21 02:03:13,807 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 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 02:03:13,807 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 254 transitions. [2023-12-21 02:03:13,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-21 02:03:13,809 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:03:13,809 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 02:03:13,809 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-21 02:03:13,809 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:03:13,810 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:03:13,810 INFO L85 PathProgramCache]: Analyzing trace with hash 1170410848, now seen corresponding path program 1 times [2023-12-21 02:03:13,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:03:13,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478499629] [2023-12-21 02:03:13,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:03:13,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:03:13,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:14,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:03:14,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:14,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:03:14,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:14,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:03:14,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:14,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:03:14,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:14,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:03:14,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:14,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:03:14,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:14,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:03:14,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:14,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:03:14,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:14,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:03:14,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:14,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:03:14,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:14,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:03:14,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:14,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:03:14,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:14,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:03:14,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:14,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:03:14,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:14,565 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 02:03:14,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:03:14,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478499629] [2023-12-21 02:03:14,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478499629] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:03:14,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:03:14,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-21 02:03:14,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135683368] [2023-12-21 02:03:14,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:03:14,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-21 02:03:14,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:03:14,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-21 02:03:14,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-12-21 02:03:14,567 INFO L87 Difference]: Start difference. First operand 179 states and 254 transitions. Second operand has 10 states, 9 states have (on average 4.111111111111111) internal successors, (37), 10 states have internal predecessors, (37), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2023-12-21 02:03:14,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:03:14,985 INFO L93 Difference]: Finished difference Result 348 states and 490 transitions. [2023-12-21 02:03:14,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 02:03:14,985 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.111111111111111) internal successors, (37), 10 states have internal predecessors, (37), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 104 [2023-12-21 02:03:14,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:03:14,986 INFO L225 Difference]: With dead ends: 348 [2023-12-21 02:03:14,987 INFO L226 Difference]: Without dead ends: 224 [2023-12-21 02:03:14,987 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2023-12-21 02:03:14,988 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 269 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 338 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 02:03:14,989 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [269 Valid, 338 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 347 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 02:03:14,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2023-12-21 02:03:15,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 139. [2023-12-21 02:03:15,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 106 states have (on average 1.2924528301886793) internal successors, (137), 106 states have internal predecessors, (137), 28 states have call successors, (28), 4 states have call predecessors, (28), 4 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2023-12-21 02:03:15,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 193 transitions. [2023-12-21 02:03:15,021 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 193 transitions. Word has length 104 [2023-12-21 02:03:15,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:03:15,021 INFO L495 AbstractCegarLoop]: Abstraction has 139 states and 193 transitions. [2023-12-21 02:03:15,021 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.111111111111111) internal successors, (37), 10 states have internal predecessors, (37), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2023-12-21 02:03:15,022 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 193 transitions. [2023-12-21 02:03:15,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-21 02:03:15,022 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:03:15,022 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 02:03:15,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-21 02:03:15,023 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:03:15,023 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:03:15,023 INFO L85 PathProgramCache]: Analyzing trace with hash 1428576286, now seen corresponding path program 1 times [2023-12-21 02:03:15,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:03:15,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040610947] [2023-12-21 02:03:15,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:03:15,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:03:15,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:15,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:03:15,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:15,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:03:15,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:15,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:03:15,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:15,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:03:15,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:15,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:03:15,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:15,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:03:15,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:15,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:03:15,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:15,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:03:15,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:15,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:03:15,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:15,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:03:15,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:15,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:03:15,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:15,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:03:15,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:15,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:03:15,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:15,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:03:15,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:15,928 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 02:03:15,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:03:15,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040610947] [2023-12-21 02:03:15,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2040610947] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:03:15,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:03:15,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-21 02:03:15,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724418758] [2023-12-21 02:03:15,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:03:15,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-21 02:03:15,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:03:15,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-21 02:03:15,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-12-21 02:03:15,930 INFO L87 Difference]: Start difference. First operand 139 states and 193 transitions. Second operand has 11 states, 9 states have (on average 4.111111111111111) internal successors, (37), 10 states have internal predecessors, (37), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2023-12-21 02:03:16,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:03:16,422 INFO L93 Difference]: Finished difference Result 290 states and 402 transitions. [2023-12-21 02:03:16,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-21 02:03:16,422 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 4.111111111111111) internal successors, (37), 10 states have internal predecessors, (37), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 104 [2023-12-21 02:03:16,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:03:16,423 INFO L225 Difference]: With dead ends: 290 [2023-12-21 02:03:16,423 INFO L226 Difference]: Without dead ends: 200 [2023-12-21 02:03:16,424 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-21 02:03:16,424 INFO L413 NwaCegarLoop]: 163 mSDtfsCounter, 266 mSDsluCounter, 669 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 832 SdHoareTripleChecker+Invalid, 414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 02:03:16,424 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [267 Valid, 832 Invalid, 414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 375 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 02:03:16,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2023-12-21 02:03:16,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 197. [2023-12-21 02:03:16,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 152 states have (on average 1.2894736842105263) internal successors, (196), 153 states have internal predecessors, (196), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2023-12-21 02:03:16,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 272 transitions. [2023-12-21 02:03:16,452 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 272 transitions. Word has length 104 [2023-12-21 02:03:16,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:03:16,453 INFO L495 AbstractCegarLoop]: Abstraction has 197 states and 272 transitions. [2023-12-21 02:03:16,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 4.111111111111111) internal successors, (37), 10 states have internal predecessors, (37), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2023-12-21 02:03:16,453 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 272 transitions. [2023-12-21 02:03:16,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-12-21 02:03:16,453 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:03:16,454 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] [2023-12-21 02:03:16,454 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-21 02:03:16,454 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:03:16,454 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:03:16,454 INFO L85 PathProgramCache]: Analyzing trace with hash 2141308633, now seen corresponding path program 1 times [2023-12-21 02:03:16,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:03:16,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953792853] [2023-12-21 02:03:16,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:03:16,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:03:16,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:18,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:03:18,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:18,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:03:18,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:18,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:03:18,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:18,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:03:18,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:18,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:03:18,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:18,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:03:18,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:18,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:03:18,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:18,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:03:18,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:18,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:03:18,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:18,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:03:18,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:18,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:03:18,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:18,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:03:18,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:18,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:03:18,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:18,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:03:18,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:18,207 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 02:03:18,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:03:18,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953792853] [2023-12-21 02:03:18,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953792853] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:03:18,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:03:18,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2023-12-21 02:03:18,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797318606] [2023-12-21 02:03:18,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:03:18,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-12-21 02:03:18,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:03:18,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-12-21 02:03:18,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=203, Unknown=0, NotChecked=0, Total=272 [2023-12-21 02:03:18,209 INFO L87 Difference]: Start difference. First operand 197 states and 272 transitions. Second operand has 17 states, 14 states have (on average 2.7142857142857144) internal successors, (38), 16 states have internal predecessors, (38), 7 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 7 states have call successors, (14) [2023-12-21 02:03:19,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:03:19,114 INFO L93 Difference]: Finished difference Result 347 states and 479 transitions. [2023-12-21 02:03:19,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-21 02:03:19,114 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 14 states have (on average 2.7142857142857144) internal successors, (38), 16 states have internal predecessors, (38), 7 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 7 states have call successors, (14) Word has length 105 [2023-12-21 02:03:19,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:03:19,115 INFO L225 Difference]: With dead ends: 347 [2023-12-21 02:03:19,115 INFO L226 Difference]: Without dead ends: 199 [2023-12-21 02:03:19,116 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=152, Invalid=400, Unknown=0, NotChecked=0, Total=552 [2023-12-21 02:03:19,116 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 494 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 634 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 495 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 675 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 634 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-21 02:03:19,116 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [495 Valid, 419 Invalid, 675 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 634 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-21 02:03:19,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2023-12-21 02:03:19,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 149. [2023-12-21 02:03:19,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 120 states have (on average 1.3166666666666667) internal successors, (158), 121 states have internal predecessors, (158), 24 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2023-12-21 02:03:19,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 206 transitions. [2023-12-21 02:03:19,166 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 206 transitions. Word has length 105 [2023-12-21 02:03:19,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:03:19,167 INFO L495 AbstractCegarLoop]: Abstraction has 149 states and 206 transitions. [2023-12-21 02:03:19,167 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 14 states have (on average 2.7142857142857144) internal successors, (38), 16 states have internal predecessors, (38), 7 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 7 states have call successors, (14) [2023-12-21 02:03:19,167 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 206 transitions. [2023-12-21 02:03:19,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-12-21 02:03:19,167 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:03:19,168 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] [2023-12-21 02:03:19,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-21 02:03:19,168 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:03:19,168 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:03:19,168 INFO L85 PathProgramCache]: Analyzing trace with hash -1594273804, now seen corresponding path program 1 times [2023-12-21 02:03:19,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:03:19,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589350681] [2023-12-21 02:03:19,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:03:19,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:03:19,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:19,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:03:19,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:19,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:03:19,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:19,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:03:19,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:19,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:03:19,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:19,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:03:19,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:19,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:03:19,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:19,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:03:19,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:19,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:03:19,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:19,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:03:19,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:19,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:03:19,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:19,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:03:19,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:19,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:03:19,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:19,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:03:19,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:19,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:03:19,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:19,243 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 02:03:19,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:03:19,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589350681] [2023-12-21 02:03:19,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589350681] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:03:19,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:03:19,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 02:03:19,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481429495] [2023-12-21 02:03:19,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:03:19,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 02:03:19,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:03:19,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 02:03:19,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 02:03:19,245 INFO L87 Difference]: Start difference. First operand 149 states and 206 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 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 02:03:19,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:03:19,285 INFO L93 Difference]: Finished difference Result 333 states and 461 transitions. [2023-12-21 02:03:19,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 02:03:19,286 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 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 107 [2023-12-21 02:03:19,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:03:19,287 INFO L225 Difference]: With dead ends: 333 [2023-12-21 02:03:19,287 INFO L226 Difference]: Without dead ends: 185 [2023-12-21 02:03:19,287 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 02:03:19,289 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 30 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 216 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 02:03:19,289 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 216 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 02:03:19,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2023-12-21 02:03:19,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 151. [2023-12-21 02:03:19,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 122 states have (on average 1.3114754098360655) internal successors, (160), 123 states have internal predecessors, (160), 24 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2023-12-21 02:03:19,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 208 transitions. [2023-12-21 02:03:19,315 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 208 transitions. Word has length 107 [2023-12-21 02:03:19,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:03:19,315 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 208 transitions. [2023-12-21 02:03:19,316 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 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 02:03:19,316 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 208 transitions. [2023-12-21 02:03:19,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-12-21 02:03:19,317 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:03:19,317 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] [2023-12-21 02:03:19,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-21 02:03:19,317 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:03:19,317 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:03:19,317 INFO L85 PathProgramCache]: Analyzing trace with hash -1336108366, now seen corresponding path program 1 times [2023-12-21 02:03:19,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:03:19,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734980182] [2023-12-21 02:03:19,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:03:19,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:03:19,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:19,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:03:19,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:19,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:03:19,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:19,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:03:19,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:19,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:03:19,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:19,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:03:19,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:19,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:03:19,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:19,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:03:19,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:19,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:03:19,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:19,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:03:19,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:19,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:03:19,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:19,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:03:19,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:19,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:03:19,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:19,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:03:19,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:19,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:03:19,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:19,425 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 02:03:19,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:03:19,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734980182] [2023-12-21 02:03:19,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [734980182] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:03:19,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:03:19,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 02:03:19,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566103702] [2023-12-21 02:03:19,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:03:19,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 02:03:19,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:03:19,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 02:03:19,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 02:03:19,427 INFO L87 Difference]: Start difference. First operand 151 states and 208 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 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 02:03:19,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:03:19,483 INFO L93 Difference]: Finished difference Result 331 states and 457 transitions. [2023-12-21 02:03:19,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 02:03:19,483 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 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 107 [2023-12-21 02:03:19,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:03:19,495 INFO L225 Difference]: With dead ends: 331 [2023-12-21 02:03:19,495 INFO L226 Difference]: Without dead ends: 181 [2023-12-21 02:03:19,495 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 02:03:19,496 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 63 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 398 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 02:03:19,512 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 398 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 02:03:19,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2023-12-21 02:03:19,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 157. [2023-12-21 02:03:19,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 128 states have (on average 1.296875) internal successors, (166), 129 states have internal predecessors, (166), 24 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2023-12-21 02:03:19,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 214 transitions. [2023-12-21 02:03:19,543 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 214 transitions. Word has length 107 [2023-12-21 02:03:19,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:03:19,544 INFO L495 AbstractCegarLoop]: Abstraction has 157 states and 214 transitions. [2023-12-21 02:03:19,544 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 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 02:03:19,544 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 214 transitions. [2023-12-21 02:03:19,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-12-21 02:03:19,545 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:03:19,545 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] [2023-12-21 02:03:19,545 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-21 02:03:19,546 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:03:19,546 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:03:19,546 INFO L85 PathProgramCache]: Analyzing trace with hash 476364943, now seen corresponding path program 1 times [2023-12-21 02:03:19,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:03:19,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511518334] [2023-12-21 02:03:19,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:03:19,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:03:19,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:19,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:03:19,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:19,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:03:19,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:19,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:03:19,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:19,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:03:19,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:19,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:03:19,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:19,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:03:19,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:19,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:03:19,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:19,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:03:19,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:19,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:03:19,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:19,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:03:19,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:19,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:03:19,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:19,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:03:19,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:19,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:03:19,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:19,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:03:19,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:19,769 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 02:03:19,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:03:19,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511518334] [2023-12-21 02:03:19,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511518334] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:03:19,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:03:19,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 02:03:19,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812841206] [2023-12-21 02:03:19,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:03:19,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 02:03:19,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:03:19,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 02:03:19,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-12-21 02:03:19,771 INFO L87 Difference]: Start difference. First operand 157 states and 214 transitions. Second operand has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 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 02:03:20,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:03:20,027 INFO L93 Difference]: Finished difference Result 575 states and 790 transitions. [2023-12-21 02:03:20,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-21 02:03:20,028 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 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 109 [2023-12-21 02:03:20,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:03:20,029 INFO L225 Difference]: With dead ends: 575 [2023-12-21 02:03:20,029 INFO L226 Difference]: Without dead ends: 419 [2023-12-21 02:03:20,030 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 31 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-12-21 02:03:20,030 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 185 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 02:03:20,030 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 386 Invalid, 356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 02:03:20,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2023-12-21 02:03:20,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 215. [2023-12-21 02:03:20,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 170 states have (on average 1.2705882352941176) internal successors, (216), 171 states have internal predecessors, (216), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2023-12-21 02:03:20,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 292 transitions. [2023-12-21 02:03:20,069 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 292 transitions. Word has length 109 [2023-12-21 02:03:20,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:03:20,069 INFO L495 AbstractCegarLoop]: Abstraction has 215 states and 292 transitions. [2023-12-21 02:03:20,069 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 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 02:03:20,069 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 292 transitions. [2023-12-21 02:03:20,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-12-21 02:03:20,070 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:03:20,070 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] [2023-12-21 02:03:20,070 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-21 02:03:20,070 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:03:20,071 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:03:20,071 INFO L85 PathProgramCache]: Analyzing trace with hash -534752307, now seen corresponding path program 1 times [2023-12-21 02:03:20,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:03:20,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758841470] [2023-12-21 02:03:20,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:03:20,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:03:20,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:20,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:03:20,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:20,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:03:20,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:20,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:03:20,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:20,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:03:20,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:20,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:03:20,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:20,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:03:20,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:20,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:03:20,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:20,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:03:20,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:20,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:03:20,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:20,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:03:20,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:20,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:03:20,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:20,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:03:20,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:20,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:03:20,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:20,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:03:20,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:20,208 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 02:03:20,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:03:20,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758841470] [2023-12-21 02:03:20,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758841470] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:03:20,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:03:20,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 02:03:20,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006590981] [2023-12-21 02:03:20,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:03:20,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 02:03:20,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:03:20,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 02:03:20,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 02:03:20,209 INFO L87 Difference]: Start difference. First operand 215 states and 292 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 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 02:03:20,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:03:20,283 INFO L93 Difference]: Finished difference Result 505 states and 691 transitions. [2023-12-21 02:03:20,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 02:03:20,284 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 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 109 [2023-12-21 02:03:20,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:03:20,285 INFO L225 Difference]: With dead ends: 505 [2023-12-21 02:03:20,285 INFO L226 Difference]: Without dead ends: 349 [2023-12-21 02:03:20,286 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-21 02:03:20,286 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 130 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 444 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 02:03:20,286 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 444 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 02:03:20,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2023-12-21 02:03:20,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 237. [2023-12-21 02:03:20,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 192 states have (on average 1.2864583333333333) internal successors, (247), 193 states have internal predecessors, (247), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2023-12-21 02:03:20,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 323 transitions. [2023-12-21 02:03:20,324 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 323 transitions. Word has length 109 [2023-12-21 02:03:20,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:03:20,324 INFO L495 AbstractCegarLoop]: Abstraction has 237 states and 323 transitions. [2023-12-21 02:03:20,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 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 02:03:20,324 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 323 transitions. [2023-12-21 02:03:20,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-12-21 02:03:20,325 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:03:20,325 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] [2023-12-21 02:03:20,325 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-21 02:03:20,325 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:03:20,326 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:03:20,326 INFO L85 PathProgramCache]: Analyzing trace with hash -1208255749, now seen corresponding path program 1 times [2023-12-21 02:03:20,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:03:20,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32409389] [2023-12-21 02:03:20,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:03:20,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:03:20,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:20,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:03:20,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:20,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:03:20,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:20,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:03:20,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:20,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:03:20,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:20,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:03:20,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:20,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:03:20,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:20,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:03:20,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:20,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:03:20,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:20,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:03:20,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:20,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:03:20,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:20,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:03:20,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:20,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:03:20,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:20,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:03:20,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:20,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:03:20,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:20,637 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 02:03:20,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:03:20,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32409389] [2023-12-21 02:03:20,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32409389] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:03:20,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:03:20,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 02:03:20,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077141429] [2023-12-21 02:03:20,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:03:20,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 02:03:20,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:03:20,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 02:03:20,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-21 02:03:20,639 INFO L87 Difference]: Start difference. First operand 237 states and 323 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 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 02:03:20,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:03:20,865 INFO L93 Difference]: Finished difference Result 345 states and 466 transitions. [2023-12-21 02:03:20,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 02:03:20,865 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 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 109 [2023-12-21 02:03:20,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:03:20,867 INFO L225 Difference]: With dead ends: 345 [2023-12-21 02:03:20,867 INFO L226 Difference]: Without dead ends: 343 [2023-12-21 02:03:20,867 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-21 02:03:20,868 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 56 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 02:03:20,868 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 382 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 02:03:20,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2023-12-21 02:03:20,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 309. [2023-12-21 02:03:20,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 309 states, 264 states have (on average 1.3257575757575757) internal successors, (350), 265 states have internal predecessors, (350), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2023-12-21 02:03:20,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 426 transitions. [2023-12-21 02:03:20,911 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 426 transitions. Word has length 109 [2023-12-21 02:03:20,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:03:20,911 INFO L495 AbstractCegarLoop]: Abstraction has 309 states and 426 transitions. [2023-12-21 02:03:20,911 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 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 02:03:20,911 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 426 transitions. [2023-12-21 02:03:20,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-12-21 02:03:20,912 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:03:20,912 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] [2023-12-21 02:03:20,912 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-21 02:03:20,912 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:03:20,912 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:03:20,913 INFO L85 PathProgramCache]: Analyzing trace with hash -1208196167, now seen corresponding path program 1 times [2023-12-21 02:03:20,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:03:20,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840146710] [2023-12-21 02:03:20,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:03:20,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:03:20,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:21,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:03:21,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:21,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:03:21,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:21,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:03:21,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:21,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:03:21,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:21,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:03:21,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:21,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:03:21,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:21,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:03:21,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:21,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:03:21,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:21,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:03:21,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:21,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:03:21,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:21,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:03:21,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:21,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:03:21,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:21,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:03:21,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:21,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:03:21,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:21,397 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 02:03:21,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:03:21,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840146710] [2023-12-21 02:03:21,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840146710] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:03:21,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:03:21,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-21 02:03:21,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736453362] [2023-12-21 02:03:21,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:03:21,398 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-21 02:03:21,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:03:21,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-21 02:03:21,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-12-21 02:03:21,398 INFO L87 Difference]: Start difference. First operand 309 states and 426 transitions. Second operand has 10 states, 10 states have (on average 4.2) internal successors, (42), 10 states have internal predecessors, (42), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-21 02:03:21,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:03:21,841 INFO L93 Difference]: Finished difference Result 783 states and 1077 transitions. [2023-12-21 02:03:21,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-21 02:03:21,842 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.2) internal successors, (42), 10 states have internal predecessors, (42), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 109 [2023-12-21 02:03:21,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:03:21,845 INFO L225 Difference]: With dead ends: 783 [2023-12-21 02:03:21,845 INFO L226 Difference]: Without dead ends: 533 [2023-12-21 02:03:21,846 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=69, Invalid=171, Unknown=0, NotChecked=0, Total=240 [2023-12-21 02:03:21,846 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 332 mSDsluCounter, 386 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 332 SdHoareTripleChecker+Valid, 464 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 02:03:21,846 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [332 Valid, 464 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 360 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 02:03:21,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 533 states. [2023-12-21 02:03:21,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 533 to 335. [2023-12-21 02:03:21,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 290 states have (on average 1.3241379310344827) internal successors, (384), 291 states have internal predecessors, (384), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2023-12-21 02:03:21,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 460 transitions. [2023-12-21 02:03:21,883 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 460 transitions. Word has length 109 [2023-12-21 02:03:21,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:03:21,884 INFO L495 AbstractCegarLoop]: Abstraction has 335 states and 460 transitions. [2023-12-21 02:03:21,884 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.2) internal successors, (42), 10 states have internal predecessors, (42), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-21 02:03:21,884 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 460 transitions. [2023-12-21 02:03:21,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-12-21 02:03:21,885 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:03:21,885 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] [2023-12-21 02:03:21,885 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-21 02:03:21,885 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:03:21,885 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:03:21,885 INFO L85 PathProgramCache]: Analyzing trace with hash -1150937865, now seen corresponding path program 1 times [2023-12-21 02:03:21,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:03:21,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909063353] [2023-12-21 02:03:21,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:03:21,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:03:21,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:22,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:03:22,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:22,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:03:22,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:22,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:03:22,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:22,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:03:22,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:22,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:03:22,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:22,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:03:22,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:22,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:03:22,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:22,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:03:22,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:22,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:03:22,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:22,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:03:22,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:22,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:03:22,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:22,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:03:22,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:22,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:03:22,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:22,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:03:22,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:22,134 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 02:03:22,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:03:22,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909063353] [2023-12-21 02:03:22,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909063353] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:03:22,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:03:22,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 02:03:22,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458561066] [2023-12-21 02:03:22,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:03:22,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 02:03:22,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:03:22,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 02:03:22,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-21 02:03:22,136 INFO L87 Difference]: Start difference. First operand 335 states and 460 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 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 02:03:22,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:03:22,276 INFO L93 Difference]: Finished difference Result 860 states and 1167 transitions. [2023-12-21 02:03:22,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 02:03:22,276 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 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 109 [2023-12-21 02:03:22,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:03:22,279 INFO L225 Difference]: With dead ends: 860 [2023-12-21 02:03:22,279 INFO L226 Difference]: Without dead ends: 610 [2023-12-21 02:03:22,280 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-12-21 02:03:22,281 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 98 mSDsluCounter, 481 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 613 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 02:03:22,281 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 613 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 02:03:22,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 610 states. [2023-12-21 02:03:22,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 610 to 410. [2023-12-21 02:03:22,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 410 states, 365 states have (on average 1.3068493150684932) internal successors, (477), 366 states have internal predecessors, (477), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2023-12-21 02:03:22,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 553 transitions. [2023-12-21 02:03:22,329 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 553 transitions. Word has length 109 [2023-12-21 02:03:22,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:03:22,329 INFO L495 AbstractCegarLoop]: Abstraction has 410 states and 553 transitions. [2023-12-21 02:03:22,329 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 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 02:03:22,329 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 553 transitions. [2023-12-21 02:03:22,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-12-21 02:03:22,330 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:03:22,330 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 02:03:22,330 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-21 02:03:22,331 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:03:22,331 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:03:22,331 INFO L85 PathProgramCache]: Analyzing trace with hash -176294472, now seen corresponding path program 1 times [2023-12-21 02:03:22,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:03:22,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149131551] [2023-12-21 02:03:22,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:03:22,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:03:22,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:22,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:03:22,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:22,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:03:22,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:22,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:03:22,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:22,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:03:22,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:22,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:03:22,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:22,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:03:22,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:22,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:03:22,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:22,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:03:22,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:22,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:03:22,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:22,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:03:22,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:22,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:03:22,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:22,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:03:22,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:22,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:03:22,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:22,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:03:22,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:22,691 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 02:03:22,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:03:22,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149131551] [2023-12-21 02:03:22,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1149131551] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:03:22,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:03:22,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-21 02:03:22,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927604316] [2023-12-21 02:03:22,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:03:22,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 02:03:22,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:03:22,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 02:03:22,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-21 02:03:22,692 INFO L87 Difference]: Start difference. First operand 410 states and 553 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 02:03:23,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:03:23,083 INFO L93 Difference]: Finished difference Result 946 states and 1279 transitions. [2023-12-21 02:03:23,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 02:03:23,084 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 02:03:23,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:03:23,086 INFO L225 Difference]: With dead ends: 946 [2023-12-21 02:03:23,086 INFO L226 Difference]: Without dead ends: 636 [2023-12-21 02:03:23,086 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=120, Invalid=260, Unknown=0, NotChecked=0, Total=380 [2023-12-21 02:03:23,087 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 309 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 296 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 309 SdHoareTripleChecker+Valid, 514 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 02:03:23,087 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [309 Valid, 514 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 296 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 02:03:23,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 636 states. [2023-12-21 02:03:23,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 636 to 419. [2023-12-21 02:03:23,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 419 states, 374 states have (on average 1.3074866310160427) internal successors, (489), 375 states have internal predecessors, (489), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2023-12-21 02:03:23,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 565 transitions. [2023-12-21 02:03:23,130 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 565 transitions. Word has length 110 [2023-12-21 02:03:23,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:03:23,130 INFO L495 AbstractCegarLoop]: Abstraction has 419 states and 565 transitions. [2023-12-21 02:03:23,130 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 02:03:23,130 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 565 transitions. [2023-12-21 02:03:23,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-12-21 02:03:23,132 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:03:23,132 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 02:03:23,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-21 02:03:23,132 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:03:23,132 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:03:23,132 INFO L85 PathProgramCache]: Analyzing trace with hash -1860855582, now seen corresponding path program 1 times [2023-12-21 02:03:23,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:03:23,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974396567] [2023-12-21 02:03:23,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:03:23,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:03:23,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:23,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:03:23,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:23,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:03:23,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:23,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:03:23,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:23,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:03:23,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:23,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:03:23,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:23,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:03:23,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:23,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:03:23,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:23,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:03:23,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:23,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:03:23,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:23,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:03:23,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:23,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:03:23,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:23,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:03:23,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:23,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:03:23,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:23,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:03:23,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:23,588 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 02:03:23,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:03:23,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974396567] [2023-12-21 02:03:23,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974396567] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:03:23,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:03:23,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-21 02:03:23,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057104174] [2023-12-21 02:03:23,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:03:23,589 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 02:03:23,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:03:23,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 02:03:23,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-21 02:03:23,589 INFO L87 Difference]: Start difference. First operand 419 states and 565 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 02:03:23,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:03:23,913 INFO L93 Difference]: Finished difference Result 839 states and 1137 transitions. [2023-12-21 02:03:23,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-21 02:03:23,913 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 02:03:23,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:03:23,915 INFO L225 Difference]: With dead ends: 839 [2023-12-21 02:03:23,915 INFO L226 Difference]: Without dead ends: 520 [2023-12-21 02:03:23,915 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2023-12-21 02:03:23,916 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 291 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 344 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 291 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 02:03:23,916 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [291 Valid, 354 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 344 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 02:03:23,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2023-12-21 02:03:23,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 404. [2023-12-21 02:03:23,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 359 states have (on average 1.3036211699164346) internal successors, (468), 360 states have internal predecessors, (468), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2023-12-21 02:03:23,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 544 transitions. [2023-12-21 02:03:23,958 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 544 transitions. Word has length 110 [2023-12-21 02:03:23,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:03:23,959 INFO L495 AbstractCegarLoop]: Abstraction has 404 states and 544 transitions. [2023-12-21 02:03:23,959 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 02:03:23,959 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 544 transitions. [2023-12-21 02:03:23,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-21 02:03:23,960 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:03:23,960 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 02:03:23,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-21 02:03:23,960 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:03:23,960 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:03:23,960 INFO L85 PathProgramCache]: Analyzing trace with hash 1550086111, now seen corresponding path program 1 times [2023-12-21 02:03:23,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:03:23,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42403226] [2023-12-21 02:03:23,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:03:23,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:03:23,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:24,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:03:24,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:24,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:03:24,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:24,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:03:24,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:24,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:03:24,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:24,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:03:24,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:24,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:03:24,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:24,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:03:24,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:24,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:03:24,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:24,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:03:24,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:24,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:03:24,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:24,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:03:24,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:24,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:03:24,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:24,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:03:24,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:24,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:03:24,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:24,120 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 02:03:24,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:03:24,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42403226] [2023-12-21 02:03:24,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42403226] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:03:24,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:03:24,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 02:03:24,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348032081] [2023-12-21 02:03:24,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:03:24,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 02:03:24,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:03:24,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 02:03:24,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 02:03:24,122 INFO L87 Difference]: Start difference. First operand 404 states and 544 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 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 02:03:24,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:03:24,215 INFO L93 Difference]: Finished difference Result 826 states and 1111 transitions. [2023-12-21 02:03:24,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 02:03:24,216 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 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 02:03:24,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:03:24,218 INFO L225 Difference]: With dead ends: 826 [2023-12-21 02:03:24,218 INFO L226 Difference]: Without dead ends: 484 [2023-12-21 02:03:24,218 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 02:03:24,219 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 80 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 425 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 02:03:24,219 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 425 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 02:03:24,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 484 states. [2023-12-21 02:03:24,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 484 to 404. [2023-12-21 02:03:24,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 359 states have (on average 1.2924791086350975) internal successors, (464), 360 states have internal predecessors, (464), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2023-12-21 02:03:24,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 540 transitions. [2023-12-21 02:03:24,260 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 540 transitions. Word has length 111 [2023-12-21 02:03:24,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:03:24,260 INFO L495 AbstractCegarLoop]: Abstraction has 404 states and 540 transitions. [2023-12-21 02:03:24,260 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 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 02:03:24,260 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 540 transitions. [2023-12-21 02:03:24,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-21 02:03:24,261 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:03:24,261 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 02:03:24,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-21 02:03:24,261 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:03:24,262 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:03:24,262 INFO L85 PathProgramCache]: Analyzing trace with hash 732437661, now seen corresponding path program 1 times [2023-12-21 02:03:24,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:03:24,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693570348] [2023-12-21 02:03:24,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:03:24,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:03:24,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:25,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:03:25,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:25,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:03:25,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:25,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:03:25,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:25,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:03:25,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:25,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:03:25,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:25,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:03:25,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:25,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:03:25,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:25,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:03:25,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:25,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:03:25,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:25,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:03:25,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:25,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:03:25,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:25,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:03:25,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:25,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:03:25,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:25,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:03:25,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:25,276 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 02:03:25,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:03:25,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693570348] [2023-12-21 02:03:25,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693570348] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:03:25,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:03:25,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-12-21 02:03:25,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722767381] [2023-12-21 02:03:25,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:03:25,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-21 02:03:25,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:03:25,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-21 02:03:25,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2023-12-21 02:03:25,279 INFO L87 Difference]: Start difference. First operand 404 states and 540 transitions. Second operand has 14 states, 12 states have (on average 3.6666666666666665) internal successors, (44), 14 states have internal predecessors, (44), 7 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 7 states have call successors, (14) [2023-12-21 02:03:25,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:03:25,970 INFO L93 Difference]: Finished difference Result 778 states and 1039 transitions. [2023-12-21 02:03:25,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-21 02:03:25,971 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 3.6666666666666665) internal successors, (44), 14 states have internal predecessors, (44), 7 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 7 states have call successors, (14) Word has length 111 [2023-12-21 02:03:25,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:03:25,972 INFO L225 Difference]: With dead ends: 778 [2023-12-21 02:03:25,972 INFO L226 Difference]: Without dead ends: 464 [2023-12-21 02:03:25,973 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=124, Invalid=338, Unknown=0, NotChecked=0, Total=462 [2023-12-21 02:03:25,973 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 306 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 620 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 306 SdHoareTripleChecker+Valid, 425 SdHoareTripleChecker+Invalid, 704 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 620 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-21 02:03:25,974 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [306 Valid, 425 Invalid, 704 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 620 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-21 02:03:25,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2023-12-21 02:03:26,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 404. [2023-12-21 02:03:26,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 359 states have (on average 1.275766016713092) internal successors, (458), 360 states have internal predecessors, (458), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2023-12-21 02:03:26,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 534 transitions. [2023-12-21 02:03:26,015 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 534 transitions. Word has length 111 [2023-12-21 02:03:26,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:03:26,015 INFO L495 AbstractCegarLoop]: Abstraction has 404 states and 534 transitions. [2023-12-21 02:03:26,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 3.6666666666666665) internal successors, (44), 14 states have internal predecessors, (44), 7 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 7 states have call successors, (14) [2023-12-21 02:03:26,016 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 534 transitions. [2023-12-21 02:03:26,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-12-21 02:03:26,017 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:03:26,017 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 02:03:26,017 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-21 02:03:26,018 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:03:26,018 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:03:26,018 INFO L85 PathProgramCache]: Analyzing trace with hash -1603373613, now seen corresponding path program 1 times [2023-12-21 02:03:26,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:03:26,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547725462] [2023-12-21 02:03:26,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:03:26,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:03:26,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:26,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:03:26,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:26,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:03:26,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:26,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:03:26,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:26,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:03:26,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:26,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:03:26,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:26,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:03:26,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:26,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:03:26,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:26,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:03:26,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:26,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:03:26,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:26,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:03:26,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:26,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:03:26,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:26,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:03:26,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:26,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:03:26,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:26,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:03:26,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:26,250 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 02:03:26,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:03:26,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547725462] [2023-12-21 02:03:26,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547725462] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:03:26,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:03:26,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-21 02:03:26,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511714340] [2023-12-21 02:03:26,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:03:26,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 02:03:26,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:03:26,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 02:03:26,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-21 02:03:26,251 INFO L87 Difference]: Start difference. First operand 404 states and 534 transitions. Second operand has 8 states, 7 states have (on average 6.428571428571429) 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), 2 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-21 02:03:26,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:03:26,438 INFO L93 Difference]: Finished difference Result 866 states and 1141 transitions. [2023-12-21 02:03:26,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-21 02:03:26,439 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.428571428571429) 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), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 112 [2023-12-21 02:03:26,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:03:26,441 INFO L225 Difference]: With dead ends: 866 [2023-12-21 02:03:26,441 INFO L226 Difference]: Without dead ends: 548 [2023-12-21 02:03:26,441 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2023-12-21 02:03:26,442 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 222 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 468 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 02:03:26,442 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [222 Valid, 468 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 02:03:26,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2023-12-21 02:03:26,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 445. [2023-12-21 02:03:26,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 445 states, 400 states have (on average 1.275) internal successors, (510), 401 states have internal predecessors, (510), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2023-12-21 02:03:26,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 586 transitions. [2023-12-21 02:03:26,486 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 586 transitions. Word has length 112 [2023-12-21 02:03:26,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:03:26,487 INFO L495 AbstractCegarLoop]: Abstraction has 445 states and 586 transitions. [2023-12-21 02:03:26,487 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.428571428571429) 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), 2 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-21 02:03:26,487 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 586 transitions. [2023-12-21 02:03:26,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-12-21 02:03:26,488 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:03:26,489 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 02:03:26,489 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-21 02:03:26,489 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:03:26,489 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:03:26,489 INFO L85 PathProgramCache]: Analyzing trace with hash -902309035, now seen corresponding path program 1 times [2023-12-21 02:03:26,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:03:26,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126071734] [2023-12-21 02:03:26,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:03:26,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:03:26,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:26,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:03:26,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:26,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:03:26,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:26,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:03:26,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:26,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:03:26,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:26,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:03:26,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:26,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:03:26,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:26,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:03:26,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:26,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:03:26,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:26,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:03:26,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:26,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:03:26,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:26,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:03:26,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:26,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:03:26,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:26,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:03:26,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:26,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:03:26,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:26,958 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 02:03:26,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:03:26,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126071734] [2023-12-21 02:03:26,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126071734] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:03:26,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:03:26,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-21 02:03:26,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366366381] [2023-12-21 02:03:26,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:03:26,960 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-21 02:03:26,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:03:26,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-21 02:03:26,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-12-21 02:03:26,961 INFO L87 Difference]: Start difference. First operand 445 states and 586 transitions. Second operand has 11 states, 10 states have (on average 4.5) internal successors, (45), 11 states have internal predecessors, (45), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2023-12-21 02:03:27,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:03:27,375 INFO L93 Difference]: Finished difference Result 825 states and 1089 transitions. [2023-12-21 02:03:27,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-21 02:03:27,376 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 4.5) internal successors, (45), 11 states have internal predecessors, (45), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 112 [2023-12-21 02:03:27,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:03:27,377 INFO L225 Difference]: With dead ends: 825 [2023-12-21 02:03:27,378 INFO L226 Difference]: Without dead ends: 472 [2023-12-21 02:03:27,378 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2023-12-21 02:03:27,378 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 171 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 407 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 309 SdHoareTripleChecker+Invalid, 412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 02:03:27,379 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 309 Invalid, 412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 407 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 02:03:27,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2023-12-21 02:03:27,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 432. [2023-12-21 02:03:27,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 432 states, 387 states have (on average 1.2635658914728682) internal successors, (489), 388 states have internal predecessors, (489), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2023-12-21 02:03:27,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 565 transitions. [2023-12-21 02:03:27,429 INFO L78 Accepts]: Start accepts. Automaton has 432 states and 565 transitions. Word has length 112 [2023-12-21 02:03:27,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:03:27,429 INFO L495 AbstractCegarLoop]: Abstraction has 432 states and 565 transitions. [2023-12-21 02:03:27,429 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 4.5) internal successors, (45), 11 states have internal predecessors, (45), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2023-12-21 02:03:27,429 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states and 565 transitions. [2023-12-21 02:03:27,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-12-21 02:03:27,430 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:03:27,430 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 02:03:27,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-21 02:03:27,430 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:03:27,431 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:03:27,431 INFO L85 PathProgramCache]: Analyzing trace with hash 976426303, now seen corresponding path program 1 times [2023-12-21 02:03:27,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:03:27,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132946223] [2023-12-21 02:03:27,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:03:27,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:03:27,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:28,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:03:28,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:28,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:03:28,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:28,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:03:28,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:28,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:03:28,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:28,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:03:28,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:28,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:03:28,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:28,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:03:28,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:28,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:03:28,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:28,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:03:28,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:28,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:03:28,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:28,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:03:28,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:28,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:03:28,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:28,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:03:28,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:28,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:03:28,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:28,213 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 02:03:28,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:03:28,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132946223] [2023-12-21 02:03:28,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132946223] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:03:28,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:03:28,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-21 02:03:28,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433919098] [2023-12-21 02:03:28,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:03:28,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-21 02:03:28,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:03:28,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-21 02:03:28,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-12-21 02:03:28,214 INFO L87 Difference]: Start difference. First operand 432 states and 565 transitions. Second operand has 12 states, 12 states have (on average 3.75) internal successors, (45), 12 states have internal predecessors, (45), 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 02:03:28,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:03:28,992 INFO L93 Difference]: Finished difference Result 1071 states and 1412 transitions. [2023-12-21 02:03:28,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-21 02:03:28,993 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.75) internal successors, (45), 12 states have internal predecessors, (45), 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 112 [2023-12-21 02:03:28,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:03:28,995 INFO L225 Difference]: With dead ends: 1071 [2023-12-21 02:03:28,995 INFO L226 Difference]: Without dead ends: 739 [2023-12-21 02:03:28,996 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=129, Invalid=377, Unknown=0, NotChecked=0, Total=506 [2023-12-21 02:03:28,997 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 311 mSDsluCounter, 636 mSDsCounter, 0 mSdLazyCounter, 714 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 311 SdHoareTripleChecker+Valid, 730 SdHoareTripleChecker+Invalid, 768 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 714 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-21 02:03:28,997 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [311 Valid, 730 Invalid, 768 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 714 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-21 02:03:28,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 739 states. [2023-12-21 02:03:29,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 739 to 593. [2023-12-21 02:03:29,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 593 states, 548 states have (on average 1.2992700729927007) internal successors, (712), 549 states have internal predecessors, (712), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2023-12-21 02:03:29,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 788 transitions. [2023-12-21 02:03:29,045 INFO L78 Accepts]: Start accepts. Automaton has 593 states and 788 transitions. Word has length 112 [2023-12-21 02:03:29,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:03:29,045 INFO L495 AbstractCegarLoop]: Abstraction has 593 states and 788 transitions. [2023-12-21 02:03:29,045 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.75) internal successors, (45), 12 states have internal predecessors, (45), 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 02:03:29,045 INFO L276 IsEmpty]: Start isEmpty. Operand 593 states and 788 transitions. [2023-12-21 02:03:29,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-12-21 02:03:29,046 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:03:29,046 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 02:03:29,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-12-21 02:03:29,046 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:03:29,047 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:03:29,047 INFO L85 PathProgramCache]: Analyzing trace with hash 599281003, now seen corresponding path program 1 times [2023-12-21 02:03:29,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:03:29,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855441036] [2023-12-21 02:03:29,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:03:29,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:03:29,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:29,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:03:29,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:29,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:03:29,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:29,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:03:29,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:29,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:03:29,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:29,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:03:29,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:29,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:03:29,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:29,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:03:29,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:29,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:03:29,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:29,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:03:29,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:29,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:03:29,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:29,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:03:29,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:29,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:03:29,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:29,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:03:29,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:29,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:03:29,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:29,249 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 02:03:29,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:03:29,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855441036] [2023-12-21 02:03:29,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855441036] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:03:29,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:03:29,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 02:03:29,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737021670] [2023-12-21 02:03:29,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:03:29,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 02:03:29,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:03:29,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 02:03:29,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-21 02:03:29,251 INFO L87 Difference]: Start difference. First operand 593 states and 788 transitions. Second operand has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 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 02:03:29,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:03:29,487 INFO L93 Difference]: Finished difference Result 1244 states and 1628 transitions. [2023-12-21 02:03:29,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 02:03:29,487 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 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 113 [2023-12-21 02:03:29,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:03:29,490 INFO L225 Difference]: With dead ends: 1244 [2023-12-21 02:03:29,490 INFO L226 Difference]: Without dead ends: 814 [2023-12-21 02:03:29,491 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2023-12-21 02:03:29,492 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 211 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 404 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 02:03:29,492 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 404 Invalid, 280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 02:03:29,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 814 states. [2023-12-21 02:03:29,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 814 to 605. [2023-12-21 02:03:29,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 605 states, 560 states have (on average 1.292857142857143) internal successors, (724), 561 states have internal predecessors, (724), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2023-12-21 02:03:29,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 605 states to 605 states and 800 transitions. [2023-12-21 02:03:29,535 INFO L78 Accepts]: Start accepts. Automaton has 605 states and 800 transitions. Word has length 113 [2023-12-21 02:03:29,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:03:29,535 INFO L495 AbstractCegarLoop]: Abstraction has 605 states and 800 transitions. [2023-12-21 02:03:29,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 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 02:03:29,535 INFO L276 IsEmpty]: Start isEmpty. Operand 605 states and 800 transitions. [2023-12-21 02:03:29,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-12-21 02:03:29,536 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:03:29,536 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 02:03:29,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-12-21 02:03:29,536 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:03:29,536 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:03:29,536 INFO L85 PathProgramCache]: Analyzing trace with hash -989066899, now seen corresponding path program 1 times [2023-12-21 02:03:29,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:03:29,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243835979] [2023-12-21 02:03:29,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:03:29,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:03:29,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:29,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:03:29,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:29,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:03:29,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:29,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:03:29,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:29,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:03:29,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:29,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:03:29,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:29,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:03:29,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:29,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:03:29,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:29,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:03:29,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:29,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:03:29,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:29,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:03:29,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:29,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:03:29,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:29,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:03:29,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:29,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:03:29,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:29,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:03:29,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:29,939 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 02:03:29,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:03:29,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243835979] [2023-12-21 02:03:29,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243835979] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:03:29,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:03:29,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-21 02:03:29,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276054783] [2023-12-21 02:03:29,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:03:29,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 02:03:29,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:03:29,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 02:03:29,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-12-21 02:03:29,943 INFO L87 Difference]: Start difference. First operand 605 states and 800 transitions. Second operand has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 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 02:03:30,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:03:30,308 INFO L93 Difference]: Finished difference Result 1038 states and 1356 transitions. [2023-12-21 02:03:30,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-21 02:03:30,308 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 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 113 [2023-12-21 02:03:30,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:03:30,310 INFO L225 Difference]: With dead ends: 1038 [2023-12-21 02:03:30,310 INFO L226 Difference]: Without dead ends: 639 [2023-12-21 02:03:30,311 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2023-12-21 02:03:30,311 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 202 mSDsluCounter, 406 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 504 SdHoareTripleChecker+Invalid, 478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 02:03:30,311 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 504 Invalid, 478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 421 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 02:03:30,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 639 states. [2023-12-21 02:03:30,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 639 to 572. [2023-12-21 02:03:30,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 572 states, 527 states have (on average 1.2770398481973435) internal successors, (673), 528 states have internal predecessors, (673), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2023-12-21 02:03:30,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 572 states and 749 transitions. [2023-12-21 02:03:30,353 INFO L78 Accepts]: Start accepts. Automaton has 572 states and 749 transitions. Word has length 113 [2023-12-21 02:03:30,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:03:30,353 INFO L495 AbstractCegarLoop]: Abstraction has 572 states and 749 transitions. [2023-12-21 02:03:30,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 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 02:03:30,353 INFO L276 IsEmpty]: Start isEmpty. Operand 572 states and 749 transitions. [2023-12-21 02:03:30,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-12-21 02:03:30,354 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:03:30,354 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 02:03:30,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-12-21 02:03:30,354 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:03:30,354 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:03:30,354 INFO L85 PathProgramCache]: Analyzing trace with hash 969858337, now seen corresponding path program 1 times [2023-12-21 02:03:30,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:03:30,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709105104] [2023-12-21 02:03:30,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:03:30,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:03:30,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:30,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:03:30,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:30,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:03:30,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:30,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:03:30,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:30,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:03:30,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:30,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:03:30,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:30,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:03:30,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:30,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:03:30,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:30,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:03:30,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:30,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:03:30,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:30,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:03:30,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:30,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:03:30,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:30,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:03:30,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:30,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:03:30,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:30,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:03:30,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:30,691 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 02:03:30,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:03:30,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709105104] [2023-12-21 02:03:30,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709105104] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:03:30,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:03:30,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-21 02:03:30,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230067777] [2023-12-21 02:03:30,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:03:30,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 02:03:30,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:03:30,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 02:03:30,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-12-21 02:03:30,693 INFO L87 Difference]: Start difference. First operand 572 states and 749 transitions. Second operand has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 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 02:03:31,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:03:31,047 INFO L93 Difference]: Finished difference Result 1003 states and 1306 transitions. [2023-12-21 02:03:31,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 02:03:31,047 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 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 113 [2023-12-21 02:03:31,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:03:31,049 INFO L225 Difference]: With dead ends: 1003 [2023-12-21 02:03:31,049 INFO L226 Difference]: Without dead ends: 631 [2023-12-21 02:03:31,049 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2023-12-21 02:03:31,050 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 189 mSDsluCounter, 374 mSDsCounter, 0 mSdLazyCounter, 420 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 468 SdHoareTripleChecker+Invalid, 471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 02:03:31,053 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [189 Valid, 468 Invalid, 471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 420 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 02:03:31,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 631 states. [2023-12-21 02:03:31,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 631 to 566. [2023-12-21 02:03:31,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 566 states, 521 states have (on average 1.2744721689059502) internal successors, (664), 522 states have internal predecessors, (664), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2023-12-21 02:03:31,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 740 transitions. [2023-12-21 02:03:31,099 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 740 transitions. Word has length 113 [2023-12-21 02:03:31,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:03:31,100 INFO L495 AbstractCegarLoop]: Abstraction has 566 states and 740 transitions. [2023-12-21 02:03:31,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 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 02:03:31,100 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 740 transitions. [2023-12-21 02:03:31,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-12-21 02:03:31,101 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:03:31,101 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 02:03:31,101 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-12-21 02:03:31,101 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:03:31,101 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:03:31,101 INFO L85 PathProgramCache]: Analyzing trace with hash -41258913, now seen corresponding path program 1 times [2023-12-21 02:03:31,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:03:31,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523200572] [2023-12-21 02:03:31,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:03:31,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:03:31,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:31,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:03:31,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:31,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:03:31,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:31,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:03:31,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:31,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:03:31,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:31,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:03:31,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:31,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:03:31,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:31,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:03:31,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:31,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:03:31,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:31,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:03:31,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:31,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:03:31,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:31,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:03:31,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:31,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:03:31,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:31,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:03:31,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:31,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:03:31,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:31,390 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 02:03:31,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:03:31,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523200572] [2023-12-21 02:03:31,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1523200572] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:03:31,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:03:31,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-21 02:03:31,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043786872] [2023-12-21 02:03:31,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:03:31,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 02:03:31,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:03:31,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 02:03:31,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-21 02:03:31,391 INFO L87 Difference]: Start difference. First operand 566 states and 740 transitions. Second operand has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 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 02:03:31,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:03:31,692 INFO L93 Difference]: Finished difference Result 999 states and 1299 transitions. [2023-12-21 02:03:31,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-21 02:03:31,693 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 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 113 [2023-12-21 02:03:31,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:03:31,694 INFO L225 Difference]: With dead ends: 999 [2023-12-21 02:03:31,694 INFO L226 Difference]: Without dead ends: 633 [2023-12-21 02:03:31,695 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-12-21 02:03:31,695 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 119 mSDsluCounter, 382 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 476 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 02:03:31,696 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 476 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 370 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 02:03:31,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 633 states. [2023-12-21 02:03:31,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 633 to 566. [2023-12-21 02:03:31,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 566 states, 521 states have (on average 1.2687140115163147) internal successors, (661), 522 states have internal predecessors, (661), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2023-12-21 02:03:31,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 737 transitions. [2023-12-21 02:03:31,739 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 737 transitions. Word has length 113 [2023-12-21 02:03:31,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:03:31,739 INFO L495 AbstractCegarLoop]: Abstraction has 566 states and 737 transitions. [2023-12-21 02:03:31,739 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 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 02:03:31,739 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 737 transitions. [2023-12-21 02:03:31,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-21 02:03:31,740 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:03:31,740 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 02:03:31,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-12-21 02:03:31,740 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:03:31,741 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:03:31,741 INFO L85 PathProgramCache]: Analyzing trace with hash 1580198383, now seen corresponding path program 1 times [2023-12-21 02:03:31,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:03:31,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242552451] [2023-12-21 02:03:31,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:03:31,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:03:31,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:32,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:03:32,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:32,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:03:32,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:32,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:03:32,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:32,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:03:32,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:32,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:03:32,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:32,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:03:32,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:32,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:03:32,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:32,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:03:32,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:32,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:03:32,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:32,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:03:32,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:32,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:03:32,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:32,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:03:32,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:32,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:03:32,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:32,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:03:32,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:32,407 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 02:03:32,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:03:32,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242552451] [2023-12-21 02:03:32,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242552451] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:03:32,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:03:32,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-21 02:03:32,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499163624] [2023-12-21 02:03:32,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:03:32,408 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-21 02:03:32,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:03:32,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-21 02:03:32,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2023-12-21 02:03:32,408 INFO L87 Difference]: Start difference. First operand 566 states and 737 transitions. Second operand has 12 states, 12 states have (on average 3.9166666666666665) internal successors, (47), 12 states have internal predecessors, (47), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2023-12-21 02:03:33,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:03:33,022 INFO L93 Difference]: Finished difference Result 1329 states and 1729 transitions. [2023-12-21 02:03:33,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-21 02:03:33,022 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.9166666666666665) internal successors, (47), 12 states have internal predecessors, (47), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 114 [2023-12-21 02:03:33,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:03:33,025 INFO L225 Difference]: With dead ends: 1329 [2023-12-21 02:03:33,025 INFO L226 Difference]: Without dead ends: 997 [2023-12-21 02:03:33,026 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=102, Invalid=204, Unknown=0, NotChecked=0, Total=306 [2023-12-21 02:03:33,027 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 272 mSDsluCounter, 753 mSDsCounter, 0 mSdLazyCounter, 681 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 272 SdHoareTripleChecker+Valid, 885 SdHoareTripleChecker+Invalid, 737 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 681 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-21 02:03:33,027 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [272 Valid, 885 Invalid, 737 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 681 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-21 02:03:33,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 997 states. [2023-12-21 02:03:33,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 997 to 845. [2023-12-21 02:03:33,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 845 states, 772 states have (on average 1.2487046632124352) internal successors, (964), 774 states have internal predecessors, (964), 62 states have call successors, (62), 10 states have call predecessors, (62), 10 states have return successors, (62), 60 states have call predecessors, (62), 62 states have call successors, (62) [2023-12-21 02:03:33,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 845 states to 845 states and 1088 transitions. [2023-12-21 02:03:33,126 INFO L78 Accepts]: Start accepts. Automaton has 845 states and 1088 transitions. Word has length 114 [2023-12-21 02:03:33,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:03:33,126 INFO L495 AbstractCegarLoop]: Abstraction has 845 states and 1088 transitions. [2023-12-21 02:03:33,127 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.9166666666666665) internal successors, (47), 12 states have internal predecessors, (47), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2023-12-21 02:03:33,127 INFO L276 IsEmpty]: Start isEmpty. Operand 845 states and 1088 transitions. [2023-12-21 02:03:33,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-21 02:03:33,128 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:03:33,128 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 02:03:33,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-12-21 02:03:33,128 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:03:33,128 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:03:33,128 INFO L85 PathProgramCache]: Analyzing trace with hash 1187171373, now seen corresponding path program 1 times [2023-12-21 02:03:33,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:03:33,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667323460] [2023-12-21 02:03:33,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:03:33,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:03:33,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:33,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:03:33,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:33,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:03:33,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:33,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:03:33,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:33,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:03:33,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:33,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:03:33,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:33,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:03:33,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:33,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:03:33,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:33,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:03:33,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:33,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:03:33,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:33,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:03:33,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:33,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:03:33,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:33,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:03:33,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:33,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:03:33,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:33,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:03:33,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:33,497 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 02:03:33,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:03:33,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667323460] [2023-12-21 02:03:33,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1667323460] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:03:33,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:03:33,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-21 02:03:33,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401708937] [2023-12-21 02:03:33,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:03:33,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 02:03:33,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:03:33,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 02:03:33,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-12-21 02:03:33,499 INFO L87 Difference]: Start difference. First operand 845 states and 1088 transitions. Second operand has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 9 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 02:03:33,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:03:33,791 INFO L93 Difference]: Finished difference Result 1556 states and 2001 transitions. [2023-12-21 02:03:33,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 02:03:33,792 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 9 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 02:03:33,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:03:33,794 INFO L225 Difference]: With dead ends: 1556 [2023-12-21 02:03:33,794 INFO L226 Difference]: Without dead ends: 959 [2023-12-21 02:03:33,795 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2023-12-21 02:03:33,796 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 272 mSDsluCounter, 705 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 272 SdHoareTripleChecker+Valid, 806 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 02:03:33,796 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [272 Valid, 806 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 02:03:33,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 959 states. [2023-12-21 02:03:33,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 959 to 849. [2023-12-21 02:03:33,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 849 states, 776 states have (on average 1.2371134020618557) internal successors, (960), 778 states have internal predecessors, (960), 62 states have call successors, (62), 10 states have call predecessors, (62), 10 states have return successors, (62), 60 states have call predecessors, (62), 62 states have call successors, (62) [2023-12-21 02:03:33,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 849 states to 849 states and 1084 transitions. [2023-12-21 02:03:33,894 INFO L78 Accepts]: Start accepts. Automaton has 849 states and 1084 transitions. Word has length 114 [2023-12-21 02:03:33,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:03:33,894 INFO L495 AbstractCegarLoop]: Abstraction has 849 states and 1084 transitions. [2023-12-21 02:03:33,895 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 9 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 02:03:33,895 INFO L276 IsEmpty]: Start isEmpty. Operand 849 states and 1084 transitions. [2023-12-21 02:03:33,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-21 02:03:33,895 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:03:33,895 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 02:03:33,896 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-12-21 02:03:33,896 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:03:33,896 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:03:33,896 INFO L85 PathProgramCache]: Analyzing trace with hash 1799053101, now seen corresponding path program 1 times [2023-12-21 02:03:33,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:03:33,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141787449] [2023-12-21 02:03:33,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:03:33,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:03:33,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:34,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:03:34,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:34,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:03:34,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:34,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:03:34,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:34,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:03:34,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:34,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:03:34,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:34,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:03:34,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:34,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:03:34,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:34,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:03:34,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:34,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:03:34,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:34,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:03:34,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:34,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:03:34,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:34,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:03:34,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:34,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:03:34,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:34,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:03:34,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:34,167 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 02:03:34,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:03:34,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141787449] [2023-12-21 02:03:34,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141787449] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:03:34,167 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:03:34,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 02:03:34,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695241954] [2023-12-21 02:03:34,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:03:34,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 02:03:34,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:03:34,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 02:03:34,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-21 02:03:34,169 INFO L87 Difference]: Start difference. First operand 849 states and 1084 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 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 02:03:34,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:03:34,436 INFO L93 Difference]: Finished difference Result 1542 states and 1975 transitions. [2023-12-21 02:03:34,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-21 02:03:34,437 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 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 02:03:34,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:03:34,440 INFO L225 Difference]: With dead ends: 1542 [2023-12-21 02:03:34,440 INFO L226 Difference]: Without dead ends: 851 [2023-12-21 02:03:34,441 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2023-12-21 02:03:34,442 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 162 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 528 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 02:03:34,442 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 528 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 02:03:34,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 851 states. [2023-12-21 02:03:34,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 851 to 821. [2023-12-21 02:03:34,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 821 states, 748 states have (on average 1.2352941176470589) internal successors, (924), 750 states have internal predecessors, (924), 62 states have call successors, (62), 10 states have call predecessors, (62), 10 states have return successors, (62), 60 states have call predecessors, (62), 62 states have call successors, (62) [2023-12-21 02:03:34,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 821 states to 821 states and 1048 transitions. [2023-12-21 02:03:34,523 INFO L78 Accepts]: Start accepts. Automaton has 821 states and 1048 transitions. Word has length 114 [2023-12-21 02:03:34,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:03:34,523 INFO L495 AbstractCegarLoop]: Abstraction has 821 states and 1048 transitions. [2023-12-21 02:03:34,523 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 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 02:03:34,523 INFO L276 IsEmpty]: Start isEmpty. Operand 821 states and 1048 transitions. [2023-12-21 02:03:34,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-12-21 02:03:34,524 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:03:34,524 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 02:03:34,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-12-21 02:03:34,524 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:03:34,524 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:03:34,525 INFO L85 PathProgramCache]: Analyzing trace with hash -940737180, now seen corresponding path program 1 times [2023-12-21 02:03:34,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:03:34,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842017523] [2023-12-21 02:03:34,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:03:34,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:03:34,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:36,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:03:36,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:36,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:03:36,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:36,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:03:36,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:36,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:03:36,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:36,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:03:36,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:36,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:03:36,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:36,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:03:36,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:36,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:03:36,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:36,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:03:36,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:36,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:03:36,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:36,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:03:36,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:36,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:03:36,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:36,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:03:36,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:36,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:03:36,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:36,204 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 02:03:36,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:03:36,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842017523] [2023-12-21 02:03:36,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842017523] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:03:36,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:03:36,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2023-12-21 02:03:36,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658100769] [2023-12-21 02:03:36,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:03:36,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-12-21 02:03:36,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:03:36,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-12-21 02:03:36,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2023-12-21 02:03:36,206 INFO L87 Difference]: Start difference. First operand 821 states and 1048 transitions. Second operand has 21 states, 20 states have (on average 2.45) internal successors, (49), 21 states have internal predecessors, (49), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2023-12-21 02:03:39,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:03:39,478 INFO L93 Difference]: Finished difference Result 1579 states and 2011 transitions. [2023-12-21 02:03:39,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-12-21 02:03:39,479 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 2.45) internal successors, (49), 21 states have internal predecessors, (49), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 116 [2023-12-21 02:03:39,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:03:39,482 INFO L225 Difference]: With dead ends: 1579 [2023-12-21 02:03:39,482 INFO L226 Difference]: Without dead ends: 1239 [2023-12-21 02:03:39,483 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 446 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=402, Invalid=1950, Unknown=0, NotChecked=0, Total=2352 [2023-12-21 02:03:39,484 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 994 mSDsluCounter, 1254 mSDsCounter, 0 mSdLazyCounter, 1691 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 995 SdHoareTripleChecker+Valid, 1377 SdHoareTripleChecker+Invalid, 1738 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 1691 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-21 02:03:39,484 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [995 Valid, 1377 Invalid, 1738 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 1691 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-21 02:03:39,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1239 states. [2023-12-21 02:03:39,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1239 to 861. [2023-12-21 02:03:39,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 861 states, 788 states have (on average 1.2385786802030456) internal successors, (976), 790 states have internal predecessors, (976), 62 states have call successors, (62), 10 states have call predecessors, (62), 10 states have return successors, (62), 60 states have call predecessors, (62), 62 states have call successors, (62) [2023-12-21 02:03:39,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 861 states to 861 states and 1100 transitions. [2023-12-21 02:03:39,559 INFO L78 Accepts]: Start accepts. Automaton has 861 states and 1100 transitions. Word has length 116 [2023-12-21 02:03:39,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:03:39,559 INFO L495 AbstractCegarLoop]: Abstraction has 861 states and 1100 transitions. [2023-12-21 02:03:39,559 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 2.45) internal successors, (49), 21 states have internal predecessors, (49), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2023-12-21 02:03:39,559 INFO L276 IsEmpty]: Start isEmpty. Operand 861 states and 1100 transitions. [2023-12-21 02:03:39,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-12-21 02:03:39,560 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:03:39,560 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 02:03:39,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-12-21 02:03:39,560 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:03:39,561 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:03:39,561 INFO L85 PathProgramCache]: Analyzing trace with hash -1892399136, now seen corresponding path program 1 times [2023-12-21 02:03:39,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:03:39,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428198940] [2023-12-21 02:03:39,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:03:39,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:03:39,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:40,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:03:40,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:40,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:03:40,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:40,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:03:40,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:40,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:03:40,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:40,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:03:40,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:40,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:03:40,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:40,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:03:40,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:40,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:03:40,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:40,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:03:40,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:40,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:03:40,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:40,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:03:40,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:40,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:03:40,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:40,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:03:40,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:40,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:03:40,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:03:40,209 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 02:03:40,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:03:40,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428198940] [2023-12-21 02:03:40,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428198940] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:03:40,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:03:40,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-12-21 02:03:40,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144921823] [2023-12-21 02:03:40,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:03:40,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-21 02:03:40,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:03:40,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-21 02:03:40,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2023-12-21 02:03:40,211 INFO L87 Difference]: Start difference. First operand 861 states and 1100 transitions. Second operand has 13 states, 13 states have (on average 3.769230769230769) internal successors, (49), 13 states have internal predecessors, (49), 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 02:03:41,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:03:41,113 INFO L93 Difference]: Finished difference Result 1627 states and 2084 transitions. [2023-12-21 02:03:41,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-21 02:03:41,113 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.769230769230769) internal successors, (49), 13 states have internal predecessors, (49), 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 116 [2023-12-21 02:03:41,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:03:41,117 INFO L225 Difference]: With dead ends: 1627 [2023-12-21 02:03:41,117 INFO L226 Difference]: Without dead ends: 1267 [2023-12-21 02:03:41,118 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=170, Invalid=642, Unknown=0, NotChecked=0, Total=812 [2023-12-21 02:03:41,119 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 345 mSDsluCounter, 872 mSDsCounter, 0 mSdLazyCounter, 744 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 345 SdHoareTripleChecker+Valid, 987 SdHoareTripleChecker+Invalid, 751 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 744 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-21 02:03:41,119 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [345 Valid, 987 Invalid, 751 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 744 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-21 02:03:41,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1267 states. [2023-12-21 02:03:41,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1267 to 933. [2023-12-21 02:03:41,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 933 states, 860 states have (on average 1.2395348837209301) internal successors, (1066), 862 states have internal predecessors, (1066), 62 states have call successors, (62), 10 states have call predecessors, (62), 10 states have return successors, (62), 60 states have call predecessors, (62), 62 states have call successors, (62) [2023-12-21 02:03:41,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 933 states to 933 states and 1190 transitions. [2023-12-21 02:03:41,195 INFO L78 Accepts]: Start accepts. Automaton has 933 states and 1190 transitions. Word has length 116 [2023-12-21 02:03:41,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:03:41,195 INFO L495 AbstractCegarLoop]: Abstraction has 933 states and 1190 transitions. [2023-12-21 02:03:41,195 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.769230769230769) internal successors, (49), 13 states have internal predecessors, (49), 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 02:03:41,195 INFO L276 IsEmpty]: Start isEmpty. Operand 933 states and 1190 transitions. [2023-12-21 02:03:41,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-12-21 02:03:41,196 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:03:41,196 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 02:03:41,196 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-12-21 02:03:41,197 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:03:41,197 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:03:41,197 INFO L85 PathProgramCache]: Analyzing trace with hash 767820517, now seen corresponding path program 1 times [2023-12-21 02:03:41,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:03:41,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468203860] [2023-12-21 02:03:41,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:03:41,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:03:41,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:54,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:04:54,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:54,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:04:54,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:54,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:04:54,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:54,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:04:54,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:54,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:04:54,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:54,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:04:54,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:54,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:04:54,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:54,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:04:54,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:54,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:04:54,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:54,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:04:54,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:54,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:04:54,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:54,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:04:54,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:54,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:04:54,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:54,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:04:54,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:54,401 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 9 proven. 30 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2023-12-21 02:04:54,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:04:54,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468203860] [2023-12-21 02:04:54,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468203860] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 02:04:54,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1221384889] [2023-12-21 02:04:54,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:04:54,401 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:04:54,402 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:04:54,418 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 02:04:54,423 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 02:04:54,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:54,601 INFO L262 TraceCheckSpWp]: Trace formula consists of 444 conjuncts, 21 conjunts are in the unsatisfiable core [2023-12-21 02:04:54,625 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:04:54,669 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2023-12-21 02:04:54,727 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 58 treesize of output 46 [2023-12-21 02:04:54,763 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2023-12-21 02:04:54,764 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 02:04:54,842 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 02:04:54,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1221384889] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-21 02:04:54,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-12-21 02:04:54,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [17, 9] total 19 [2023-12-21 02:04:54,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812665509] [2023-12-21 02:04:54,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:04:54,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 02:04:54,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:04:54,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 02:04:54,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=300, Unknown=0, NotChecked=0, Total=342 [2023-12-21 02:04:54,844 INFO L87 Difference]: Start difference. First operand 933 states and 1190 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 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 02:04:55,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:04:55,127 INFO L93 Difference]: Finished difference Result 1648 states and 2116 transitions. [2023-12-21 02:04:55,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-21 02:04:55,128 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 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 117 [2023-12-21 02:04:55,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:04:55,131 INFO L225 Difference]: With dead ends: 1648 [2023-12-21 02:04:55,131 INFO L226 Difference]: Without dead ends: 1251 [2023-12-21 02:04:55,132 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 283 GetRequests, 260 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=70, Invalid=436, Unknown=0, NotChecked=0, Total=506 [2023-12-21 02:04:55,133 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 77 mSDsluCounter, 572 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 704 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 02:04:55,133 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 704 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 02:04:55,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1251 states. [2023-12-21 02:04:55,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1251 to 850. [2023-12-21 02:04:55,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 850 states, 805 states have (on average 1.2583850931677019) internal successors, (1013), 806 states have internal predecessors, (1013), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2023-12-21 02:04:55,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 850 states to 850 states and 1089 transitions. [2023-12-21 02:04:55,190 INFO L78 Accepts]: Start accepts. Automaton has 850 states and 1089 transitions. Word has length 117 [2023-12-21 02:04:55,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:04:55,190 INFO L495 AbstractCegarLoop]: Abstraction has 850 states and 1089 transitions. [2023-12-21 02:04:55,190 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 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 02:04:55,190 INFO L276 IsEmpty]: Start isEmpty. Operand 850 states and 1089 transitions. [2023-12-21 02:04:55,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-21 02:04:55,191 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:04:55,191 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 02:04:55,217 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 02:04:55,400 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,SelfDestructingSolverStorable31 [2023-12-21 02:04:55,401 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:04:55,401 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:04:55,401 INFO L85 PathProgramCache]: Analyzing trace with hash 786331949, now seen corresponding path program 1 times [2023-12-21 02:04:55,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:04:55,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840425292] [2023-12-21 02:04:55,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:04:55,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:04:55,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:55,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:04:55,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:55,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:04:55,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:55,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:04:55,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:55,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:04:55,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:55,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:04:55,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:55,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:04:55,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:55,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:04:55,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:55,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:04:55,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:55,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:04:55,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:55,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:04:55,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:55,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:04:55,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:55,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:04:55,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:55,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:04:55,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:55,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:04:55,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:55,894 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 02:04:55,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:04:55,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840425292] [2023-12-21 02:04:55,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840425292] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:04:55,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:04:55,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-21 02:04:55,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973345998] [2023-12-21 02:04:55,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:04:55,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-21 02:04:55,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:04:55,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-21 02:04:55,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-12-21 02:04:55,895 INFO L87 Difference]: Start difference. First operand 850 states and 1089 transitions. Second operand has 10 states, 10 states have (on average 5.1) internal successors, (51), 10 states have internal predecessors, (51), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-21 02:04:56,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:04:56,192 INFO L93 Difference]: Finished difference Result 992 states and 1266 transitions. [2023-12-21 02:04:56,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-21 02:04:56,203 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.1) internal successors, (51), 10 states have internal predecessors, (51), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 118 [2023-12-21 02:04:56,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:04:56,206 INFO L225 Difference]: With dead ends: 992 [2023-12-21 02:04:56,206 INFO L226 Difference]: Without dead ends: 990 [2023-12-21 02:04:56,206 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2023-12-21 02:04:56,207 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 367 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 367 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 02:04:56,207 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [367 Valid, 298 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 02:04:56,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 990 states. [2023-12-21 02:04:56,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 990 to 715. [2023-12-21 02:04:56,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 715 states, 670 states have (on average 1.2582089552238807) internal successors, (843), 671 states have internal predecessors, (843), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2023-12-21 02:04:56,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 715 states to 715 states and 919 transitions. [2023-12-21 02:04:56,279 INFO L78 Accepts]: Start accepts. Automaton has 715 states and 919 transitions. Word has length 118 [2023-12-21 02:04:56,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:04:56,279 INFO L495 AbstractCegarLoop]: Abstraction has 715 states and 919 transitions. [2023-12-21 02:04:56,279 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.1) internal successors, (51), 10 states have internal predecessors, (51), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-21 02:04:56,279 INFO L276 IsEmpty]: Start isEmpty. Operand 715 states and 919 transitions. [2023-12-21 02:04:56,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-21 02:04:56,280 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:04:56,280 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 02:04:56,280 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-12-21 02:04:56,280 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:04:56,280 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:04:56,280 INFO L85 PathProgramCache]: Analyzing trace with hash -1281931894, now seen corresponding path program 1 times [2023-12-21 02:04:56,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:04:56,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669940621] [2023-12-21 02:04:56,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:04:56,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:04:56,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:57,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:04:57,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:57,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:04:57,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:57,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:04:57,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:57,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:04:57,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:57,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:04:57,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:57,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:04:57,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:57,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:04:57,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:57,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:04:57,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:57,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:04:57,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:57,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:04:57,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:57,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:04:57,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:57,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:04:57,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:57,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:04:57,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:57,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:04:57,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:57,110 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 02:04:57,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:04:57,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669940621] [2023-12-21 02:04:57,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669940621] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:04:57,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:04:57,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-12-21 02:04:57,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131966170] [2023-12-21 02:04:57,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:04:57,111 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-21 02:04:57,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:04:57,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-21 02:04:57,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2023-12-21 02:04:57,112 INFO L87 Difference]: Start difference. First operand 715 states and 919 transitions. Second operand has 14 states, 14 states have (on average 3.642857142857143) internal successors, (51), 14 states have internal predecessors, (51), 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 02:04:58,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:04:58,389 INFO L93 Difference]: Finished difference Result 1732 states and 2209 transitions. [2023-12-21 02:04:58,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-21 02:04:58,415 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.642857142857143) internal successors, (51), 14 states have internal predecessors, (51), 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 118 [2023-12-21 02:04:58,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:04:58,418 INFO L225 Difference]: With dead ends: 1732 [2023-12-21 02:04:58,418 INFO L226 Difference]: Without dead ends: 1256 [2023-12-21 02:04:58,419 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=99, Invalid=407, Unknown=0, NotChecked=0, Total=506 [2023-12-21 02:04:58,419 INFO L413 NwaCegarLoop]: 131 mSDtfsCounter, 494 mSDsluCounter, 945 mSDsCounter, 0 mSdLazyCounter, 1086 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 494 SdHoareTripleChecker+Valid, 1076 SdHoareTripleChecker+Invalid, 1108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1086 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-21 02:04:58,419 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [494 Valid, 1076 Invalid, 1108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1086 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-21 02:04:58,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1256 states. [2023-12-21 02:04:58,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1256 to 745. [2023-12-21 02:04:58,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 745 states, 700 states have (on average 1.2614285714285713) internal successors, (883), 701 states have internal predecessors, (883), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2023-12-21 02:04:58,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 745 states to 745 states and 959 transitions. [2023-12-21 02:04:58,474 INFO L78 Accepts]: Start accepts. Automaton has 745 states and 959 transitions. Word has length 118 [2023-12-21 02:04:58,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:04:58,475 INFO L495 AbstractCegarLoop]: Abstraction has 745 states and 959 transitions. [2023-12-21 02:04:58,475 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.642857142857143) internal successors, (51), 14 states have internal predecessors, (51), 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 02:04:58,475 INFO L276 IsEmpty]: Start isEmpty. Operand 745 states and 959 transitions. [2023-12-21 02:04:58,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-21 02:04:58,475 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:04:58,475 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 02:04:58,476 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-12-21 02:04:58,476 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:04:58,476 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:04:58,476 INFO L85 PathProgramCache]: Analyzing trace with hash -1001037562, now seen corresponding path program 1 times [2023-12-21 02:04:58,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:04:58,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139033361] [2023-12-21 02:04:58,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:04:58,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:04:58,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:59,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:04:59,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:59,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:04:59,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:59,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:04:59,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:59,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:04:59,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:59,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:04:59,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:59,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:04:59,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:59,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:04:59,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:59,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:04:59,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:59,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:04:59,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:59,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:04:59,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:59,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:04:59,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:59,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:04:59,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:59,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:04:59,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:59,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:04:59,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:59,114 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 02:04:59,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:04:59,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139033361] [2023-12-21 02:04:59,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139033361] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:04:59,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:04:59,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-21 02:04:59,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541721801] [2023-12-21 02:04:59,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:04:59,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-21 02:04:59,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:04:59,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-21 02:04:59,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-12-21 02:04:59,116 INFO L87 Difference]: Start difference. First operand 745 states and 959 transitions. Second operand has 10 states, 10 states have (on average 5.1) internal successors, (51), 10 states have internal predecessors, (51), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-21 02:04:59,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:04:59,693 INFO L93 Difference]: Finished difference Result 1856 states and 2367 transitions. [2023-12-21 02:04:59,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-21 02:04:59,693 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.1) internal successors, (51), 10 states have internal predecessors, (51), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 118 [2023-12-21 02:04:59,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:04:59,697 INFO L225 Difference]: With dead ends: 1856 [2023-12-21 02:04:59,697 INFO L226 Difference]: Without dead ends: 1338 [2023-12-21 02:04:59,699 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2023-12-21 02:04:59,699 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 396 mSDsluCounter, 403 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 396 SdHoareTripleChecker+Valid, 516 SdHoareTripleChecker+Invalid, 457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 02:04:59,699 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [396 Valid, 516 Invalid, 457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 446 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 02:04:59,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1338 states. [2023-12-21 02:04:59,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1338 to 829. [2023-12-21 02:04:59,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 829 states, 784 states have (on average 1.2665816326530612) internal successors, (993), 785 states have internal predecessors, (993), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2023-12-21 02:04:59,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 829 states to 829 states and 1069 transitions. [2023-12-21 02:04:59,753 INFO L78 Accepts]: Start accepts. Automaton has 829 states and 1069 transitions. Word has length 118 [2023-12-21 02:04:59,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:04:59,753 INFO L495 AbstractCegarLoop]: Abstraction has 829 states and 1069 transitions. [2023-12-21 02:04:59,753 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.1) internal successors, (51), 10 states have internal predecessors, (51), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-21 02:04:59,753 INFO L276 IsEmpty]: Start isEmpty. Operand 829 states and 1069 transitions. [2023-12-21 02:04:59,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-21 02:04:59,754 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:04:59,754 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 02:04:59,754 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2023-12-21 02:04:59,754 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:04:59,754 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:04:59,754 INFO L85 PathProgramCache]: Analyzing trace with hash -2022105916, now seen corresponding path program 1 times [2023-12-21 02:04:59,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:04:59,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482691141] [2023-12-21 02:04:59,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:04:59,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:04:59,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:59,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:04:59,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:59,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:04:59,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:59,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:04:59,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:59,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:04:59,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:59,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:04:59,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:59,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:04:59,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:59,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:04:59,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:59,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:04:59,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:59,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:04:59,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:59,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:04:59,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:59,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:04:59,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:59,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:04:59,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:59,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:04:59,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:59,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:04:59,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:04:59,883 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 02:04:59,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:04:59,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482691141] [2023-12-21 02:04:59,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482691141] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:04:59,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:04:59,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 02:04:59,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939459095] [2023-12-21 02:04:59,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:04:59,883 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 02:04:59,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:04:59,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 02:04:59,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 02:04:59,884 INFO L87 Difference]: Start difference. First operand 829 states and 1069 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 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 02:05:00,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:05:00,093 INFO L93 Difference]: Finished difference Result 2072 states and 2628 transitions. [2023-12-21 02:05:00,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 02:05:00,108 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 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 118 [2023-12-21 02:05:00,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:05:00,112 INFO L225 Difference]: With dead ends: 2072 [2023-12-21 02:05:00,112 INFO L226 Difference]: Without dead ends: 1505 [2023-12-21 02:05:00,112 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 02:05:00,113 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 116 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 439 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 02:05:00,113 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 439 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 02:05:00,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1505 states. [2023-12-21 02:05:00,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1505 to 861. [2023-12-21 02:05:00,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 861 states, 816 states have (on average 1.2806372549019607) internal successors, (1045), 817 states have internal predecessors, (1045), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2023-12-21 02:05:00,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 861 states to 861 states and 1121 transitions. [2023-12-21 02:05:00,174 INFO L78 Accepts]: Start accepts. Automaton has 861 states and 1121 transitions. Word has length 118 [2023-12-21 02:05:00,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:05:00,174 INFO L495 AbstractCegarLoop]: Abstraction has 861 states and 1121 transitions. [2023-12-21 02:05:00,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 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 02:05:00,174 INFO L276 IsEmpty]: Start isEmpty. Operand 861 states and 1121 transitions. [2023-12-21 02:05:00,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-21 02:05:00,175 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:05:00,175 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 02:05:00,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2023-12-21 02:05:00,175 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:05:00,175 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:05:00,175 INFO L85 PathProgramCache]: Analyzing trace with hash 1261744130, now seen corresponding path program 1 times [2023-12-21 02:05:00,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:05:00,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692309677] [2023-12-21 02:05:00,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:05:00,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:05:00,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:00,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:05:00,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:00,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:05:00,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:00,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:05:00,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:00,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:05:00,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:00,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:05:00,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:00,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:05:00,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:00,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:05:00,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:00,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:05:00,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:00,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:05:00,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:00,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:05:00,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:00,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:05:00,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:00,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:05:00,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:00,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:05:00,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:00,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:05:00,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:00,511 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 02:05:00,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:05:00,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692309677] [2023-12-21 02:05:00,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692309677] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:05:00,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:05:00,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 02:05:00,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557288924] [2023-12-21 02:05:00,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:05:00,513 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 02:05:00,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:05:00,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 02:05:00,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-12-21 02:05:00,513 INFO L87 Difference]: Start difference. First operand 861 states and 1121 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 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 02:05:00,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:05:00,895 INFO L93 Difference]: Finished difference Result 2027 states and 2603 transitions. [2023-12-21 02:05:00,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-21 02:05:00,895 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 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 118 [2023-12-21 02:05:00,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:05:00,898 INFO L225 Difference]: With dead ends: 2027 [2023-12-21 02:05:00,898 INFO L226 Difference]: Without dead ends: 1412 [2023-12-21 02:05:00,899 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2023-12-21 02:05:00,900 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 232 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 02:05:00,900 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [232 Valid, 416 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 02:05:00,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1412 states. [2023-12-21 02:05:00,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1412 to 945. [2023-12-21 02:05:00,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 945 states, 900 states have (on average 1.2677777777777777) internal successors, (1141), 901 states have internal predecessors, (1141), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2023-12-21 02:05:00,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 945 states to 945 states and 1217 transitions. [2023-12-21 02:05:00,956 INFO L78 Accepts]: Start accepts. Automaton has 945 states and 1217 transitions. Word has length 118 [2023-12-21 02:05:00,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:05:00,957 INFO L495 AbstractCegarLoop]: Abstraction has 945 states and 1217 transitions. [2023-12-21 02:05:00,957 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 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 02:05:00,957 INFO L276 IsEmpty]: Start isEmpty. Operand 945 states and 1217 transitions. [2023-12-21 02:05:00,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-21 02:05:00,957 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:05:00,958 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 02:05:00,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2023-12-21 02:05:00,958 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:05:00,958 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:05:00,958 INFO L85 PathProgramCache]: Analyzing trace with hash -1192876854, now seen corresponding path program 1 times [2023-12-21 02:05:00,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:05:00,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740467129] [2023-12-21 02:05:00,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:05:00,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:05:01,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:01,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:05:01,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:01,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:05:01,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:01,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:05:01,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:01,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:05:01,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:01,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:05:01,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:02,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:05:02,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:02,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:05:02,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:02,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:05:02,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:02,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:05:02,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:02,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:05:02,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:02,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:05:02,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:02,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:05:02,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:02,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:05:02,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:02,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:05:02,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:02,025 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 02:05:02,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:05:02,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740467129] [2023-12-21 02:05:02,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740467129] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:05:02,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:05:02,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-12-21 02:05:02,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157099499] [2023-12-21 02:05:02,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:05:02,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-21 02:05:02,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:05:02,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-21 02:05:02,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2023-12-21 02:05:02,026 INFO L87 Difference]: Start difference. First operand 945 states and 1217 transitions. Second operand has 13 states, 12 states have (on average 4.25) 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), 3 states have call predecessors, (14), 4 states have call successors, (14) [2023-12-21 02:05:02,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:05:02,825 INFO L93 Difference]: Finished difference Result 1810 states and 2344 transitions. [2023-12-21 02:05:02,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-21 02:05:02,826 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 4.25) 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), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 118 [2023-12-21 02:05:02,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:05:02,856 INFO L225 Difference]: With dead ends: 1810 [2023-12-21 02:05:02,856 INFO L226 Difference]: Without dead ends: 1172 [2023-12-21 02:05:02,857 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=97, Invalid=245, Unknown=0, NotChecked=0, Total=342 [2023-12-21 02:05:02,858 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 310 mSDsluCounter, 474 mSDsCounter, 0 mSdLazyCounter, 658 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 311 SdHoareTripleChecker+Valid, 586 SdHoareTripleChecker+Invalid, 678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 658 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-21 02:05:02,858 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [311 Valid, 586 Invalid, 678 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 658 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-21 02:05:02,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1172 states. [2023-12-21 02:05:02,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1172 to 953. [2023-12-21 02:05:02,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 953 states, 908 states have (on average 1.2654185022026432) internal successors, (1149), 909 states have internal predecessors, (1149), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2023-12-21 02:05:02,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 953 states to 953 states and 1225 transitions. [2023-12-21 02:05:02,963 INFO L78 Accepts]: Start accepts. Automaton has 953 states and 1225 transitions. Word has length 118 [2023-12-21 02:05:02,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:05:02,963 INFO L495 AbstractCegarLoop]: Abstraction has 953 states and 1225 transitions. [2023-12-21 02:05:02,963 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 4.25) 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), 3 states have call predecessors, (14), 4 states have call successors, (14) [2023-12-21 02:05:02,963 INFO L276 IsEmpty]: Start isEmpty. Operand 953 states and 1225 transitions. [2023-12-21 02:05:02,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-21 02:05:02,964 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:05:02,964 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 02:05:02,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2023-12-21 02:05:02,964 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:05:02,965 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:05:02,965 INFO L85 PathProgramCache]: Analyzing trace with hash -1259299640, now seen corresponding path program 1 times [2023-12-21 02:05:02,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:05:02,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305935398] [2023-12-21 02:05:02,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:05:02,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:05:02,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:03,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:05:03,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:03,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:05:03,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:03,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:05:03,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:03,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:05:03,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:03,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:05:03,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:03,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:05:03,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:03,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:05:03,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:03,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:05:03,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:03,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:05:03,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:03,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:05:03,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:03,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:05:03,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:03,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:05:03,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:03,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:05:03,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:03,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:05:03,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:03,386 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 02:05:03,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:05:03,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305935398] [2023-12-21 02:05:03,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305935398] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:05:03,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:05:03,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-21 02:05:03,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674947933] [2023-12-21 02:05:03,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:05:03,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 02:05:03,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:05:03,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 02:05:03,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-21 02:05:03,388 INFO L87 Difference]: Start difference. First operand 953 states and 1225 transitions. Second operand has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-21 02:05:03,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:05:03,809 INFO L93 Difference]: Finished difference Result 1880 states and 2407 transitions. [2023-12-21 02:05:03,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 02:05:03,810 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 118 [2023-12-21 02:05:03,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:05:03,812 INFO L225 Difference]: With dead ends: 1880 [2023-12-21 02:05:03,812 INFO L226 Difference]: Without dead ends: 1210 [2023-12-21 02:05:03,813 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2023-12-21 02:05:03,813 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 286 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 286 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 02:05:03,813 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [286 Valid, 326 Invalid, 384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 360 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 02:05:03,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1210 states. [2023-12-21 02:05:03,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1210 to 949. [2023-12-21 02:05:03,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 949 states, 904 states have (on average 1.2433628318584071) internal successors, (1124), 905 states have internal predecessors, (1124), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2023-12-21 02:05:03,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 949 states to 949 states and 1200 transitions. [2023-12-21 02:05:03,874 INFO L78 Accepts]: Start accepts. Automaton has 949 states and 1200 transitions. Word has length 118 [2023-12-21 02:05:03,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:05:03,874 INFO L495 AbstractCegarLoop]: Abstraction has 949 states and 1200 transitions. [2023-12-21 02:05:03,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-21 02:05:03,874 INFO L276 IsEmpty]: Start isEmpty. Operand 949 states and 1200 transitions. [2023-12-21 02:05:03,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-21 02:05:03,875 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:05:03,875 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 02:05:03,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2023-12-21 02:05:03,875 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:05:03,876 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:05:03,876 INFO L85 PathProgramCache]: Analyzing trace with hash 1003482052, now seen corresponding path program 1 times [2023-12-21 02:05:03,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:05:03,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042588676] [2023-12-21 02:05:03,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:05:03,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:05:03,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:05,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:05:05,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:05,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:05:05,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:05,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:05:05,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:05,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:05:05,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:05,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:05:05,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:05,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:05:05,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:05,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:05:05,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:05,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:05:05,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:05,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:05:05,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:05,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:05:05,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:05,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:05:05,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:05,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:05:05,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:05,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:05:05,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:05,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:05:05,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:05,650 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 02:05:05,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:05:05,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042588676] [2023-12-21 02:05:05,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042588676] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:05:05,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:05:05,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2023-12-21 02:05:05,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027760561] [2023-12-21 02:05:05,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:05:05,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-12-21 02:05:05,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:05:05,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-12-21 02:05:05,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2023-12-21 02:05:05,651 INFO L87 Difference]: Start difference. First operand 949 states and 1200 transitions. Second operand has 20 states, 18 states have (on average 2.8333333333333335) internal successors, (51), 20 states have internal predecessors, (51), 6 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 6 states have call successors, (14) [2023-12-21 02:05:08,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:05:08,690 INFO L93 Difference]: Finished difference Result 1764 states and 2217 transitions. [2023-12-21 02:05:08,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-21 02:05:08,691 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 18 states have (on average 2.8333333333333335) internal successors, (51), 20 states have internal predecessors, (51), 6 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 6 states have call successors, (14) Word has length 118 [2023-12-21 02:05:08,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:05:08,693 INFO L225 Difference]: With dead ends: 1764 [2023-12-21 02:05:08,693 INFO L226 Difference]: Without dead ends: 1117 [2023-12-21 02:05:08,694 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 180 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=204, Invalid=918, Unknown=0, NotChecked=0, Total=1122 [2023-12-21 02:05:08,695 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 731 mSDsluCounter, 783 mSDsCounter, 0 mSdLazyCounter, 1395 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 731 SdHoareTripleChecker+Valid, 866 SdHoareTripleChecker+Invalid, 1493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 1395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-12-21 02:05:08,695 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [731 Valid, 866 Invalid, 1493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 1395 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-12-21 02:05:08,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1117 states. [2023-12-21 02:05:08,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1117 to 945. [2023-12-21 02:05:08,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 945 states, 900 states have (on average 1.2422222222222221) internal successors, (1118), 901 states have internal predecessors, (1118), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2023-12-21 02:05:08,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 945 states to 945 states and 1194 transitions. [2023-12-21 02:05:08,750 INFO L78 Accepts]: Start accepts. Automaton has 945 states and 1194 transitions. Word has length 118 [2023-12-21 02:05:08,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:05:08,750 INFO L495 AbstractCegarLoop]: Abstraction has 945 states and 1194 transitions. [2023-12-21 02:05:08,750 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 18 states have (on average 2.8333333333333335) internal successors, (51), 20 states have internal predecessors, (51), 6 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 6 states have call successors, (14) [2023-12-21 02:05:08,750 INFO L276 IsEmpty]: Start isEmpty. Operand 945 states and 1194 transitions. [2023-12-21 02:05:08,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-21 02:05:08,751 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:05:08,751 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 02:05:08,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2023-12-21 02:05:08,751 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:05:08,751 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:05:08,752 INFO L85 PathProgramCache]: Analyzing trace with hash 1284376384, now seen corresponding path program 1 times [2023-12-21 02:05:08,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:05:08,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446443228] [2023-12-21 02:05:08,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:05:08,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:05:08,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:09,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:05:09,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:09,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:05:09,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:09,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:05:09,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:09,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:05:09,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:09,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:05:09,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:09,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:05:09,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:09,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:05:09,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:09,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:05:09,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:09,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:05:09,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:09,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:05:09,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:09,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:05:09,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:09,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:05:09,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:09,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:05:09,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:09,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:05:09,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:09,574 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 02:05:09,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:05:09,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446443228] [2023-12-21 02:05:09,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446443228] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:05:09,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:05:09,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-21 02:05:09,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988801388] [2023-12-21 02:05:09,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:05:09,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-21 02:05:09,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:05:09,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-21 02:05:09,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2023-12-21 02:05:09,575 INFO L87 Difference]: Start difference. First operand 945 states and 1194 transitions. Second operand has 11 states, 11 states have (on average 4.636363636363637) internal successors, (51), 11 states have internal predecessors, (51), 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 02:05:10,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:05:10,505 INFO L93 Difference]: Finished difference Result 1825 states and 2298 transitions. [2023-12-21 02:05:10,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 02:05:10,505 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.636363636363637) internal successors, (51), 11 states have internal predecessors, (51), 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 118 [2023-12-21 02:05:10,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:05:10,507 INFO L225 Difference]: With dead ends: 1825 [2023-12-21 02:05:10,507 INFO L226 Difference]: Without dead ends: 1174 [2023-12-21 02:05:10,508 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=97, Invalid=365, Unknown=0, NotChecked=0, Total=462 [2023-12-21 02:05:10,508 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 243 mSDsluCounter, 631 mSDsCounter, 0 mSdLazyCounter, 674 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 243 SdHoareTripleChecker+Valid, 724 SdHoareTripleChecker+Invalid, 735 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 674 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-21 02:05:10,508 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [243 Valid, 724 Invalid, 735 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 674 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-21 02:05:10,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1174 states. [2023-12-21 02:05:10,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1174 to 942. [2023-12-21 02:05:10,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 942 states, 897 states have (on average 1.2396878483835005) internal successors, (1112), 898 states have internal predecessors, (1112), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2023-12-21 02:05:10,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 942 states to 942 states and 1188 transitions. [2023-12-21 02:05:10,569 INFO L78 Accepts]: Start accepts. Automaton has 942 states and 1188 transitions. Word has length 118 [2023-12-21 02:05:10,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:05:10,569 INFO L495 AbstractCegarLoop]: Abstraction has 942 states and 1188 transitions. [2023-12-21 02:05:10,569 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.636363636363637) internal successors, (51), 11 states have internal predecessors, (51), 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 02:05:10,569 INFO L276 IsEmpty]: Start isEmpty. Operand 942 states and 1188 transitions. [2023-12-21 02:05:10,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-21 02:05:10,570 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:05:10,570 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 02:05:10,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2023-12-21 02:05:10,570 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:05:10,570 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:05:10,571 INFO L85 PathProgramCache]: Analyzing trace with hash 1161943490, now seen corresponding path program 1 times [2023-12-21 02:05:10,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:05:10,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141309727] [2023-12-21 02:05:10,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:05:10,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:05:10,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:10,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:05:10,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:10,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:05:10,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:10,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:05:10,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:10,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:05:10,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:10,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:05:10,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:10,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:05:10,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:10,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:05:10,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:10,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:05:10,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:10,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:05:10,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:10,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:05:10,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:10,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:05:10,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:10,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:05:10,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:10,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:05:10,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:10,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:05:10,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:10,698 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 02:05:10,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:05:10,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141309727] [2023-12-21 02:05:10,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141309727] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:05:10,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:05:10,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 02:05:10,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502663510] [2023-12-21 02:05:10,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:05:10,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 02:05:10,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:05:10,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 02:05:10,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 02:05:10,699 INFO L87 Difference]: Start difference. First operand 942 states and 1188 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 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 02:05:10,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:05:10,864 INFO L93 Difference]: Finished difference Result 1632 states and 2080 transitions. [2023-12-21 02:05:10,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 02:05:10,865 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 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 118 [2023-12-21 02:05:10,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:05:10,866 INFO L225 Difference]: With dead ends: 1632 [2023-12-21 02:05:10,866 INFO L226 Difference]: Without dead ends: 942 [2023-12-21 02:05:10,867 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 02:05:10,867 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 22 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 02:05:10,867 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 305 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 02:05:10,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 942 states. [2023-12-21 02:05:10,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 942 to 942. [2023-12-21 02:05:10,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 942 states, 897 states have (on average 1.2374581939799332) internal successors, (1110), 898 states have internal predecessors, (1110), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2023-12-21 02:05:10,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 942 states to 942 states and 1186 transitions. [2023-12-21 02:05:10,922 INFO L78 Accepts]: Start accepts. Automaton has 942 states and 1186 transitions. Word has length 118 [2023-12-21 02:05:10,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:05:10,922 INFO L495 AbstractCegarLoop]: Abstraction has 942 states and 1186 transitions. [2023-12-21 02:05:10,922 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 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 02:05:10,922 INFO L276 IsEmpty]: Start isEmpty. Operand 942 states and 1186 transitions. [2023-12-21 02:05:10,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-21 02:05:10,923 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:05:10,923 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 02:05:10,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2023-12-21 02:05:10,923 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:05:10,924 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:05:10,924 INFO L85 PathProgramCache]: Analyzing trace with hash 652470400, now seen corresponding path program 1 times [2023-12-21 02:05:10,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:05:10,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275806144] [2023-12-21 02:05:10,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:05:10,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:05:10,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:11,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:05:11,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:11,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:05:11,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:11,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:05:11,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:11,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:05:11,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:11,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:05:11,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:11,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:05:11,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:11,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:05:11,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:11,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:05:11,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:11,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:05:11,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:11,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:05:11,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:11,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:05:11,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:11,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:05:11,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:12,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:05:12,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:12,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:05:12,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:12,009 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 02:05:12,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:05:12,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275806144] [2023-12-21 02:05:12,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275806144] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:05:12,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:05:12,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2023-12-21 02:05:12,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028473599] [2023-12-21 02:05:12,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:05:12,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-21 02:05:12,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:05:12,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-21 02:05:12,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2023-12-21 02:05:12,012 INFO L87 Difference]: Start difference. First operand 942 states and 1186 transitions. Second operand has 18 states, 17 states have (on average 3.0) internal successors, (51), 18 states have internal predecessors, (51), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2023-12-21 02:05:13,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:05:13,333 INFO L93 Difference]: Finished difference Result 1709 states and 2157 transitions. [2023-12-21 02:05:13,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-21 02:05:13,333 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.0) internal successors, (51), 18 states have internal predecessors, (51), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 118 [2023-12-21 02:05:13,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:05:13,335 INFO L225 Difference]: With dead ends: 1709 [2023-12-21 02:05:13,335 INFO L226 Difference]: Without dead ends: 1064 [2023-12-21 02:05:13,336 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=180, Invalid=812, Unknown=0, NotChecked=0, Total=992 [2023-12-21 02:05:13,341 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 444 mSDsluCounter, 837 mSDsCounter, 0 mSdLazyCounter, 1219 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 444 SdHoareTripleChecker+Valid, 935 SdHoareTripleChecker+Invalid, 1314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 1219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-21 02:05:13,341 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [444 Valid, 935 Invalid, 1314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 1219 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-21 02:05:13,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1064 states. [2023-12-21 02:05:13,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1064 to 940. [2023-12-21 02:05:13,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 940 states, 895 states have (on average 1.2368715083798882) internal successors, (1107), 896 states have internal predecessors, (1107), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2023-12-21 02:05:13,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 940 states to 940 states and 1183 transitions. [2023-12-21 02:05:13,422 INFO L78 Accepts]: Start accepts. Automaton has 940 states and 1183 transitions. Word has length 118 [2023-12-21 02:05:13,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:05:13,424 INFO L495 AbstractCegarLoop]: Abstraction has 940 states and 1183 transitions. [2023-12-21 02:05:13,424 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.0) internal successors, (51), 18 states have internal predecessors, (51), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2023-12-21 02:05:13,424 INFO L276 IsEmpty]: Start isEmpty. Operand 940 states and 1183 transitions. [2023-12-21 02:05:13,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-12-21 02:05:13,425 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:05:13,425 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 02:05:13,425 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2023-12-21 02:05:13,425 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:05:13,425 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:05:13,425 INFO L85 PathProgramCache]: Analyzing trace with hash 1224977264, now seen corresponding path program 1 times [2023-12-21 02:05:13,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:05:13,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891146292] [2023-12-21 02:05:13,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:05:13,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:05:13,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:15,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:05:15,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:15,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:05:15,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:15,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:05:15,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:15,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:05:15,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:15,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:05:15,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:15,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:05:15,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:15,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:05:15,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:15,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:05:15,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:15,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:05:15,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:15,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:05:15,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:15,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:05:15,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:15,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:05:15,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:15,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:05:15,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:15,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:05:15,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:15,227 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 02:05:15,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:05:15,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891146292] [2023-12-21 02:05:15,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891146292] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:05:15,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:05:15,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2023-12-21 02:05:15,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236629423] [2023-12-21 02:05:15,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:05:15,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-21 02:05:15,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:05:15,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-21 02:05:15,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=566, Unknown=0, NotChecked=0, Total=650 [2023-12-21 02:05:15,229 INFO L87 Difference]: Start difference. First operand 940 states and 1183 transitions. Second operand has 26 states, 24 states have (on average 2.2083333333333335) internal successors, (53), 26 states have internal predecessors, (53), 7 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 7 states have call successors, (14) [2023-12-21 02:05:18,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:05:18,011 INFO L93 Difference]: Finished difference Result 2200 states and 2758 transitions. [2023-12-21 02:05:18,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-12-21 02:05:18,012 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 24 states have (on average 2.2083333333333335) internal successors, (53), 26 states have internal predecessors, (53), 7 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 7 states have call successors, (14) Word has length 120 [2023-12-21 02:05:18,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:05:18,014 INFO L225 Difference]: With dead ends: 2200 [2023-12-21 02:05:18,014 INFO L226 Difference]: Without dead ends: 1589 [2023-12-21 02:05:18,015 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 36 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 526 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=556, Invalid=2200, Unknown=0, NotChecked=0, Total=2756 [2023-12-21 02:05:18,016 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 793 mSDsluCounter, 1300 mSDsCounter, 0 mSdLazyCounter, 1813 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 794 SdHoareTripleChecker+Valid, 1417 SdHoareTripleChecker+Invalid, 1864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 1813 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-21 02:05:18,016 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [794 Valid, 1417 Invalid, 1864 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 1813 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-21 02:05:18,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1589 states. [2023-12-21 02:05:18,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1589 to 1038. [2023-12-21 02:05:18,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1038 states, 993 states have (on average 1.2396777442094662) internal successors, (1231), 994 states have internal predecessors, (1231), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2023-12-21 02:05:18,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1038 states to 1038 states and 1307 transitions. [2023-12-21 02:05:18,078 INFO L78 Accepts]: Start accepts. Automaton has 1038 states and 1307 transitions. Word has length 120 [2023-12-21 02:05:18,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:05:18,078 INFO L495 AbstractCegarLoop]: Abstraction has 1038 states and 1307 transitions. [2023-12-21 02:05:18,078 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 24 states have (on average 2.2083333333333335) internal successors, (53), 26 states have internal predecessors, (53), 7 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 7 states have call successors, (14) [2023-12-21 02:05:18,078 INFO L276 IsEmpty]: Start isEmpty. Operand 1038 states and 1307 transitions. [2023-12-21 02:05:18,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-12-21 02:05:18,079 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:05:18,079 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 02:05:18,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2023-12-21 02:05:18,079 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:05:18,080 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:05:18,080 INFO L85 PathProgramCache]: Analyzing trace with hash 213860014, now seen corresponding path program 1 times [2023-12-21 02:05:18,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:05:18,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166752198] [2023-12-21 02:05:18,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:05:18,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:05:18,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:18,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:05:18,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:18,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:05:18,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:18,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:05:18,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:18,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:05:18,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:18,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:05:18,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:18,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:05:18,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:18,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:05:18,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:18,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:05:18,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:18,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:05:18,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:18,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:05:18,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:18,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:05:18,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:18,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:05:18,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:18,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:05:18,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:18,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:05:18,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:18,221 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 02:05:18,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:05:18,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166752198] [2023-12-21 02:05:18,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166752198] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:05:18,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:05:18,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 02:05:18,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472524181] [2023-12-21 02:05:18,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:05:18,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 02:05:18,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:05:18,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 02:05:18,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 02:05:18,222 INFO L87 Difference]: Start difference. First operand 1038 states and 1307 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 02:05:18,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:05:18,401 INFO L93 Difference]: Finished difference Result 2267 states and 2825 transitions. [2023-12-21 02:05:18,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 02:05:18,402 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 02:05:18,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:05:18,403 INFO L225 Difference]: With dead ends: 2267 [2023-12-21 02:05:18,403 INFO L226 Difference]: Without dead ends: 1548 [2023-12-21 02:05:18,404 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 02:05:18,404 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 110 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 430 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 02:05:18,404 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 430 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 02:05:18,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1548 states. [2023-12-21 02:05:18,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1548 to 1032. [2023-12-21 02:05:18,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1032 states, 987 states have (on average 1.220871327254306) internal successors, (1205), 988 states have internal predecessors, (1205), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2023-12-21 02:05:18,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1032 states to 1032 states and 1281 transitions. [2023-12-21 02:05:18,464 INFO L78 Accepts]: Start accepts. Automaton has 1032 states and 1281 transitions. Word has length 120 [2023-12-21 02:05:18,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:05:18,465 INFO L495 AbstractCegarLoop]: Abstraction has 1032 states and 1281 transitions. [2023-12-21 02:05:18,465 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 02:05:18,465 INFO L276 IsEmpty]: Start isEmpty. Operand 1032 states and 1281 transitions. [2023-12-21 02:05:18,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-12-21 02:05:18,465 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:05:18,466 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 02:05:18,466 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2023-12-21 02:05:18,466 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:05:18,466 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:05:18,466 INFO L85 PathProgramCache]: Analyzing trace with hash -1464052196, now seen corresponding path program 1 times [2023-12-21 02:05:18,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:05:18,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452638780] [2023-12-21 02:05:18,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:05:18,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:05:18,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:19,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:05:19,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:19,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:05:19,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:19,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:05:19,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:19,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:05:19,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:19,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:05:19,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:19,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:05:19,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:19,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:05:19,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:19,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:05:19,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:19,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:05:19,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:19,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:05:19,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:19,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:05:19,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:19,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:05:19,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:19,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:05:19,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:19,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:05:19,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:19,322 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 02:05:19,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:05:19,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452638780] [2023-12-21 02:05:19,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452638780] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:05:19,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:05:19,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-21 02:05:19,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992821559] [2023-12-21 02:05:19,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:05:19,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-21 02:05:19,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:05:19,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-21 02:05:19,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2023-12-21 02:05:19,323 INFO L87 Difference]: Start difference. First operand 1032 states and 1281 transitions. Second operand has 11 states, 11 states have (on average 4.818181818181818) internal successors, (53), 11 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 02:05:20,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:05:20,233 INFO L93 Difference]: Finished difference Result 1979 states and 2458 transitions. [2023-12-21 02:05:20,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-21 02:05:20,234 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.818181818181818) internal successors, (53), 11 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 02:05:20,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:05:20,235 INFO L225 Difference]: With dead ends: 1979 [2023-12-21 02:05:20,235 INFO L226 Difference]: Without dead ends: 1269 [2023-12-21 02:05:20,236 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=89, Invalid=331, Unknown=0, NotChecked=0, Total=420 [2023-12-21 02:05:20,237 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 219 mSDsluCounter, 699 mSDsCounter, 0 mSdLazyCounter, 753 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 812 SdHoareTripleChecker+Invalid, 805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 753 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-21 02:05:20,237 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 812 Invalid, 805 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 753 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-21 02:05:20,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1269 states. [2023-12-21 02:05:20,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1269 to 1032. [2023-12-21 02:05:20,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1032 states, 987 states have (on average 1.2188449848024316) internal successors, (1203), 988 states have internal predecessors, (1203), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2023-12-21 02:05:20,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1032 states to 1032 states and 1279 transitions. [2023-12-21 02:05:20,297 INFO L78 Accepts]: Start accepts. Automaton has 1032 states and 1279 transitions. Word has length 120 [2023-12-21 02:05:20,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:05:20,298 INFO L495 AbstractCegarLoop]: Abstraction has 1032 states and 1279 transitions. [2023-12-21 02:05:20,298 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.818181818181818) internal successors, (53), 11 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 02:05:20,298 INFO L276 IsEmpty]: Start isEmpty. Operand 1032 states and 1279 transitions. [2023-12-21 02:05:20,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-21 02:05:20,302 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:05:20,302 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 02:05:20,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2023-12-21 02:05:20,303 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:05:20,303 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:05:20,303 INFO L85 PathProgramCache]: Analyzing trace with hash 1588563014, now seen corresponding path program 1 times [2023-12-21 02:05:20,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:05:20,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606452920] [2023-12-21 02:05:20,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:05:20,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:05:20,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:20,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:05:20,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:20,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:05:20,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:20,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:05:20,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:20,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:05:20,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:20,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:05:20,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:20,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:05:20,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:20,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:05:20,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:20,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:05:20,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:20,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:05:20,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:20,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:05:20,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:20,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:05:20,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:20,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:05:20,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:20,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:05:20,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:20,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:05:20,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:20,463 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 02:05:20,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:05:20,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606452920] [2023-12-21 02:05:20,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606452920] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:05:20,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:05:20,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 02:05:20,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760278097] [2023-12-21 02:05:20,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:05:20,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 02:05:20,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:05:20,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 02:05:20,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 02:05:20,464 INFO L87 Difference]: Start difference. First operand 1032 states and 1279 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 02:05:20,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:05:20,611 INFO L93 Difference]: Finished difference Result 1683 states and 2114 transitions. [2023-12-21 02:05:20,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 02:05:20,612 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 02:05:20,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:05:20,613 INFO L225 Difference]: With dead ends: 1683 [2023-12-21 02:05:20,613 INFO L226 Difference]: Without dead ends: 939 [2023-12-21 02:05:20,614 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 02:05:20,614 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 16 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 313 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 02:05:20,614 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 313 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 02:05:20,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 939 states. [2023-12-21 02:05:20,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 939 to 939. [2023-12-21 02:05:20,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 939 states, 894 states have (on average 1.2170022371364653) internal successors, (1088), 895 states have internal predecessors, (1088), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2023-12-21 02:05:20,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 939 states to 939 states and 1164 transitions. [2023-12-21 02:05:20,672 INFO L78 Accepts]: Start accepts. Automaton has 939 states and 1164 transitions. Word has length 122 [2023-12-21 02:05:20,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:05:20,672 INFO L495 AbstractCegarLoop]: Abstraction has 939 states and 1164 transitions. [2023-12-21 02:05:20,672 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 02:05:20,672 INFO L276 IsEmpty]: Start isEmpty. Operand 939 states and 1164 transitions. [2023-12-21 02:05:20,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-21 02:05:20,673 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:05:20,673 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, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:05:20,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2023-12-21 02:05:20,674 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:05:20,674 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:05:20,674 INFO L85 PathProgramCache]: Analyzing trace with hash 1607361408, now seen corresponding path program 1 times [2023-12-21 02:05:20,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:05:20,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962082518] [2023-12-21 02:05:20,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:05:20,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:05:20,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:21,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:05:21,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:21,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:05:21,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:21,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:05:21,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:21,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:05:21,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:21,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:05:21,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:21,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:05:21,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:21,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:05:21,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:21,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:05:21,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:21,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:05:21,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:21,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:05:21,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:21,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:05:21,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:21,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:05:21,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:21,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:05:21,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:21,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:05:21,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:21,716 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 02:05:21,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:05:21,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962082518] [2023-12-21 02:05:21,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962082518] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:05:21,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:05:21,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-12-21 02:05:21,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006399820] [2023-12-21 02:05:21,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:05:21,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-12-21 02:05:21,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:05:21,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-12-21 02:05:21,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=305, Unknown=0, NotChecked=0, Total=342 [2023-12-21 02:05:21,717 INFO L87 Difference]: Start difference. First operand 939 states and 1164 transitions. Second operand has 19 states, 19 states have (on average 2.8947368421052633) internal successors, (55), 19 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 02:05:23,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:05:23,385 INFO L93 Difference]: Finished difference Result 1658 states and 2072 transitions. [2023-12-21 02:05:23,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-12-21 02:05:23,385 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.8947368421052633) internal successors, (55), 19 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 02:05:23,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:05:23,386 INFO L225 Difference]: With dead ends: 1658 [2023-12-21 02:05:23,387 INFO L226 Difference]: Without dead ends: 1037 [2023-12-21 02:05:23,387 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 203 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=255, Invalid=1385, Unknown=0, NotChecked=0, Total=1640 [2023-12-21 02:05:23,389 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 377 mSDsluCounter, 1040 mSDsCounter, 0 mSdLazyCounter, 1262 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 377 SdHoareTripleChecker+Valid, 1129 SdHoareTripleChecker+Invalid, 1318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 1262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-21 02:05:23,389 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [377 Valid, 1129 Invalid, 1318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 1262 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-21 02:05:23,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1037 states. [2023-12-21 02:05:23,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1037 to 927. [2023-12-21 02:05:23,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 927 states, 882 states have (on average 1.217687074829932) internal successors, (1074), 883 states have internal predecessors, (1074), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2023-12-21 02:05:23,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 927 states to 927 states and 1150 transitions. [2023-12-21 02:05:23,448 INFO L78 Accepts]: Start accepts. Automaton has 927 states and 1150 transitions. Word has length 122 [2023-12-21 02:05:23,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:05:23,448 INFO L495 AbstractCegarLoop]: Abstraction has 927 states and 1150 transitions. [2023-12-21 02:05:23,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.8947368421052633) internal successors, (55), 19 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 02:05:23,448 INFO L276 IsEmpty]: Start isEmpty. Operand 927 states and 1150 transitions. [2023-12-21 02:05:23,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2023-12-21 02:05:23,450 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:05:23,450 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:05:23,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2023-12-21 02:05:23,451 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:05:23,451 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:05:23,451 INFO L85 PathProgramCache]: Analyzing trace with hash 24946439, now seen corresponding path program 1 times [2023-12-21 02:05:23,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:05:23,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065270991] [2023-12-21 02:05:23,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:05:23,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:05:23,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:23,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:05:23,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:23,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:05:23,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:23,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:05:23,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:23,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:05:23,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:23,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:05:23,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:23,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:05:23,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:23,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:05:23,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:23,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:05:23,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:23,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:05:23,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:23,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:05:23,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:23,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:05:23,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:23,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:05:23,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:23,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:05:23,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:23,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:05:23,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:23,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:05:23,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:23,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-21 02:05:23,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:23,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-12-21 02:05:23,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:23,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-12-21 02:05:23,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:23,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-12-21 02:05:23,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:23,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-12-21 02:05:23,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:23,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2023-12-21 02:05:23,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:23,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2023-12-21 02:05:23,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:23,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-21 02:05:23,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:23,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2023-12-21 02:05:23,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:23,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2023-12-21 02:05:23,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:23,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2023-12-21 02:05:23,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:23,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-12-21 02:05:23,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:23,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2023-12-21 02:05:23,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:23,654 INFO L134 CoverageAnalysis]: Checked inductivity of 1561 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 1541 trivial. 0 not checked. [2023-12-21 02:05:23,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:05:23,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065270991] [2023-12-21 02:05:23,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1065270991] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:05:23,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:05:23,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 02:05:23,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945147864] [2023-12-21 02:05:23,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:05:23,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 02:05:23,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:05:23,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 02:05:23,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 02:05:23,655 INFO L87 Difference]: Start difference. First operand 927 states and 1150 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 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 02:05:23,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:05:23,831 INFO L93 Difference]: Finished difference Result 1558 states and 1948 transitions. [2023-12-21 02:05:23,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 02:05:23,832 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 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 217 [2023-12-21 02:05:23,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:05:23,834 INFO L225 Difference]: With dead ends: 1558 [2023-12-21 02:05:23,834 INFO L226 Difference]: Without dead ends: 937 [2023-12-21 02:05:23,835 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 02:05:23,836 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 46 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 327 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 02:05:23,839 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 327 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 02:05:23,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 937 states. [2023-12-21 02:05:23,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 937 to 873. [2023-12-21 02:05:23,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 873 states, 828 states have (on average 1.2004830917874396) internal successors, (994), 829 states have internal predecessors, (994), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2023-12-21 02:05:23,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 1070 transitions. [2023-12-21 02:05:23,898 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 1070 transitions. Word has length 217 [2023-12-21 02:05:23,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:05:23,898 INFO L495 AbstractCegarLoop]: Abstraction has 873 states and 1070 transitions. [2023-12-21 02:05:23,898 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 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 02:05:23,898 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 1070 transitions. [2023-12-21 02:05:23,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2023-12-21 02:05:23,900 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:05:23,900 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] [2023-12-21 02:05:23,900 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2023-12-21 02:05:23,900 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:05:23,900 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:05:23,900 INFO L85 PathProgramCache]: Analyzing trace with hash -1659614671, now seen corresponding path program 1 times [2023-12-21 02:05:23,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:05:23,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069402487] [2023-12-21 02:05:23,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:05:23,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:05:23,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:24,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:05:24,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:24,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:05:24,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:24,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:05:24,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:24,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:05:24,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:24,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:05:24,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:24,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:05:24,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:24,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:05:24,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:24,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:05:24,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:24,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:05:24,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:24,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:05:24,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:24,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:05:24,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:24,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:05:24,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:24,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:05:24,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:24,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:05:24,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:24,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:05:24,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:24,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-21 02:05:24,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:24,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-12-21 02:05:24,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:24,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-12-21 02:05:24,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:24,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-12-21 02:05:24,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:24,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-12-21 02:05:24,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:24,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2023-12-21 02:05:24,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:24,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2023-12-21 02:05:24,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:24,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-21 02:05:24,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:24,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2023-12-21 02:05:24,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:24,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2023-12-21 02:05:24,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:24,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2023-12-21 02:05:24,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:24,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-12-21 02:05:24,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:24,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2023-12-21 02:05:24,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:24,882 INFO L134 CoverageAnalysis]: Checked inductivity of 1563 backedges. 2 proven. 49 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2023-12-21 02:05:24,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:05:24,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069402487] [2023-12-21 02:05:24,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1069402487] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 02:05:24,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1171065335] [2023-12-21 02:05:24,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:05:24,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:05:24,883 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:05:24,883 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 02:05:24,885 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 02:05:25,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:25,144 INFO L262 TraceCheckSpWp]: Trace formula consists of 722 conjuncts, 22 conjunts are in the unsatisfiable core [2023-12-21 02:05:25,150 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:05:26,328 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-12-21 02:05:26,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:05:26,475 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 15 treesize of output 15 [2023-12-21 02:05:26,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:05:26,603 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-21 02:05:26,603 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 49 treesize of output 25 [2023-12-21 02:05:26,606 INFO L134 CoverageAnalysis]: Checked inductivity of 1563 backedges. 2 proven. 560 refuted. 0 times theorem prover too weak. 1001 trivial. 0 not checked. [2023-12-21 02:05:26,606 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 02:05:26,697 INFO L134 CoverageAnalysis]: Checked inductivity of 1563 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 1541 trivial. 0 not checked. [2023-12-21 02:05:26,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1171065335] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-21 02:05:26,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-12-21 02:05:26,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12, 6] total 16 [2023-12-21 02:05:26,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078122592] [2023-12-21 02:05:26,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:05:26,697 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 02:05:26,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:05:26,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 02:05:26,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2023-12-21 02:05:26,698 INFO L87 Difference]: Start difference. First operand 873 states and 1070 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 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 02:05:26,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:05:26,882 INFO L93 Difference]: Finished difference Result 1520 states and 1881 transitions. [2023-12-21 02:05:26,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 02:05:26,882 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 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 217 [2023-12-21 02:05:26,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:05:26,884 INFO L225 Difference]: With dead ends: 1520 [2023-12-21 02:05:26,884 INFO L226 Difference]: Without dead ends: 953 [2023-12-21 02:05:26,884 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 505 GetRequests, 488 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=256, Unknown=0, NotChecked=0, Total=306 [2023-12-21 02:05:26,885 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 43 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 02:05:26,885 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 360 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 02:05:26,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 953 states. [2023-12-21 02:05:26,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 953 to 877. [2023-12-21 02:05:26,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 877 states, 832 states have (on average 1.2067307692307692) internal successors, (1004), 833 states have internal predecessors, (1004), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2023-12-21 02:05:26,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 877 states to 877 states and 1080 transitions. [2023-12-21 02:05:26,945 INFO L78 Accepts]: Start accepts. Automaton has 877 states and 1080 transitions. Word has length 217 [2023-12-21 02:05:26,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:05:26,945 INFO L495 AbstractCegarLoop]: Abstraction has 877 states and 1080 transitions. [2023-12-21 02:05:26,946 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 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 02:05:26,946 INFO L276 IsEmpty]: Start isEmpty. Operand 877 states and 1080 transitions. [2023-12-21 02:05:26,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2023-12-21 02:05:26,947 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:05:26,947 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:05:26,956 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-21 02:05:27,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2023-12-21 02:05:27,154 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:05:27,154 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:05:27,154 INFO L85 PathProgramCache]: Analyzing trace with hash 310377415, now seen corresponding path program 1 times [2023-12-21 02:05:27,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:05:27,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910991951] [2023-12-21 02:05:27,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:05:27,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:05:27,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:27,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:05:27,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:27,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:05:27,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:27,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:05:27,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:27,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:05:27,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:27,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:05:27,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:27,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:05:27,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:27,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:05:27,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:27,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:05:27,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:27,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:05:27,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:27,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:05:27,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:27,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:05:27,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:27,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:05:27,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:27,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:05:27,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:27,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:05:27,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:27,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:05:27,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:27,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-21 02:05:27,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:27,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-12-21 02:05:27,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:27,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-12-21 02:05:27,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:27,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-12-21 02:05:27,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:27,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-12-21 02:05:27,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:27,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2023-12-21 02:05:27,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:27,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2023-12-21 02:05:27,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:27,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-21 02:05:27,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:27,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2023-12-21 02:05:27,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:27,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2023-12-21 02:05:27,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:27,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2023-12-21 02:05:27,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:27,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-12-21 02:05:27,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:27,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2023-12-21 02:05:27,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:27,980 INFO L134 CoverageAnalysis]: Checked inductivity of 1563 backedges. 3 proven. 19 refuted. 0 times theorem prover too weak. 1541 trivial. 0 not checked. [2023-12-21 02:05:27,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:05:27,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910991951] [2023-12-21 02:05:27,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910991951] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 02:05:27,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1916791965] [2023-12-21 02:05:27,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:05:27,980 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:05:27,980 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:05:27,981 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 02:05:27,982 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 02:05:28,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:28,225 INFO L262 TraceCheckSpWp]: Trace formula consists of 731 conjuncts, 33 conjunts are in the unsatisfiable core [2023-12-21 02:05:28,230 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:05:30,030 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-12-21 02:05:30,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:05:30,380 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 15 treesize of output 15 [2023-12-21 02:05:30,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:05:30,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:05:30,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:05:30,422 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 18 [2023-12-21 02:05:30,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:05:30,569 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 0 case distinctions, treesize of input 49 treesize of output 25 [2023-12-21 02:05:30,573 INFO L134 CoverageAnalysis]: Checked inductivity of 1563 backedges. 2 proven. 490 refuted. 0 times theorem prover too weak. 1071 trivial. 0 not checked. [2023-12-21 02:05:30,573 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 02:05:30,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1916791965] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 02:05:30,666 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 02:05:30,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 12 [2023-12-21 02:05:30,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386553418] [2023-12-21 02:05:30,666 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 02:05:30,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-21 02:05:30,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:05:30,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-21 02:05:30,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2023-12-21 02:05:30,667 INFO L87 Difference]: Start difference. First operand 877 states and 1080 transitions. Second operand has 12 states, 12 states have (on average 11.75) internal successors, (141), 12 states have internal predecessors, (141), 3 states have call successors, (33), 3 states have call predecessors, (33), 3 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2023-12-21 02:05:31,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:05:31,094 INFO L93 Difference]: Finished difference Result 1480 states and 1840 transitions. [2023-12-21 02:05:31,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-21 02:05:31,094 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.75) internal successors, (141), 12 states have internal predecessors, (141), 3 states have call successors, (33), 3 states have call predecessors, (33), 3 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) Word has length 220 [2023-12-21 02:05:31,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:05:31,095 INFO L225 Difference]: With dead ends: 1480 [2023-12-21 02:05:31,095 INFO L226 Difference]: Without dead ends: 885 [2023-12-21 02:05:31,096 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 319 GetRequests, 301 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=123, Invalid=257, Unknown=0, NotChecked=0, Total=380 [2023-12-21 02:05:31,096 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 230 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 332 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 02:05:31,096 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [230 Valid, 342 Invalid, 375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 332 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 02:05:31,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 885 states. [2023-12-21 02:05:31,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 885 to 847. [2023-12-21 02:05:31,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 847 states, 800 states have (on average 1.205) internal successors, (964), 801 states have internal predecessors, (964), 38 states have call successors, (38), 8 states have call predecessors, (38), 8 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2023-12-21 02:05:31,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 847 states to 847 states and 1040 transitions. [2023-12-21 02:05:31,185 INFO L78 Accepts]: Start accepts. Automaton has 847 states and 1040 transitions. Word has length 220 [2023-12-21 02:05:31,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:05:31,185 INFO L495 AbstractCegarLoop]: Abstraction has 847 states and 1040 transitions. [2023-12-21 02:05:31,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.75) internal successors, (141), 12 states have internal predecessors, (141), 3 states have call successors, (33), 3 states have call predecessors, (33), 3 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2023-12-21 02:05:31,185 INFO L276 IsEmpty]: Start isEmpty. Operand 847 states and 1040 transitions. [2023-12-21 02:05:31,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2023-12-21 02:05:31,187 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:05:31,187 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, 1, 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 02:05:31,198 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 02:05:31,394 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:05:31,394 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:05:31,394 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:05:31,394 INFO L85 PathProgramCache]: Analyzing trace with hash 1426601955, now seen corresponding path program 1 times [2023-12-21 02:05:31,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:05:31,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46887405] [2023-12-21 02:05:31,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:05:31,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:05:31,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:31,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:05:31,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:31,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:05:31,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:31,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:05:31,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:31,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:05:31,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:31,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:05:31,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:31,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:05:31,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:31,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:05:31,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:31,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:05:31,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:31,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:05:31,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:31,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:05:31,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:31,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:05:31,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:31,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:05:31,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:31,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:05:31,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:31,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:05:31,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:31,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:05:31,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:31,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-21 02:05:31,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:31,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-12-21 02:05:31,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:31,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-12-21 02:05:31,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:31,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-12-21 02:05:31,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:31,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-12-21 02:05:31,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:31,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2023-12-21 02:05:31,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:31,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2023-12-21 02:05:31,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:31,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-21 02:05:31,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:31,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2023-12-21 02:05:31,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:31,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2023-12-21 02:05:31,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:31,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2023-12-21 02:05:31,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:31,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-12-21 02:05:31,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:31,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2023-12-21 02:05:31,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:31,592 INFO L134 CoverageAnalysis]: Checked inductivity of 1561 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 1550 trivial. 0 not checked. [2023-12-21 02:05:31,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:05:31,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46887405] [2023-12-21 02:05:31,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46887405] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:05:31,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:05:31,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 02:05:31,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972111765] [2023-12-21 02:05:31,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:05:31,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 02:05:31,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:05:31,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 02:05:31,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-21 02:05:31,594 INFO L87 Difference]: Start difference. First operand 847 states and 1040 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 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 02:05:31,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:05:31,761 INFO L93 Difference]: Finished difference Result 1710 states and 2116 transitions. [2023-12-21 02:05:31,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 02:05:31,761 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 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 221 [2023-12-21 02:05:31,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:05:31,762 INFO L225 Difference]: With dead ends: 1710 [2023-12-21 02:05:31,762 INFO L226 Difference]: Without dead ends: 1135 [2023-12-21 02:05:31,763 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-21 02:05:31,763 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 81 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 02:05:31,763 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 380 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 02:05:31,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1135 states. [2023-12-21 02:05:31,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1135 to 865. [2023-12-21 02:05:31,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 865 states, 818 states have (on average 1.2004889975550121) internal successors, (982), 819 states have internal predecessors, (982), 38 states have call successors, (38), 8 states have call predecessors, (38), 8 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2023-12-21 02:05:31,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 865 states to 865 states and 1058 transitions. [2023-12-21 02:05:31,826 INFO L78 Accepts]: Start accepts. Automaton has 865 states and 1058 transitions. Word has length 221 [2023-12-21 02:05:31,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:05:31,826 INFO L495 AbstractCegarLoop]: Abstraction has 865 states and 1058 transitions. [2023-12-21 02:05:31,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 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 02:05:31,826 INFO L276 IsEmpty]: Start isEmpty. Operand 865 states and 1058 transitions. [2023-12-21 02:05:31,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2023-12-21 02:05:31,828 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:05:31,828 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, 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 02:05:31,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2023-12-21 02:05:31,828 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:05:31,828 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:05:31,828 INFO L85 PathProgramCache]: Analyzing trace with hash -161745947, now seen corresponding path program 1 times [2023-12-21 02:05:31,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:05:31,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922337327] [2023-12-21 02:05:31,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:05:31,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:05:31,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:32,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:05:32,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:32,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:05:32,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:32,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:05:32,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:32,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:05:32,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:32,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:05:32,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:32,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:05:32,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:32,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:05:32,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:32,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:05:32,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:32,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:05:32,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:32,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:05:32,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:32,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:05:32,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:32,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:05:32,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:32,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:05:32,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:32,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:05:32,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:32,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:05:32,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:32,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-21 02:05:32,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:32,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-12-21 02:05:32,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:32,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-12-21 02:05:32,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:32,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-12-21 02:05:32,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:32,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-12-21 02:05:32,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:32,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2023-12-21 02:05:32,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:32,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2023-12-21 02:05:32,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:32,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-21 02:05:32,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:32,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2023-12-21 02:05:32,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:32,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2023-12-21 02:05:32,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:32,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2023-12-21 02:05:32,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:32,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-12-21 02:05:32,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:32,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2023-12-21 02:05:32,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:32,719 INFO L134 CoverageAnalysis]: Checked inductivity of 1561 backedges. 10 proven. 39 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2023-12-21 02:05:32,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:05:32,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922337327] [2023-12-21 02:05:32,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922337327] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 02:05:32,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [676923577] [2023-12-21 02:05:32,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:05:32,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:05:32,722 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:05:32,723 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 02:05:32,746 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 02:05:32,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:32,975 INFO L262 TraceCheckSpWp]: Trace formula consists of 736 conjuncts, 35 conjunts are in the unsatisfiable core [2023-12-21 02:05:32,980 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:05:34,855 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-12-21 02:05:35,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:05:35,156 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 15 treesize of output 15 [2023-12-21 02:05:35,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:05:35,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:05:35,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:05:35,189 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 26 [2023-12-21 02:05:35,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:05:35,270 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 0 case distinctions, treesize of input 31 treesize of output 15 [2023-12-21 02:05:35,284 INFO L134 CoverageAnalysis]: Checked inductivity of 1561 backedges. 9 proven. 481 refuted. 0 times theorem prover too weak. 1071 trivial. 0 not checked. [2023-12-21 02:05:35,284 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 02:05:35,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [676923577] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 02:05:35,388 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 02:05:35,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 6] total 15 [2023-12-21 02:05:35,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767272843] [2023-12-21 02:05:35,388 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 02:05:35,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-21 02:05:35,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:05:35,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-21 02:05:35,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2023-12-21 02:05:35,389 INFO L87 Difference]: Start difference. First operand 865 states and 1058 transitions. Second operand has 15 states, 15 states have (on average 9.866666666666667) internal successors, (148), 15 states have internal predecessors, (148), 5 states have call successors, (47), 3 states have call predecessors, (47), 3 states have return successors, (47), 5 states have call predecessors, (47), 5 states have call successors, (47) [2023-12-21 02:05:36,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:05:36,604 INFO L93 Difference]: Finished difference Result 2423 states and 2950 transitions. [2023-12-21 02:05:36,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-21 02:05:36,605 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 9.866666666666667) internal successors, (148), 15 states have internal predecessors, (148), 5 states have call successors, (47), 3 states have call predecessors, (47), 3 states have return successors, (47), 5 states have call predecessors, (47), 5 states have call successors, (47) Word has length 221 [2023-12-21 02:05:36,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:05:36,607 INFO L225 Difference]: With dead ends: 2423 [2023-12-21 02:05:36,607 INFO L226 Difference]: Without dead ends: 1828 [2023-12-21 02:05:36,608 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 339 GetRequests, 305 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 203 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=260, Invalid=930, Unknown=0, NotChecked=0, Total=1190 [2023-12-21 02:05:36,608 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 817 mSDsluCounter, 639 mSDsCounter, 0 mSdLazyCounter, 826 mSolverCounterSat, 142 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 817 SdHoareTripleChecker+Valid, 738 SdHoareTripleChecker+Invalid, 968 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 142 IncrementalHoareTripleChecker+Valid, 826 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-21 02:05:36,608 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [817 Valid, 738 Invalid, 968 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [142 Valid, 826 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-21 02:05:36,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1828 states. [2023-12-21 02:05:36,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1828 to 1053. [2023-12-21 02:05:36,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1053 states, 976 states have (on average 1.1752049180327868) internal successors, (1147), 978 states have internal predecessors, (1147), 62 states have call successors, (62), 14 states have call predecessors, (62), 14 states have return successors, (62), 60 states have call predecessors, (62), 62 states have call successors, (62) [2023-12-21 02:05:36,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1053 states to 1053 states and 1271 transitions. [2023-12-21 02:05:36,715 INFO L78 Accepts]: Start accepts. Automaton has 1053 states and 1271 transitions. Word has length 221 [2023-12-21 02:05:36,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:05:36,715 INFO L495 AbstractCegarLoop]: Abstraction has 1053 states and 1271 transitions. [2023-12-21 02:05:36,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 9.866666666666667) internal successors, (148), 15 states have internal predecessors, (148), 5 states have call successors, (47), 3 states have call predecessors, (47), 3 states have return successors, (47), 5 states have call predecessors, (47), 5 states have call successors, (47) [2023-12-21 02:05:36,715 INFO L276 IsEmpty]: Start isEmpty. Operand 1053 states and 1271 transitions. [2023-12-21 02:05:36,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2023-12-21 02:05:36,717 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:05:36,718 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, 1, 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 02:05:36,737 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-21 02:05:36,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:05:36,925 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:05:36,925 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:05:36,925 INFO L85 PathProgramCache]: Analyzing trace with hash 1797179289, now seen corresponding path program 1 times [2023-12-21 02:05:36,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:05:36,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594415824] [2023-12-21 02:05:36,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:05:36,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:05:36,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:37,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:05:37,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:37,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:05:37,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:37,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:05:37,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:37,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:05:37,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:37,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:05:37,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:37,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:05:37,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:37,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:05:37,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:37,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:05:37,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:37,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:05:37,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:37,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:05:37,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:37,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:05:37,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:37,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:05:37,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:37,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:05:37,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:37,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:05:37,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:37,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:05:37,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:37,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-21 02:05:37,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:37,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-12-21 02:05:37,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:37,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-12-21 02:05:37,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:37,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-12-21 02:05:37,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:37,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-12-21 02:05:37,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:37,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2023-12-21 02:05:37,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:37,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2023-12-21 02:05:37,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:37,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-21 02:05:37,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:37,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2023-12-21 02:05:37,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:37,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2023-12-21 02:05:37,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:37,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2023-12-21 02:05:37,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:37,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-12-21 02:05:37,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:37,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2023-12-21 02:05:37,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:37,757 INFO L134 CoverageAnalysis]: Checked inductivity of 1561 backedges. 10 proven. 39 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2023-12-21 02:05:37,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:05:37,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594415824] [2023-12-21 02:05:37,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594415824] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 02:05:37,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1880575826] [2023-12-21 02:05:37,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:05:37,757 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:05:37,757 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:05:37,758 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 02:05:37,782 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 02:05:38,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:38,010 INFO L262 TraceCheckSpWp]: Trace formula consists of 735 conjuncts, 35 conjunts are in the unsatisfiable core [2023-12-21 02:05:38,015 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:05:39,956 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-12-21 02:05:40,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:05:40,300 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 15 treesize of output 15 [2023-12-21 02:05:40,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:05:40,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:05:40,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:05:40,384 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 25 [2023-12-21 02:05:40,457 INFO L134 CoverageAnalysis]: Checked inductivity of 1561 backedges. 10 proven. 480 refuted. 0 times theorem prover too weak. 1071 trivial. 0 not checked. [2023-12-21 02:05:40,457 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 02:05:40,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1880575826] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 02:05:40,598 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 02:05:40,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7] total 16 [2023-12-21 02:05:40,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076260229] [2023-12-21 02:05:40,598 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 02:05:40,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-21 02:05:40,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:05:40,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-21 02:05:40,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=315, Unknown=0, NotChecked=0, Total=380 [2023-12-21 02:05:40,599 INFO L87 Difference]: Start difference. First operand 1053 states and 1271 transitions. Second operand has 16 states, 16 states have (on average 9.3125) internal successors, (149), 16 states have internal predecessors, (149), 5 states have call successors, (47), 3 states have call predecessors, (47), 3 states have return successors, (47), 5 states have call predecessors, (47), 5 states have call successors, (47) [2023-12-21 02:05:41,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:05:41,627 INFO L93 Difference]: Finished difference Result 2247 states and 2737 transitions. [2023-12-21 02:05:41,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-21 02:05:41,627 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 9.3125) internal successors, (149), 16 states have internal predecessors, (149), 5 states have call successors, (47), 3 states have call predecessors, (47), 3 states have return successors, (47), 5 states have call predecessors, (47), 5 states have call successors, (47) Word has length 221 [2023-12-21 02:05:41,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:05:41,639 INFO L225 Difference]: With dead ends: 2247 [2023-12-21 02:05:41,639 INFO L226 Difference]: Without dead ends: 1677 [2023-12-21 02:05:41,640 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 337 GetRequests, 303 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 186 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=257, Invalid=865, Unknown=0, NotChecked=0, Total=1122 [2023-12-21 02:05:41,641 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 757 mSDsluCounter, 581 mSDsCounter, 0 mSdLazyCounter, 833 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 757 SdHoareTripleChecker+Valid, 696 SdHoareTripleChecker+Invalid, 934 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 833 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-21 02:05:41,641 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [757 Valid, 696 Invalid, 934 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 833 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-21 02:05:41,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1677 states. [2023-12-21 02:05:41,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1677 to 1043. [2023-12-21 02:05:41,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1043 states, 966 states have (on average 1.1563146997929608) internal successors, (1117), 968 states have internal predecessors, (1117), 62 states have call successors, (62), 14 states have call predecessors, (62), 14 states have return successors, (62), 60 states have call predecessors, (62), 62 states have call successors, (62) [2023-12-21 02:05:41,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1043 states to 1043 states and 1241 transitions. [2023-12-21 02:05:41,769 INFO L78 Accepts]: Start accepts. Automaton has 1043 states and 1241 transitions. Word has length 221 [2023-12-21 02:05:41,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:05:41,770 INFO L495 AbstractCegarLoop]: Abstraction has 1043 states and 1241 transitions. [2023-12-21 02:05:41,770 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 9.3125) internal successors, (149), 16 states have internal predecessors, (149), 5 states have call successors, (47), 3 states have call predecessors, (47), 3 states have return successors, (47), 5 states have call predecessors, (47), 5 states have call successors, (47) [2023-12-21 02:05:41,770 INFO L276 IsEmpty]: Start isEmpty. Operand 1043 states and 1241 transitions. [2023-12-21 02:05:41,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2023-12-21 02:05:41,772 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:05:41,772 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, 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 02:05:41,781 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 02:05:41,978 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:05:41,979 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:05:41,979 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:05:41,979 INFO L85 PathProgramCache]: Analyzing trace with hash 786062039, now seen corresponding path program 1 times [2023-12-21 02:05:41,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:05:41,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246725258] [2023-12-21 02:05:41,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:05:41,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:05:42,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:42,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:05:42,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:42,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:05:42,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:42,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:05:42,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:42,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:05:42,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:42,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:05:42,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:42,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:05:42,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:42,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:05:42,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:42,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:05:42,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:42,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:05:42,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:42,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:05:42,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:42,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:05:42,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:42,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:05:42,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:42,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:05:42,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:42,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:05:42,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:42,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:05:42,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:42,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-21 02:05:42,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:42,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-12-21 02:05:42,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:42,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-12-21 02:05:42,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:42,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-12-21 02:05:42,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:42,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-12-21 02:05:42,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:42,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2023-12-21 02:05:42,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:42,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2023-12-21 02:05:42,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:42,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-21 02:05:42,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:42,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2023-12-21 02:05:42,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:42,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2023-12-21 02:05:42,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:42,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2023-12-21 02:05:42,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:42,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-12-21 02:05:42,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:42,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2023-12-21 02:05:42,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:42,681 INFO L134 CoverageAnalysis]: Checked inductivity of 1561 backedges. 9 proven. 40 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2023-12-21 02:05:42,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:05:42,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246725258] [2023-12-21 02:05:42,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246725258] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 02:05:42,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1103983884] [2023-12-21 02:05:42,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:05:42,682 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:05:42,682 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:05:42,708 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 02:05:42,713 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-21 02:05:42,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:42,963 INFO L262 TraceCheckSpWp]: Trace formula consists of 738 conjuncts, 35 conjunts are in the unsatisfiable core [2023-12-21 02:05:42,968 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:05:44,921 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-12-21 02:05:45,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:05:45,281 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 15 treesize of output 15 [2023-12-21 02:05:45,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:05:45,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:05:45,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:05:45,366 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 25 [2023-12-21 02:05:45,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:05:45,442 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 0 case distinctions, treesize of input 30 treesize of output 14 [2023-12-21 02:05:45,456 INFO L134 CoverageAnalysis]: Checked inductivity of 1561 backedges. 9 proven. 481 refuted. 0 times theorem prover too weak. 1071 trivial. 0 not checked. [2023-12-21 02:05:45,456 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 02:05:45,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1103983884] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 02:05:45,581 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 02:05:45,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7] total 16 [2023-12-21 02:05:45,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216332913] [2023-12-21 02:05:45,582 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 02:05:45,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-21 02:05:45,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:05:45,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-21 02:05:45,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=321, Unknown=0, NotChecked=0, Total=380 [2023-12-21 02:05:45,583 INFO L87 Difference]: Start difference. First operand 1043 states and 1241 transitions. Second operand has 16 states, 16 states have (on average 9.4375) internal successors, (151), 16 states have internal predecessors, (151), 5 states have call successors, (47), 3 states have call predecessors, (47), 3 states have return successors, (47), 5 states have call predecessors, (47), 5 states have call successors, (47) [2023-12-21 02:05:46,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:05:46,791 INFO L93 Difference]: Finished difference Result 2153 states and 2565 transitions. [2023-12-21 02:05:46,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-21 02:05:46,792 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 9.4375) internal successors, (151), 16 states have internal predecessors, (151), 5 states have call successors, (47), 3 states have call predecessors, (47), 3 states have return successors, (47), 5 states have call predecessors, (47), 5 states have call successors, (47) Word has length 221 [2023-12-21 02:05:46,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:05:46,794 INFO L225 Difference]: With dead ends: 2153 [2023-12-21 02:05:46,794 INFO L226 Difference]: Without dead ends: 1593 [2023-12-21 02:05:46,795 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 339 GetRequests, 304 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=285, Invalid=975, Unknown=0, NotChecked=0, Total=1260 [2023-12-21 02:05:46,795 INFO L413 NwaCegarLoop]: 130 mSDtfsCounter, 777 mSDsluCounter, 603 mSDsCounter, 0 mSdLazyCounter, 993 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 777 SdHoareTripleChecker+Valid, 733 SdHoareTripleChecker+Invalid, 1120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 993 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-21 02:05:46,795 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [777 Valid, 733 Invalid, 1120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 993 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-21 02:05:46,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1593 states. [2023-12-21 02:05:46,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1593 to 1025. [2023-12-21 02:05:46,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1025 states, 948 states have (on average 1.1381856540084387) internal successors, (1079), 950 states have internal predecessors, (1079), 62 states have call successors, (62), 14 states have call predecessors, (62), 14 states have return successors, (62), 60 states have call predecessors, (62), 62 states have call successors, (62) [2023-12-21 02:05:46,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1025 states to 1025 states and 1203 transitions. [2023-12-21 02:05:46,905 INFO L78 Accepts]: Start accepts. Automaton has 1025 states and 1203 transitions. Word has length 221 [2023-12-21 02:05:46,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:05:46,905 INFO L495 AbstractCegarLoop]: Abstraction has 1025 states and 1203 transitions. [2023-12-21 02:05:46,905 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 9.4375) internal successors, (151), 16 states have internal predecessors, (151), 5 states have call successors, (47), 3 states have call predecessors, (47), 3 states have return successors, (47), 5 states have call predecessors, (47), 5 states have call successors, (47) [2023-12-21 02:05:46,905 INFO L276 IsEmpty]: Start isEmpty. Operand 1025 states and 1203 transitions. [2023-12-21 02:05:46,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2023-12-21 02:05:46,907 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:05:46,907 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:05:46,914 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-12-21 02:05:47,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:05:47,114 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:05:47,115 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:05:47,115 INFO L85 PathProgramCache]: Analyzing trace with hash 1064317109, now seen corresponding path program 1 times [2023-12-21 02:05:47,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:05:47,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842124654] [2023-12-21 02:05:47,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:05:47,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:05:47,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:47,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:05:47,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:47,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:05:47,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:47,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:05:47,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:47,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:05:47,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:47,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:05:47,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:47,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:05:47,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:47,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:05:47,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:47,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:05:47,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:47,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:05:47,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:47,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:05:47,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:47,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:05:47,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:47,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:05:47,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:47,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:05:47,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:47,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:05:47,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:47,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:05:47,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:47,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-21 02:05:47,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:47,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-12-21 02:05:47,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:47,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-12-21 02:05:47,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:47,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-12-21 02:05:47,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:47,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-12-21 02:05:47,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:47,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2023-12-21 02:05:47,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:47,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2023-12-21 02:05:47,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:47,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-21 02:05:47,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:47,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2023-12-21 02:05:47,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:47,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2023-12-21 02:05:47,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:47,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2023-12-21 02:05:47,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:47,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-12-21 02:05:47,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:47,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2023-12-21 02:05:47,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:47,457 INFO L134 CoverageAnalysis]: Checked inductivity of 1563 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 1541 trivial. 0 not checked. [2023-12-21 02:05:47,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:05:47,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842124654] [2023-12-21 02:05:47,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842124654] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:05:47,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:05:47,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 02:05:47,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780819453] [2023-12-21 02:05:47,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:05:47,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 02:05:47,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:05:47,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 02:05:47,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-21 02:05:47,459 INFO L87 Difference]: Start difference. First operand 1025 states and 1203 transitions. Second operand has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 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 02:05:47,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:05:47,692 INFO L93 Difference]: Finished difference Result 2143 states and 2474 transitions. [2023-12-21 02:05:47,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 02:05:47,693 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 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 222 [2023-12-21 02:05:47,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:05:47,695 INFO L225 Difference]: With dead ends: 2143 [2023-12-21 02:05:47,695 INFO L226 Difference]: Without dead ends: 1365 [2023-12-21 02:05:47,696 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-12-21 02:05:47,696 INFO L413 NwaCegarLoop]: 134 mSDtfsCounter, 165 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 413 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 02:05:47,696 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 413 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 02:05:47,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1365 states. [2023-12-21 02:05:47,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1365 to 1061. [2023-12-21 02:05:47,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1061 states, 984 states have (on average 1.1392276422764227) internal successors, (1121), 986 states have internal predecessors, (1121), 62 states have call successors, (62), 14 states have call predecessors, (62), 14 states have return successors, (62), 60 states have call predecessors, (62), 62 states have call successors, (62) [2023-12-21 02:05:47,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1061 states to 1061 states and 1245 transitions. [2023-12-21 02:05:47,805 INFO L78 Accepts]: Start accepts. Automaton has 1061 states and 1245 transitions. Word has length 222 [2023-12-21 02:05:47,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:05:47,806 INFO L495 AbstractCegarLoop]: Abstraction has 1061 states and 1245 transitions. [2023-12-21 02:05:47,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 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 02:05:47,806 INFO L276 IsEmpty]: Start isEmpty. Operand 1061 states and 1245 transitions. [2023-12-21 02:05:47,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2023-12-21 02:05:47,808 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:05:47,808 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:05:47,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2023-12-21 02:05:47,808 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:05:47,808 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:05:47,808 INFO L85 PathProgramCache]: Analyzing trace with hash 1676198837, now seen corresponding path program 1 times [2023-12-21 02:05:47,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:05:47,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125157212] [2023-12-21 02:05:47,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:05:47,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:05:47,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:48,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:05:48,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:48,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:05:48,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:48,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:05:48,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:48,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:05:48,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:48,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:05:48,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:48,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:05:48,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:48,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:05:48,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:48,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:05:48,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:48,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:05:48,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:48,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:05:48,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:48,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:05:48,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:48,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:05:48,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:48,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:05:48,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:48,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:05:48,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:48,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:05:48,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:48,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-21 02:05:48,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:48,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-12-21 02:05:48,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:48,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-12-21 02:05:48,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:48,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-12-21 02:05:48,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:48,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-12-21 02:05:48,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:48,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2023-12-21 02:05:48,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:48,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2023-12-21 02:05:48,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:48,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-21 02:05:48,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:48,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2023-12-21 02:05:48,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:48,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2023-12-21 02:05:48,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:48,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2023-12-21 02:05:48,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:48,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-12-21 02:05:48,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:48,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2023-12-21 02:05:48,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:48,492 INFO L134 CoverageAnalysis]: Checked inductivity of 1563 backedges. 7 proven. 44 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2023-12-21 02:05:48,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:05:48,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125157212] [2023-12-21 02:05:48,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125157212] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 02:05:48,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1848115670] [2023-12-21 02:05:48,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:05:48,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:05:48,493 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:05:48,494 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 02:05:48,518 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-21 02:05:48,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:48,757 INFO L262 TraceCheckSpWp]: Trace formula consists of 735 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-21 02:05:48,760 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:05:48,844 INFO L134 CoverageAnalysis]: Checked inductivity of 1563 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 1546 trivial. 0 not checked. [2023-12-21 02:05:48,844 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 02:05:48,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1848115670] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:05:48,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 02:05:48,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 12 [2023-12-21 02:05:48,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514526397] [2023-12-21 02:05:48,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:05:48,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 02:05:48,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:05:48,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 02:05:48,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-12-21 02:05:48,845 INFO L87 Difference]: Start difference. First operand 1061 states and 1245 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 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 02:05:49,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:05:49,040 INFO L93 Difference]: Finished difference Result 2055 states and 2386 transitions. [2023-12-21 02:05:49,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 02:05:49,041 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 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 222 [2023-12-21 02:05:49,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:05:49,057 INFO L225 Difference]: With dead ends: 2055 [2023-12-21 02:05:49,057 INFO L226 Difference]: Without dead ends: 1149 [2023-12-21 02:05:49,058 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 288 GetRequests, 277 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2023-12-21 02:05:49,064 INFO L413 NwaCegarLoop]: 138 mSDtfsCounter, 58 mSDsluCounter, 367 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 02:05:49,065 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 505 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 02:05:49,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1149 states. [2023-12-21 02:05:49,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1149 to 1061. [2023-12-21 02:05:49,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1061 states, 984 states have (on average 1.1351626016260163) internal successors, (1117), 986 states have internal predecessors, (1117), 62 states have call successors, (62), 14 states have call predecessors, (62), 14 states have return successors, (62), 60 states have call predecessors, (62), 62 states have call successors, (62) [2023-12-21 02:05:49,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1061 states to 1061 states and 1241 transitions. [2023-12-21 02:05:49,199 INFO L78 Accepts]: Start accepts. Automaton has 1061 states and 1241 transitions. Word has length 222 [2023-12-21 02:05:49,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:05:49,200 INFO L495 AbstractCegarLoop]: Abstraction has 1061 states and 1241 transitions. [2023-12-21 02:05:49,200 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 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 02:05:49,200 INFO L276 IsEmpty]: Start isEmpty. Operand 1061 states and 1241 transitions. [2023-12-21 02:05:49,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2023-12-21 02:05:49,202 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:05:49,202 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:05:49,223 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-12-21 02:05:49,409 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:05:49,410 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:05:49,410 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:05:49,410 INFO L85 PathProgramCache]: Analyzing trace with hash 1283171827, now seen corresponding path program 1 times [2023-12-21 02:05:49,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:05:49,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29300896] [2023-12-21 02:05:49,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:05:49,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:05:49,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:49,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:05:49,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:49,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:05:49,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:49,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:05:49,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:49,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:05:49,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:49,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:05:49,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:49,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:05:49,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:49,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:05:49,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:49,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:05:49,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:49,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:05:49,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:49,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:05:49,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:49,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:05:49,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:49,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:05:49,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:49,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:05:49,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:49,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:05:49,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:49,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:05:49,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:49,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-21 02:05:49,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:49,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-12-21 02:05:49,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:49,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-12-21 02:05:49,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:49,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-12-21 02:05:49,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:49,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-12-21 02:05:49,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:49,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2023-12-21 02:05:49,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:49,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2023-12-21 02:05:49,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:49,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-21 02:05:49,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:49,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2023-12-21 02:05:49,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:49,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2023-12-21 02:05:49,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:49,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2023-12-21 02:05:49,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:49,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-12-21 02:05:49,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:49,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2023-12-21 02:05:49,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:49,784 INFO L134 CoverageAnalysis]: Checked inductivity of 1563 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 1546 trivial. 0 not checked. [2023-12-21 02:05:49,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:05:49,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29300896] [2023-12-21 02:05:49,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [29300896] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:05:49,784 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:05:49,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 02:05:49,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430502752] [2023-12-21 02:05:49,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:05:49,785 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 02:05:49,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:05:49,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 02:05:49,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-21 02:05:49,785 INFO L87 Difference]: Start difference. First operand 1061 states and 1241 transitions. Second operand has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 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 02:05:50,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:05:50,069 INFO L93 Difference]: Finished difference Result 2145 states and 2494 transitions. [2023-12-21 02:05:50,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-21 02:05:50,069 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 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 222 [2023-12-21 02:05:50,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:05:50,071 INFO L225 Difference]: With dead ends: 2145 [2023-12-21 02:05:50,071 INFO L226 Difference]: Without dead ends: 1239 [2023-12-21 02:05:50,072 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 60 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 02:05:50,072 INFO L413 NwaCegarLoop]: 171 mSDtfsCounter, 94 mSDsluCounter, 747 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 918 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 02:05:50,072 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 918 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 02:05:50,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1239 states. [2023-12-21 02:05:50,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1239 to 972. [2023-12-21 02:05:50,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 972 states, 895 states have (on average 1.1385474860335196) internal successors, (1019), 897 states have internal predecessors, (1019), 62 states have call successors, (62), 14 states have call predecessors, (62), 14 states have return successors, (62), 60 states have call predecessors, (62), 62 states have call successors, (62) [2023-12-21 02:05:50,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 972 states to 972 states and 1143 transitions. [2023-12-21 02:05:50,191 INFO L78 Accepts]: Start accepts. Automaton has 972 states and 1143 transitions. Word has length 222 [2023-12-21 02:05:50,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:05:50,191 INFO L495 AbstractCegarLoop]: Abstraction has 972 states and 1143 transitions. [2023-12-21 02:05:50,191 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 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 02:05:50,191 INFO L276 IsEmpty]: Start isEmpty. Operand 972 states and 1143 transitions. [2023-12-21 02:05:50,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2023-12-21 02:05:50,193 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:05:50,193 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, 1, 1, 1, 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 02:05:50,193 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2023-12-21 02:05:50,193 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:05:50,193 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:05:50,193 INFO L85 PathProgramCache]: Analyzing trace with hash 436615453, now seen corresponding path program 1 times [2023-12-21 02:05:50,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:05:50,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28604440] [2023-12-21 02:05:50,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:05:50,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:05:50,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:50,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:05:50,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:50,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:05:50,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:50,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:05:50,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:50,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:05:50,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:50,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:05:50,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:50,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:05:50,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:50,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:05:50,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:50,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:05:50,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:50,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:05:50,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:50,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:05:50,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:50,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:05:50,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:50,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:05:50,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:50,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:05:50,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:50,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:05:50,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:50,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:05:50,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:50,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-21 02:05:50,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:50,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-12-21 02:05:50,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:50,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-12-21 02:05:50,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:50,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-12-21 02:05:50,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:50,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-12-21 02:05:50,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:50,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2023-12-21 02:05:50,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:50,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2023-12-21 02:05:50,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:50,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-21 02:05:50,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:50,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2023-12-21 02:05:50,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:50,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2023-12-21 02:05:50,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:50,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2023-12-21 02:05:50,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:50,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-12-21 02:05:50,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:50,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2023-12-21 02:05:50,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:50,561 INFO L134 CoverageAnalysis]: Checked inductivity of 1563 backedges. 7 proven. 43 refuted. 0 times theorem prover too weak. 1513 trivial. 0 not checked. [2023-12-21 02:05:50,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:05:50,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28604440] [2023-12-21 02:05:50,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [28604440] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 02:05:50,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [379634605] [2023-12-21 02:05:50,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:05:50,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:05:50,561 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:05:50,562 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 02:05:50,571 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-21 02:05:50,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:50,837 INFO L262 TraceCheckSpWp]: Trace formula consists of 741 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-21 02:05:50,840 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:05:50,884 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 45 treesize of output 29 [2023-12-21 02:05:50,893 INFO L134 CoverageAnalysis]: Checked inductivity of 1563 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 1546 trivial. 0 not checked. [2023-12-21 02:05:50,893 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 02:05:50,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [379634605] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:05:50,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 02:05:50,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 9 [2023-12-21 02:05:50,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112050330] [2023-12-21 02:05:50,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:05:50,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 02:05:50,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:05:50,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 02:05:50,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-12-21 02:05:50,894 INFO L87 Difference]: Start difference. First operand 972 states and 1143 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 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 02:05:51,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:05:51,099 INFO L93 Difference]: Finished difference Result 1753 states and 2021 transitions. [2023-12-21 02:05:51,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 02:05:51,099 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 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 225 [2023-12-21 02:05:51,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:05:51,100 INFO L225 Difference]: With dead ends: 1753 [2023-12-21 02:05:51,100 INFO L226 Difference]: Without dead ends: 1135 [2023-12-21 02:05:51,102 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 291 GetRequests, 281 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-12-21 02:05:51,103 INFO L413 NwaCegarLoop]: 143 mSDtfsCounter, 41 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 02:05:51,103 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 513 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 02:05:51,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1135 states. [2023-12-21 02:05:51,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1135 to 1006. [2023-12-21 02:05:51,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1006 states, 929 states have (on average 1.1280947255113025) internal successors, (1048), 931 states have internal predecessors, (1048), 62 states have call successors, (62), 14 states have call predecessors, (62), 14 states have return successors, (62), 60 states have call predecessors, (62), 62 states have call successors, (62) [2023-12-21 02:05:51,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1006 states to 1006 states and 1172 transitions. [2023-12-21 02:05:51,222 INFO L78 Accepts]: Start accepts. Automaton has 1006 states and 1172 transitions. Word has length 225 [2023-12-21 02:05:51,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:05:51,222 INFO L495 AbstractCegarLoop]: Abstraction has 1006 states and 1172 transitions. [2023-12-21 02:05:51,222 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 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 02:05:51,222 INFO L276 IsEmpty]: Start isEmpty. Operand 1006 states and 1172 transitions. [2023-12-21 02:05:51,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2023-12-21 02:05:51,224 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:05:51,224 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, 1, 1, 1, 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 02:05:51,248 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-12-21 02:05:51,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58 [2023-12-21 02:05:51,432 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:05:51,432 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:05:51,432 INFO L85 PathProgramCache]: Analyzing trace with hash 135112989, now seen corresponding path program 1 times [2023-12-21 02:05:51,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:05:51,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042931625] [2023-12-21 02:05:51,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:05:51,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:05:51,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:51,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:05:51,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:51,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:05:51,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:51,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:05:51,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:51,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:05:51,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:51,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:05:51,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:51,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:05:51,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:51,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:05:51,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:51,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:05:51,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:51,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:05:51,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:51,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:05:51,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:51,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:05:51,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:51,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:05:51,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:51,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:05:51,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:51,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:05:51,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:51,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:05:51,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:51,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-21 02:05:51,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:51,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-12-21 02:05:51,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:51,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-12-21 02:05:51,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:51,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-12-21 02:05:51,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:51,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-12-21 02:05:51,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:51,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2023-12-21 02:05:51,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:51,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2023-12-21 02:05:51,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:51,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-21 02:05:51,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:51,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2023-12-21 02:05:51,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:51,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2023-12-21 02:05:51,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:51,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2023-12-21 02:05:51,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:51,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-12-21 02:05:51,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:51,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2023-12-21 02:05:51,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:51,919 INFO L134 CoverageAnalysis]: Checked inductivity of 1563 backedges. 7 proven. 43 refuted. 0 times theorem prover too weak. 1513 trivial. 0 not checked. [2023-12-21 02:05:51,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:05:51,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042931625] [2023-12-21 02:05:51,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042931625] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 02:05:51,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [366808800] [2023-12-21 02:05:51,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:05:51,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:05:51,919 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:05:51,921 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 02:05:51,922 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-12-21 02:05:52,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:52,195 INFO L262 TraceCheckSpWp]: Trace formula consists of 741 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-21 02:05:52,198 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:05:52,247 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 41 treesize of output 25 [2023-12-21 02:05:52,249 INFO L134 CoverageAnalysis]: Checked inductivity of 1563 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 1546 trivial. 0 not checked. [2023-12-21 02:05:52,249 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 02:05:52,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [366808800] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:05:52,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 02:05:52,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 10 [2023-12-21 02:05:52,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163062326] [2023-12-21 02:05:52,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:05:52,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 02:05:52,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:05:52,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 02:05:52,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-12-21 02:05:52,250 INFO L87 Difference]: Start difference. First operand 1006 states and 1172 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 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 02:05:52,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:05:52,417 INFO L93 Difference]: Finished difference Result 1672 states and 1930 transitions. [2023-12-21 02:05:52,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 02:05:52,417 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 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 225 [2023-12-21 02:05:52,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:05:52,418 INFO L225 Difference]: With dead ends: 1672 [2023-12-21 02:05:52,418 INFO L226 Difference]: Without dead ends: 1060 [2023-12-21 02:05:52,419 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 292 GetRequests, 282 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-12-21 02:05:52,419 INFO L413 NwaCegarLoop]: 144 mSDtfsCounter, 38 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 512 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 02:05:52,420 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 512 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 02:05:52,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1060 states. [2023-12-21 02:05:52,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1060 to 986. [2023-12-21 02:05:52,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 986 states, 909 states have (on average 1.1265126512651265) internal successors, (1024), 911 states have internal predecessors, (1024), 62 states have call successors, (62), 14 states have call predecessors, (62), 14 states have return successors, (62), 60 states have call predecessors, (62), 62 states have call successors, (62) [2023-12-21 02:05:52,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 986 states to 986 states and 1148 transitions. [2023-12-21 02:05:52,534 INFO L78 Accepts]: Start accepts. Automaton has 986 states and 1148 transitions. Word has length 225 [2023-12-21 02:05:52,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:05:52,535 INFO L495 AbstractCegarLoop]: Abstraction has 986 states and 1148 transitions. [2023-12-21 02:05:52,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 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 02:05:52,535 INFO L276 IsEmpty]: Start isEmpty. Operand 986 states and 1148 transitions. [2023-12-21 02:05:52,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2023-12-21 02:05:52,537 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:05:52,537 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, 1, 1, 1, 1, 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 02:05:52,544 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-12-21 02:05:52,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2023-12-21 02:05:52,743 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:05:52,744 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:05:52,744 INFO L85 PathProgramCache]: Analyzing trace with hash -1633170356, now seen corresponding path program 1 times [2023-12-21 02:05:52,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:05:52,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056867523] [2023-12-21 02:05:52,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:05:52,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:05:52,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:53,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:05:53,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:53,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:05:53,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:53,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:05:53,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:53,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:05:53,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:53,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:05:53,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:53,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:05:53,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:53,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:05:53,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:53,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:05:53,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:53,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:05:53,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:53,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:05:53,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:53,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:05:53,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:53,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:05:53,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:53,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:05:53,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:53,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:05:53,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:53,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:05:53,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:53,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-21 02:05:53,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:53,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-12-21 02:05:53,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:53,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-12-21 02:05:53,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:53,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-12-21 02:05:53,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:53,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-12-21 02:05:53,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:53,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2023-12-21 02:05:53,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:53,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2023-12-21 02:05:53,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:53,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-21 02:05:53,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:53,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2023-12-21 02:05:53,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:53,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2023-12-21 02:05:53,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:53,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2023-12-21 02:05:53,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:53,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-12-21 02:05:53,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:53,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2023-12-21 02:05:53,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:53,675 INFO L134 CoverageAnalysis]: Checked inductivity of 1561 backedges. 9 proven. 10 refuted. 0 times theorem prover too weak. 1542 trivial. 0 not checked. [2023-12-21 02:05:53,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:05:53,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056867523] [2023-12-21 02:05:53,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2056867523] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 02:05:53,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [836512027] [2023-12-21 02:05:53,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:05:53,675 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:05:53,675 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:05:53,694 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 02:05:53,720 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-12-21 02:05:53,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:05:53,978 INFO L262 TraceCheckSpWp]: Trace formula consists of 762 conjuncts, 50 conjunts are in the unsatisfiable core [2023-12-21 02:05:53,986 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:05:57,444 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-12-21 02:05:58,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:05:58,127 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 15 treesize of output 15 [2023-12-21 02:05:58,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:05:58,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:05:58,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:05:58,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:05:58,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:05:58,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:05:58,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:05:58,371 INFO L349 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2023-12-21 02:05:58,371 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 45 [2023-12-21 02:05:58,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:05:58,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:05:58,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:05:58,735 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-21 02:05:58,735 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 60 treesize of output 52 [2023-12-21 02:05:58,923 INFO L134 CoverageAnalysis]: Checked inductivity of 1561 backedges. 9 proven. 481 refuted. 0 times theorem prover too weak. 1071 trivial. 0 not checked. [2023-12-21 02:05:58,923 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 02:06:07,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [836512027] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 02:06:07,846 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 02:06:07,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10] total 18 [2023-12-21 02:06:07,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644507880] [2023-12-21 02:06:07,847 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 02:06:07,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-21 02:06:07,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:06:07,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-21 02:06:07,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=448, Unknown=1, NotChecked=0, Total=552 [2023-12-21 02:06:07,848 INFO L87 Difference]: Start difference. First operand 986 states and 1148 transitions. Second operand has 18 states, 18 states have (on average 7.944444444444445) internal successors, (143), 18 states have internal predecessors, (143), 3 states have call successors, (33), 3 states have call predecessors, (33), 3 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2023-12-21 02:06:10,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:06:10,321 INFO L93 Difference]: Finished difference Result 1781 states and 2040 transitions. [2023-12-21 02:06:10,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-21 02:06:10,322 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.944444444444445) internal successors, (143), 18 states have internal predecessors, (143), 3 states have call successors, (33), 3 states have call predecessors, (33), 3 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) Word has length 226 [2023-12-21 02:06:10,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:06:10,325 INFO L225 Difference]: With dead ends: 1781 [2023-12-21 02:06:10,325 INFO L226 Difference]: Without dead ends: 1189 [2023-12-21 02:06:10,326 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 335 GetRequests, 302 SyntacticMatches, 2 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 9.6s TimeCoverageRelationStatistics Valid=248, Invalid=807, Unknown=1, NotChecked=0, Total=1056 [2023-12-21 02:06:10,326 INFO L413 NwaCegarLoop]: 140 mSDtfsCounter, 419 mSDsluCounter, 690 mSDsCounter, 0 mSdLazyCounter, 978 mSolverCounterSat, 62 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 419 SdHoareTripleChecker+Valid, 830 SdHoareTripleChecker+Invalid, 1043 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 978 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-12-21 02:06:10,327 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [419 Valid, 830 Invalid, 1043 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 978 Invalid, 3 Unknown, 0 Unchecked, 1.8s Time] [2023-12-21 02:06:10,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1189 states. [2023-12-21 02:06:10,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1189 to 1042. [2023-12-21 02:06:10,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1042 states, 952 states have (on average 1.1144957983193278) internal successors, (1061), 956 states have internal predecessors, (1061), 70 states have call successors, (70), 19 states have call predecessors, (70), 19 states have return successors, (70), 66 states have call predecessors, (70), 70 states have call successors, (70) [2023-12-21 02:06:10,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1042 states to 1042 states and 1201 transitions. [2023-12-21 02:06:10,505 INFO L78 Accepts]: Start accepts. Automaton has 1042 states and 1201 transitions. Word has length 226 [2023-12-21 02:06:10,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:06:10,506 INFO L495 AbstractCegarLoop]: Abstraction has 1042 states and 1201 transitions. [2023-12-21 02:06:10,506 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.944444444444445) internal successors, (143), 18 states have internal predecessors, (143), 3 states have call successors, (33), 3 states have call predecessors, (33), 3 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2023-12-21 02:06:10,506 INFO L276 IsEmpty]: Start isEmpty. Operand 1042 states and 1201 transitions. [2023-12-21 02:06:10,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2023-12-21 02:06:10,507 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:06:10,508 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, 1, 1, 1, 1, 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 02:06:10,515 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-12-21 02:06:10,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable60 [2023-12-21 02:06:10,715 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:06:10,715 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:06:10,715 INFO L85 PathProgramCache]: Analyzing trace with hash -1032520052, now seen corresponding path program 1 times [2023-12-21 02:06:10,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:06:10,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118140072] [2023-12-21 02:06:10,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:06:10,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:06:10,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:06:12,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:06:12,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:06:12,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:06:12,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:06:12,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:06:12,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:06:12,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:06:12,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:06:12,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:06:12,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:06:12,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:06:12,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:06:12,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:06:12,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:06:12,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:06:12,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:06:12,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:06:12,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:06:12,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:06:12,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:06:12,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:06:12,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:06:12,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:06:12,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:06:12,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:06:12,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:06:12,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:06:12,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:06:12,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:06:12,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:06:12,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-21 02:06:12,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:06:12,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-12-21 02:06:12,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:06:12,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-12-21 02:06:12,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:06:12,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-12-21 02:06:12,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:06:12,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-12-21 02:06:12,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:06:12,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2023-12-21 02:06:12,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:06:12,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2023-12-21 02:06:12,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:06:12,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-21 02:06:12,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:06:12,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2023-12-21 02:06:12,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:06:12,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2023-12-21 02:06:12,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:06:12,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2023-12-21 02:06:12,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:06:12,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-12-21 02:06:12,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:06:12,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2023-12-21 02:06:12,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:06:12,390 INFO L134 CoverageAnalysis]: Checked inductivity of 1561 backedges. 9 proven. 40 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2023-12-21 02:06:12,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:06:12,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118140072] [2023-12-21 02:06:12,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118140072] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 02:06:12,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1825652349] [2023-12-21 02:06:12,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:06:12,391 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:06:12,391 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:06:12,392 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 02:06:12,394 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-12-21 02:06:12,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:06:12,695 INFO L262 TraceCheckSpWp]: Trace formula consists of 762 conjuncts, 50 conjunts are in the unsatisfiable core [2023-12-21 02:06:12,700 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:06:16,181 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-12-21 02:06:16,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:06:16,666 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 15 treesize of output 15 [2023-12-21 02:06:16,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:06:16,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:06:16,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:06:16,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:06:16,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:06:16,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:06:16,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:06:16,928 INFO L349 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2023-12-21 02:06:16,928 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 50 treesize of output 43 [2023-12-21 02:06:17,286 INFO L134 CoverageAnalysis]: Checked inductivity of 1561 backedges. 9 proven. 481 refuted. 0 times theorem prover too weak. 1071 trivial. 0 not checked. [2023-12-21 02:06:17,287 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 02:06:18,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1825652349] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 02:06:18,108 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 02:06:18,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 10] total 23 [2023-12-21 02:06:18,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261368028] [2023-12-21 02:06:18,108 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 02:06:18,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-12-21 02:06:18,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:06:18,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-12-21 02:06:18,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=748, Unknown=0, NotChecked=0, Total=870 [2023-12-21 02:06:18,109 INFO L87 Difference]: Start difference. First operand 1042 states and 1201 transitions. Second operand has 23 states, 23 states have (on average 6.956521739130435) internal successors, (160), 23 states have internal predecessors, (160), 5 states have call successors, (47), 3 states have call predecessors, (47), 3 states have return successors, (47), 5 states have call predecessors, (47), 5 states have call successors, (47) [2023-12-21 02:06:20,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:06:20,835 INFO L93 Difference]: Finished difference Result 2467 states and 2760 transitions. [2023-12-21 02:06:20,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-21 02:06:20,837 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 6.956521739130435) internal successors, (160), 23 states have internal predecessors, (160), 5 states have call successors, (47), 3 states have call predecessors, (47), 3 states have return successors, (47), 5 states have call predecessors, (47), 5 states have call successors, (47) Word has length 226 [2023-12-21 02:06:20,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:06:20,839 INFO L225 Difference]: With dead ends: 2467 [2023-12-21 02:06:20,839 INFO L226 Difference]: Without dead ends: 1781 [2023-12-21 02:06:20,840 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 357 GetRequests, 306 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 422 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=501, Invalid=2049, Unknown=0, NotChecked=0, Total=2550 [2023-12-21 02:06:20,841 INFO L413 NwaCegarLoop]: 140 mSDtfsCounter, 827 mSDsluCounter, 1238 mSDsCounter, 0 mSdLazyCounter, 1831 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 827 SdHoareTripleChecker+Valid, 1378 SdHoareTripleChecker+Invalid, 1925 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 1831 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-21 02:06:20,841 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [827 Valid, 1378 Invalid, 1925 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 1831 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-21 02:06:20,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1781 states. [2023-12-21 02:06:21,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1781 to 1046. [2023-12-21 02:06:21,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1046 states, 956 states have (on average 1.1077405857740585) internal successors, (1059), 960 states have internal predecessors, (1059), 70 states have call successors, (70), 19 states have call predecessors, (70), 19 states have return successors, (70), 66 states have call predecessors, (70), 70 states have call successors, (70) [2023-12-21 02:06:21,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1046 states to 1046 states and 1199 transitions. [2023-12-21 02:06:21,008 INFO L78 Accepts]: Start accepts. Automaton has 1046 states and 1199 transitions. Word has length 226 [2023-12-21 02:06:21,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:06:21,008 INFO L495 AbstractCegarLoop]: Abstraction has 1046 states and 1199 transitions. [2023-12-21 02:06:21,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 6.956521739130435) internal successors, (160), 23 states have internal predecessors, (160), 5 states have call successors, (47), 3 states have call predecessors, (47), 3 states have return successors, (47), 5 states have call predecessors, (47), 5 states have call successors, (47) [2023-12-21 02:06:21,008 INFO L276 IsEmpty]: Start isEmpty. Operand 1046 states and 1199 transitions. [2023-12-21 02:06:21,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2023-12-21 02:06:21,010 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:06:21,010 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, 1, 1, 1, 1, 1, 1, 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 02:06:21,017 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-12-21 02:06:21,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61,12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:06:21,216 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:06:21,217 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:06:21,217 INFO L85 PathProgramCache]: Analyzing trace with hash -302075920, now seen corresponding path program 1 times [2023-12-21 02:06:21,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:06:21,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760243156] [2023-12-21 02:06:21,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:06:21,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:06:21,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:06:23,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:06:23,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:06:23,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:06:23,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:06:23,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:06:23,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:06:23,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:06:23,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:06:23,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:06:23,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:06:23,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:06:23,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:06:23,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:06:23,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:06:23,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:06:23,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:06:23,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:06:23,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:06:23,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:06:23,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:06:23,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:06:23,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:06:23,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:06:23,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:06:23,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:06:23,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:06:23,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:06:23,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:06:23,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:06:23,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:06:23,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-21 02:06:23,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:06:23,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-12-21 02:06:23,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:06:23,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-12-21 02:06:23,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:06:23,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-12-21 02:06:23,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:06:23,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-12-21 02:06:23,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:06:23,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2023-12-21 02:06:23,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:06:23,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2023-12-21 02:06:23,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:06:23,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-21 02:06:23,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:06:23,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2023-12-21 02:06:23,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:06:23,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2023-12-21 02:06:23,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:06:23,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2023-12-21 02:06:23,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:06:23,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-12-21 02:06:23,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:06:23,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2023-12-21 02:06:23,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:06:23,194 INFO L134 CoverageAnalysis]: Checked inductivity of 1561 backedges. 15 proven. 34 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2023-12-21 02:06:23,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:06:23,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760243156] [2023-12-21 02:06:23,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760243156] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 02:06:23,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1446347012] [2023-12-21 02:06:23,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:06:23,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:06:23,195 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:06:23,196 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 02:06:23,198 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-12-21 02:06:23,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:06:23,484 INFO L262 TraceCheckSpWp]: Trace formula consists of 767 conjuncts, 57 conjunts are in the unsatisfiable core [2023-12-21 02:06:23,489 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:06:25,233 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-12-21 02:06:25,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:06:25,537 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 15 treesize of output 15 [2023-12-21 02:06:25,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:06:25,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:06:25,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:06:25,713 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 27 [2023-12-21 02:06:25,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:06:25,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:06:25,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 02:06:25,974 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 0 case distinctions, treesize of input 41 treesize of output 17 [2023-12-21 02:06:26,109 INFO L134 CoverageAnalysis]: Checked inductivity of 1561 backedges. 6 proven. 484 refuted. 0 times theorem prover too weak. 1071 trivial. 0 not checked. [2023-12-21 02:06:26,110 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 02:06:26,393 INFO L134 CoverageAnalysis]: Checked inductivity of 1561 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 1542 trivial. 0 not checked. [2023-12-21 02:06:26,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1446347012] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-21 02:06:26,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-12-21 02:06:26,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [19, 17] total 43 [2023-12-21 02:06:26,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605101523] [2023-12-21 02:06:26,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:06:26,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-21 02:06:26,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:06:26,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-21 02:06:26,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=1683, Unknown=0, NotChecked=0, Total=1806 [2023-12-21 02:06:26,395 INFO L87 Difference]: Start difference. First operand 1046 states and 1199 transitions. Second operand has 12 states, 12 states have (on average 6.333333333333333) internal successors, (76), 12 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 02:06:27,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:06:27,074 INFO L93 Difference]: Finished difference Result 1824 states and 2058 transitions. [2023-12-21 02:06:27,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-21 02:06:27,074 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.333333333333333) internal successors, (76), 12 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 228 [2023-12-21 02:06:27,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:06:27,075 INFO L225 Difference]: With dead ends: 1824 [2023-12-21 02:06:27,075 INFO L226 Difference]: Without dead ends: 0 [2023-12-21 02:06:27,077 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 550 GetRequests, 498 SyntacticMatches, 1 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 553 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=210, Invalid=2546, Unknown=0, NotChecked=0, Total=2756 [2023-12-21 02:06:27,077 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 170 mSDsluCounter, 982 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 1109 SdHoareTripleChecker+Invalid, 449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 02:06:27,077 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 1109 Invalid, 449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 446 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 02:06:27,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-21 02:06:27,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-21 02:06:27,077 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 02:06:27,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-21 02:06:27,078 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 228 [2023-12-21 02:06:27,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:06:27,078 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-21 02:06:27,078 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.333333333333333) internal successors, (76), 12 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 02:06:27,078 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-21 02:06:27,078 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-21 02:06:27,080 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-21 02:06:27,102 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-12-21 02:06:27,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62,13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:06:27,289 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. Received shutdown request... [2023-12-21 02:17:02,351 WARN L619 AbstractCegarLoop]: Verification canceled: while PolyPacSimplificationTermWalker was simplifying a ∨-11-65-5-18-5-15-5-15-5-15-4-15-3-15-5-12-5-12-5-18-5-18-5-18-5-18-5-18-5-18-5-18-5-18-5-18-5-18-5-18-5-18-4-18-3-18-3-18-3-7-3-4-3-4-1 term,while PolyPacSimplificationTermWalker was simplifying 4 xjuncts wrt. a ∧-100-65-6-18-6-18-6-18-6-18-6-18-5-18-5-18-5-18-5-18-5-18-5-18-5-18-5-18-5-18-5-18-5-18-5-18-5-18-5-18-5-18-4-18-3-18-3-18-3-7-3-4-3-4-1 context. [2023-12-21 02:17:02,352 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-21 02:17:02,360 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 02:17:02,361 INFO L158 Benchmark]: Toolchain (without parser) took 835484.14ms. Allocated memory was 178.3MB in the beginning and 1.1GB in the end (delta: 968.9MB). Free memory was 132.5MB in the beginning and 494.7MB in the end (delta: -362.2MB). Peak memory consumption was 607.5MB. Max. memory is 8.0GB. [2023-12-21 02:17:02,361 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 178.3MB. Free memory was 134.9MB in the beginning and 134.8MB in the end (delta: 71.7kB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-21 02:17:02,361 INFO L158 Benchmark]: CACSL2BoogieTranslator took 255.06ms. Allocated memory is still 178.3MB. Free memory was 132.5MB in the beginning and 117.2MB in the end (delta: 15.3MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2023-12-21 02:17:02,361 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.59ms. Allocated memory is still 178.3MB. Free memory was 117.2MB in the beginning and 112.6MB in the end (delta: 4.6MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-21 02:17:02,362 INFO L158 Benchmark]: Boogie Preprocessor took 97.89ms. Allocated memory is still 178.3MB. Free memory was 112.6MB in the beginning and 107.7MB in the end (delta: 4.9MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-21 02:17:02,362 INFO L158 Benchmark]: RCFGBuilder took 668.36ms. Allocated memory is still 178.3MB. Free memory was 107.7MB in the beginning and 140.4MB in the end (delta: -32.7MB). Peak memory consumption was 32.2MB. Max. memory is 8.0GB. [2023-12-21 02:17:02,362 INFO L158 Benchmark]: TraceAbstraction took 834409.50ms. Allocated memory was 178.3MB in the beginning and 1.1GB in the end (delta: 968.9MB). Free memory was 139.4MB in the beginning and 494.7MB in the end (delta: -355.3MB). Peak memory consumption was 613.1MB. Max. memory is 8.0GB. [2023-12-21 02:17:02,362 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### [2023-12-21 02:17:02,364 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 178.3MB. Free memory was 134.9MB in the beginning and 134.8MB in the end (delta: 71.7kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 255.06ms. Allocated memory is still 178.3MB. Free memory was 132.5MB in the beginning and 117.2MB in the end (delta: 15.3MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 45.59ms. Allocated memory is still 178.3MB. Free memory was 117.2MB in the beginning and 112.6MB in the end (delta: 4.6MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 97.89ms. Allocated memory is still 178.3MB. Free memory was 112.6MB in the beginning and 107.7MB in the end (delta: 4.9MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * RCFGBuilder took 668.36ms. Allocated memory is still 178.3MB. Free memory was 107.7MB in the beginning and 140.4MB in the end (delta: -32.7MB). Peak memory consumption was 32.2MB. Max. memory is 8.0GB. * TraceAbstraction took 834409.50ms. Allocated memory was 178.3MB in the beginning and 1.1GB in the end (delta: 968.9MB). Free memory was 139.4MB in the beginning and 494.7MB in the end (delta: -355.3MB). Peak memory consumption was 613.1MB. 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 ∨-5-54-3-32-2-23-3-23-3-17-2-17-1 term,while PolyPacSimplificationTermWalker was simplifying 17 xjuncts wrt. a ∧-48-35-3-32-2-23-3-23-3-17-2-17-1 context. RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown