/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 true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-76.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-19 15:52:34,126 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-19 15:52:34,163 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-19 15:52:34,166 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-19 15:52:34,167 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-19 15:52:34,180 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-19 15:52:34,181 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-19 15:52:34,181 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-19 15:52:34,181 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-19 15:52:34,181 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-19 15:52:34,182 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-19 15:52:34,182 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-19 15:52:34,182 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-19 15:52:34,182 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-19 15:52:34,183 INFO L153 SettingsManager]: * Use SBE=true [2023-12-19 15:52:34,183 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-19 15:52:34,183 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-19 15:52:34,183 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-19 15:52:34,184 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-19 15:52:34,184 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-19 15:52:34,184 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-19 15:52:34,185 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-19 15:52:34,185 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-19 15:52:34,185 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-19 15:52:34,185 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-19 15:52:34,185 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-19 15:52:34,186 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-19 15:52:34,186 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-19 15:52:34,186 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-19 15:52:34,186 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-19 15:52:34,187 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-19 15:52:34,187 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-19 15:52:34,187 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 15:52:34,187 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-19 15:52:34,188 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-19 15:52:34,188 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-19 15:52:34,188 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-19 15:52:34,188 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-19 15:52:34,188 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-19 15:52:34,188 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-19 15:52:34,189 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-19 15:52:34,189 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-19 15:52:34,189 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-19 15:52:34,189 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-19 15:52:34,337 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-19 15:52:34,349 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-19 15:52:34,351 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-19 15:52:34,351 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-19 15:52:34,352 INFO L274 PluginConnector]: CDTParser initialized [2023-12-19 15:52:34,352 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-76.i [2023-12-19 15:52:35,396 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-19 15:52:35,581 INFO L384 CDTParser]: Found 1 translation units. [2023-12-19 15:52:35,581 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-76.i [2023-12-19 15:52:35,587 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7c71317a/973162cd4e53445ebee001d272252f0e/FLAG85e60392b [2023-12-19 15:52:35,597 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7c71317a/973162cd4e53445ebee001d272252f0e [2023-12-19 15:52:35,600 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-19 15:52:35,601 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-19 15:52:35,602 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-19 15:52:35,602 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-19 15:52:35,607 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-19 15:52:35,608 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 03:52:35" (1/1) ... [2023-12-19 15:52:35,608 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7143ed8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:52:35, skipping insertion in model container [2023-12-19 15:52:35,609 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 03:52:35" (1/1) ... [2023-12-19 15:52:35,630 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-19 15:52:35,736 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-s_file-76.i[916,929] [2023-12-19 15:52:35,768 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 15:52:35,782 INFO L202 MainTranslator]: Completed pre-run [2023-12-19 15:52:35,789 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-s_file-76.i[916,929] [2023-12-19 15:52:35,830 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 15:52:35,861 INFO L206 MainTranslator]: Completed translation [2023-12-19 15:52:35,862 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:52:35 WrapperNode [2023-12-19 15:52:35,863 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-19 15:52:35,863 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-19 15:52:35,863 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-19 15:52:35,863 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-19 15:52:35,868 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:52:35" (1/1) ... [2023-12-19 15:52:35,885 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:52:35" (1/1) ... [2023-12-19 15:52:35,920 INFO L138 Inliner]: procedures = 29, calls = 134, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 410 [2023-12-19 15:52:35,921 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-19 15:52:35,921 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-19 15:52:35,921 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-19 15:52:35,921 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-19 15:52:35,931 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:52:35" (1/1) ... [2023-12-19 15:52:35,932 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:52:35" (1/1) ... [2023-12-19 15:52:35,936 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:52:35" (1/1) ... [2023-12-19 15:52:35,967 INFO L175 MemorySlicer]: Split 107 memory accesses to 2 slices as follows [2, 105]. 98 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 12]. The 17 writes are split as follows [0, 17]. [2023-12-19 15:52:35,967 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:52:35" (1/1) ... [2023-12-19 15:52:35,968 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:52:35" (1/1) ... [2023-12-19 15:52:35,994 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:52:35" (1/1) ... [2023-12-19 15:52:35,998 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:52:35" (1/1) ... [2023-12-19 15:52:36,000 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:52:35" (1/1) ... [2023-12-19 15:52:36,002 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:52:35" (1/1) ... [2023-12-19 15:52:36,025 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-19 15:52:36,026 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-19 15:52:36,027 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-19 15:52:36,027 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-19 15:52:36,027 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:52:35" (1/1) ... [2023-12-19 15:52:36,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 15:52:36,042 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:52:36,060 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) [2023-12-19 15:52:36,078 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 [2023-12-19 15:52:36,082 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-19 15:52:36,082 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2023-12-19 15:52:36,083 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2023-12-19 15:52:36,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-12-19 15:52:36,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-12-19 15:52:36,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2023-12-19 15:52:36,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2023-12-19 15:52:36,084 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-12-19 15:52:36,085 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-12-19 15:52:36,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2023-12-19 15:52:36,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2023-12-19 15:52:36,085 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-19 15:52:36,085 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-19 15:52:36,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-19 15:52:36,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-19 15:52:36,086 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-19 15:52:36,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-19 15:52:36,188 INFO L241 CfgBuilder]: Building ICFG [2023-12-19 15:52:36,190 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-19 15:52:36,515 INFO L282 CfgBuilder]: Performing block encoding [2023-12-19 15:52:36,536 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-19 15:52:36,536 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-19 15:52:36,536 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 03:52:36 BoogieIcfgContainer [2023-12-19 15:52:36,536 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-19 15:52:36,539 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-19 15:52:36,539 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-19 15:52:36,541 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-19 15:52:36,541 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 03:52:35" (1/3) ... [2023-12-19 15:52:36,542 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d1d7379 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 03:52:36, skipping insertion in model container [2023-12-19 15:52:36,542 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:52:35" (2/3) ... [2023-12-19 15:52:36,542 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d1d7379 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 03:52:36, skipping insertion in model container [2023-12-19 15:52:36,542 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 03:52:36" (3/3) ... [2023-12-19 15:52:36,543 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-76.i [2023-12-19 15:52:36,555 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-19 15:52:36,555 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-19 15:52:36,594 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-19 15:52:36,599 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;@7133d707, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-19 15:52:36,599 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-19 15:52:36,602 INFO L276 IsEmpty]: Start isEmpty. Operand has 95 states, 77 states have (on average 1.4545454545454546) internal successors, (112), 78 states have internal predecessors, (112), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-12-19 15:52:36,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-19 15:52:36,612 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:52:36,612 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:52:36,613 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:52:36,616 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:52:36,616 INFO L85 PathProgramCache]: Analyzing trace with hash -268641406, now seen corresponding path program 1 times [2023-12-19 15:52:36,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:52:36,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452717312] [2023-12-19 15:52:36,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:52:36,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:52:36,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:36,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:52:36,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:36,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:52:36,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:36,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:52:36,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:36,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:52:36,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:36,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:52:36,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:36,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:52:36,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:36,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-19 15:52:36,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:36,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-19 15:52:36,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:36,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-19 15:52:36,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:36,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-12-19 15:52:36,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:36,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-12-19 15:52:36,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:36,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-19 15:52:36,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:36,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-19 15:52:36,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:36,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-19 15:52:36,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:36,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-19 15:52:36,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:36,994 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-19 15:52:36,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:52:36,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452717312] [2023-12-19 15:52:36,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452717312] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:52:36,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:52:36,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-19 15:52:36,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314436557] [2023-12-19 15:52:36,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:52:37,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-19 15:52:37,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:52:37,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-19 15:52:37,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-19 15:52:37,028 INFO L87 Difference]: Start difference. First operand has 95 states, 77 states have (on average 1.4545454545454546) internal successors, (112), 78 states have internal predecessors, (112), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-19 15:52:37,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:52:37,072 INFO L93 Difference]: Finished difference Result 183 states and 291 transitions. [2023-12-19 15:52:37,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-19 15:52:37,074 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) Word has length 114 [2023-12-19 15:52:37,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:52:37,080 INFO L225 Difference]: With dead ends: 183 [2023-12-19 15:52:37,080 INFO L226 Difference]: Without dead ends: 89 [2023-12-19 15:52:37,083 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-19 15:52:37,085 INFO L413 NwaCegarLoop]: 124 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, 124 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 [2023-12-19 15:52:37,087 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 124 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 15:52:37,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2023-12-19 15:52:37,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2023-12-19 15:52:37,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 72 states have (on average 1.3611111111111112) internal successors, (98), 72 states have internal predecessors, (98), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-12-19 15:52:37,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 128 transitions. [2023-12-19 15:52:37,116 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 128 transitions. Word has length 114 [2023-12-19 15:52:37,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:52:37,117 INFO L495 AbstractCegarLoop]: Abstraction has 89 states and 128 transitions. [2023-12-19 15:52:37,117 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-19 15:52:37,117 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 128 transitions. [2023-12-19 15:52:37,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-19 15:52:37,120 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:52:37,120 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:52:37,120 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-19 15:52:37,120 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:52:37,121 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:52:37,121 INFO L85 PathProgramCache]: Analyzing trace with hash -691383482, now seen corresponding path program 1 times [2023-12-19 15:52:37,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:52:37,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382225887] [2023-12-19 15:52:37,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:52:37,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:52:37,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:37,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:52:37,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:37,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:52:37,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:37,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:52:37,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:37,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:52:37,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:37,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:52:37,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:37,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:52:37,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:37,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-19 15:52:37,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:37,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-19 15:52:37,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:37,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-19 15:52:37,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:37,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-12-19 15:52:37,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:37,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-12-19 15:52:37,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:37,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-19 15:52:37,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:37,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-19 15:52:37,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:37,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-19 15:52:37,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:37,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-19 15:52:37,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:37,418 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-19 15:52:37,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:52:37,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382225887] [2023-12-19 15:52:37,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382225887] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:52:37,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:52:37,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 15:52:37,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651942422] [2023-12-19 15:52:37,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:52:37,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 15:52:37,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:52:37,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 15:52:37,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 15:52:37,428 INFO L87 Difference]: Start difference. First operand 89 states and 128 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-19 15:52:37,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:52:37,458 INFO L93 Difference]: Finished difference Result 177 states and 255 transitions. [2023-12-19 15:52:37,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 15:52:37,461 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 114 [2023-12-19 15:52:37,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:52:37,463 INFO L225 Difference]: With dead ends: 177 [2023-12-19 15:52:37,464 INFO L226 Difference]: Without dead ends: 89 [2023-12-19 15:52:37,464 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 15:52:37,465 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 0 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 15:52:37,465 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 242 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 15:52:37,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2023-12-19 15:52:37,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2023-12-19 15:52:37,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 72 states have (on average 1.3472222222222223) internal successors, (97), 72 states have internal predecessors, (97), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-12-19 15:52:37,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 127 transitions. [2023-12-19 15:52:37,474 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 127 transitions. Word has length 114 [2023-12-19 15:52:37,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:52:37,477 INFO L495 AbstractCegarLoop]: Abstraction has 89 states and 127 transitions. [2023-12-19 15:52:37,477 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-19 15:52:37,477 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 127 transitions. [2023-12-19 15:52:37,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-12-19 15:52:37,484 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:52:37,484 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:52:37,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-19 15:52:37,485 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:52:37,485 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:52:37,485 INFO L85 PathProgramCache]: Analyzing trace with hash 1659991216, now seen corresponding path program 1 times [2023-12-19 15:52:37,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:52:37,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176358372] [2023-12-19 15:52:37,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:52:37,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:52:37,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:38,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:52:38,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:38,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:52:38,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:38,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:52:38,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:38,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:52:38,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:38,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:52:38,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:38,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:52:38,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:38,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-19 15:52:38,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:38,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-19 15:52:38,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:38,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-19 15:52:38,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:38,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-12-19 15:52:38,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:38,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-12-19 15:52:38,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:38,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-19 15:52:38,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:38,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-19 15:52:38,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:38,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-19 15:52:38,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:38,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-19 15:52:38,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:38,791 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-19 15:52:38,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:52:38,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176358372] [2023-12-19 15:52:38,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176358372] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:52:38,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:52:38,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-19 15:52:38,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376811301] [2023-12-19 15:52:38,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:52:38,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-19 15:52:38,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:52:38,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-19 15:52:38,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-12-19 15:52:38,795 INFO L87 Difference]: Start difference. First operand 89 states and 127 transitions. Second operand has 10 states, 9 states have (on average 4.777777777777778) internal successors, (43), 10 states have internal predecessors, (43), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-19 15:52:39,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:52:39,380 INFO L93 Difference]: Finished difference Result 288 states and 406 transitions. [2023-12-19 15:52:39,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-19 15:52:39,381 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.777777777777778) internal successors, (43), 10 states have internal predecessors, (43), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) Word has length 115 [2023-12-19 15:52:39,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:52:39,382 INFO L225 Difference]: With dead ends: 288 [2023-12-19 15:52:39,382 INFO L226 Difference]: Without dead ends: 200 [2023-12-19 15:52:39,383 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2023-12-19 15:52:39,384 INFO L413 NwaCegarLoop]: 139 mSDtfsCounter, 194 mSDsluCounter, 835 mSDsCounter, 0 mSdLazyCounter, 681 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 974 SdHoareTripleChecker+Invalid, 696 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 681 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-19 15:52:39,384 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 974 Invalid, 696 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 681 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-19 15:52:39,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2023-12-19 15:52:39,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 156. [2023-12-19 15:52:39,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 134 states have (on average 1.373134328358209) internal successors, (184), 135 states have internal predecessors, (184), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19) [2023-12-19 15:52:39,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 222 transitions. [2023-12-19 15:52:39,413 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 222 transitions. Word has length 115 [2023-12-19 15:52:39,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:52:39,413 INFO L495 AbstractCegarLoop]: Abstraction has 156 states and 222 transitions. [2023-12-19 15:52:39,414 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.777777777777778) internal successors, (43), 10 states have internal predecessors, (43), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-19 15:52:39,414 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 222 transitions. [2023-12-19 15:52:39,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-12-19 15:52:39,415 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:52:39,415 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:52:39,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-19 15:52:39,415 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:52:39,415 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:52:39,416 INFO L85 PathProgramCache]: Analyzing trace with hash -1817327630, now seen corresponding path program 1 times [2023-12-19 15:52:39,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:52:39,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101275101] [2023-12-19 15:52:39,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:52:39,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:52:39,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:39,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:52:39,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:39,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:52:39,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:39,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:52:39,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:39,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:52:39,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:39,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:52:39,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:39,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:52:39,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:39,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-19 15:52:39,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:39,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-19 15:52:39,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:39,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-19 15:52:39,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:39,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-12-19 15:52:39,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:39,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-12-19 15:52:39,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:39,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-19 15:52:39,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:39,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-19 15:52:39,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:39,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-19 15:52:39,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:39,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-19 15:52:39,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:39,490 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-19 15:52:39,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:52:39,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101275101] [2023-12-19 15:52:39,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101275101] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:52:39,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:52:39,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 15:52:39,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292263303] [2023-12-19 15:52:39,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:52:39,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 15:52:39,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:52:39,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 15:52:39,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 15:52:39,492 INFO L87 Difference]: Start difference. First operand 156 states and 222 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-19 15:52:39,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:52:39,506 INFO L93 Difference]: Finished difference Result 258 states and 365 transitions. [2023-12-19 15:52:39,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 15:52:39,506 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 115 [2023-12-19 15:52:39,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:52:39,507 INFO L225 Difference]: With dead ends: 258 [2023-12-19 15:52:39,507 INFO L226 Difference]: Without dead ends: 103 [2023-12-19 15:52:39,508 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 15:52:39,509 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 24 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 15:52:39,509 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 218 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 15:52:39,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2023-12-19 15:52:39,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2023-12-19 15:52:39,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 85 states have (on average 1.3294117647058823) internal successors, (113), 85 states have internal predecessors, (113), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-12-19 15:52:39,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 143 transitions. [2023-12-19 15:52:39,516 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 143 transitions. Word has length 115 [2023-12-19 15:52:39,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:52:39,516 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 143 transitions. [2023-12-19 15:52:39,516 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-19 15:52:39,516 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 143 transitions. [2023-12-19 15:52:39,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-12-19 15:52:39,517 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:52:39,517 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:52:39,517 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-19 15:52:39,518 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:52:39,518 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:52:39,518 INFO L85 PathProgramCache]: Analyzing trace with hash 687426485, now seen corresponding path program 1 times [2023-12-19 15:52:39,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:52:39,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810065593] [2023-12-19 15:52:39,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:52:39,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:52:39,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:40,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:52:40,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:40,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:52:40,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:40,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:52:40,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:40,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:52:40,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:40,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:52:40,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:40,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:52:40,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:40,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-19 15:52:40,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:40,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-19 15:52:40,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:40,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-19 15:52:40,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:40,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-12-19 15:52:40,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:40,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-12-19 15:52:40,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:40,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-19 15:52:40,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:40,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-19 15:52:40,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:40,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-19 15:52:40,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:40,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-19 15:52:40,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:40,178 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-19 15:52:40,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:52:40,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810065593] [2023-12-19 15:52:40,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810065593] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:52:40,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:52:40,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 15:52:40,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896267511] [2023-12-19 15:52:40,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:52:40,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 15:52:40,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:52:40,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 15:52:40,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-19 15:52:40,181 INFO L87 Difference]: Start difference. First operand 103 states and 143 transitions. Second operand has 6 states, 5 states have (on average 9.0) internal successors, (45), 6 states have internal predecessors, (45), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-19 15:52:40,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:52:40,447 INFO L93 Difference]: Finished difference Result 278 states and 385 transitions. [2023-12-19 15:52:40,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-19 15:52:40,447 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.0) internal successors, (45), 6 states have internal predecessors, (45), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) Word has length 117 [2023-12-19 15:52:40,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:52:40,449 INFO L225 Difference]: With dead ends: 278 [2023-12-19 15:52:40,449 INFO L226 Difference]: Without dead ends: 176 [2023-12-19 15:52:40,450 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-12-19 15:52:40,451 INFO L413 NwaCegarLoop]: 126 mSDtfsCounter, 171 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 375 SdHoareTripleChecker+Invalid, 330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-19 15:52:40,451 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 375 Invalid, 330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-19 15:52:40,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2023-12-19 15:52:40,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 103. [2023-12-19 15:52:40,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 85 states have (on average 1.3176470588235294) internal successors, (112), 85 states have internal predecessors, (112), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-12-19 15:52:40,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 142 transitions. [2023-12-19 15:52:40,459 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 142 transitions. Word has length 117 [2023-12-19 15:52:40,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:52:40,460 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 142 transitions. [2023-12-19 15:52:40,460 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.0) internal successors, (45), 6 states have internal predecessors, (45), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-19 15:52:40,460 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 142 transitions. [2023-12-19 15:52:40,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-12-19 15:52:40,461 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:52:40,461 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:52:40,461 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-19 15:52:40,461 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:52:40,461 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:52:40,461 INFO L85 PathProgramCache]: Analyzing trace with hash -2107864187, now seen corresponding path program 1 times [2023-12-19 15:52:40,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:52:40,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803195020] [2023-12-19 15:52:40,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:52:40,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:52:40,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:40,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:52:40,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:40,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:52:40,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:40,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:52:40,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:40,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:52:40,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:40,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:52:40,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:40,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:52:40,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:40,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-19 15:52:40,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:40,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-19 15:52:40,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:40,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-19 15:52:40,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:40,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-12-19 15:52:40,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:40,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-12-19 15:52:40,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:40,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-19 15:52:40,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:40,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-19 15:52:40,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:40,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-19 15:52:40,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:40,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-19 15:52:40,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:40,545 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-19 15:52:40,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:52:40,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803195020] [2023-12-19 15:52:40,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [803195020] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:52:40,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:52:40,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 15:52:40,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143222826] [2023-12-19 15:52:40,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:52:40,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 15:52:40,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:52:40,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 15:52:40,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 15:52:40,546 INFO L87 Difference]: Start difference. First operand 103 states and 142 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-19 15:52:40,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:52:40,559 INFO L93 Difference]: Finished difference Result 223 states and 309 transitions. [2023-12-19 15:52:40,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 15:52:40,560 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 117 [2023-12-19 15:52:40,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:52:40,560 INFO L225 Difference]: With dead ends: 223 [2023-12-19 15:52:40,560 INFO L226 Difference]: Without dead ends: 121 [2023-12-19 15:52:40,561 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 15:52:40,561 INFO L413 NwaCegarLoop]: 145 mSDtfsCounter, 33 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 15:52:40,562 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 256 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 15:52:40,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2023-12-19 15:52:40,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 103. [2023-12-19 15:52:40,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 85 states have (on average 1.3058823529411765) internal successors, (111), 85 states have internal predecessors, (111), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-12-19 15:52:40,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 141 transitions. [2023-12-19 15:52:40,567 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 141 transitions. Word has length 117 [2023-12-19 15:52:40,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:52:40,568 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 141 transitions. [2023-12-19 15:52:40,568 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-19 15:52:40,568 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 141 transitions. [2023-12-19 15:52:40,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-12-19 15:52:40,569 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:52:40,569 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:52:40,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-19 15:52:40,569 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:52:40,569 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:52:40,569 INFO L85 PathProgramCache]: Analyzing trace with hash -1449334213, now seen corresponding path program 1 times [2023-12-19 15:52:40,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:52:40,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778901293] [2023-12-19 15:52:40,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:52:40,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:52:40,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:40,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:52:40,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:40,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:52:40,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:40,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:52:40,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:40,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:52:40,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:40,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:52:40,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:40,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:52:40,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:40,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-19 15:52:40,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:40,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-19 15:52:40,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:40,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-19 15:52:40,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:40,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-12-19 15:52:40,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:40,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-12-19 15:52:40,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:40,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-19 15:52:40,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:40,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-19 15:52:40,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:40,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-19 15:52:40,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:40,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-19 15:52:40,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:40,625 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-19 15:52:40,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:52:40,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778901293] [2023-12-19 15:52:40,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778901293] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:52:40,625 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:52:40,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 15:52:40,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905652268] [2023-12-19 15:52:40,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:52:40,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 15:52:40,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:52:40,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 15:52:40,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 15:52:40,626 INFO L87 Difference]: Start difference. First operand 103 states and 141 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-19 15:52:40,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:52:40,640 INFO L93 Difference]: Finished difference Result 207 states and 285 transitions. [2023-12-19 15:52:40,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 15:52:40,641 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 119 [2023-12-19 15:52:40,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:52:40,641 INFO L225 Difference]: With dead ends: 207 [2023-12-19 15:52:40,641 INFO L226 Difference]: Without dead ends: 105 [2023-12-19 15:52:40,642 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 15:52:40,642 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 0 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 15:52:40,642 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 235 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 15:52:40,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2023-12-19 15:52:40,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2023-12-19 15:52:40,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 87 states have (on average 1.2988505747126438) internal successors, (113), 87 states have internal predecessors, (113), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-12-19 15:52:40,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 143 transitions. [2023-12-19 15:52:40,648 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 143 transitions. Word has length 119 [2023-12-19 15:52:40,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:52:40,648 INFO L495 AbstractCegarLoop]: Abstraction has 105 states and 143 transitions. [2023-12-19 15:52:40,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-19 15:52:40,648 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 143 transitions. [2023-12-19 15:52:40,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-12-19 15:52:40,649 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:52:40,649 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:52:40,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-19 15:52:40,649 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:52:40,649 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:52:40,649 INFO L85 PathProgramCache]: Analyzing trace with hash -2036140227, now seen corresponding path program 1 times [2023-12-19 15:52:40,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:52:40,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130646994] [2023-12-19 15:52:40,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:52:40,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:52:40,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:41,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:52:41,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:41,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:52:41,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:41,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:52:41,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:41,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:52:41,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:41,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:52:41,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:41,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:52:41,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:41,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-19 15:52:41,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:41,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-19 15:52:41,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:41,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-19 15:52:41,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:41,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-12-19 15:52:41,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:41,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-12-19 15:52:41,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:41,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-19 15:52:41,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:41,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-19 15:52:41,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:41,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-19 15:52:41,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:41,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-19 15:52:41,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:41,205 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-19 15:52:41,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:52:41,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130646994] [2023-12-19 15:52:41,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130646994] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:52:41,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:52:41,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 15:52:41,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134023195] [2023-12-19 15:52:41,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:52:41,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 15:52:41,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:52:41,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 15:52:41,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-19 15:52:41,206 INFO L87 Difference]: Start difference. First operand 105 states and 143 transitions. Second operand has 7 states, 6 states have (on average 7.833333333333333) internal successors, (47), 7 states have internal predecessors, (47), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-19 15:52:41,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:52:41,501 INFO L93 Difference]: Finished difference Result 263 states and 355 transitions. [2023-12-19 15:52:41,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-19 15:52:41,502 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.833333333333333) internal successors, (47), 7 states have internal predecessors, (47), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) Word has length 119 [2023-12-19 15:52:41,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:52:41,502 INFO L225 Difference]: With dead ends: 263 [2023-12-19 15:52:41,503 INFO L226 Difference]: Without dead ends: 159 [2023-12-19 15:52:41,503 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-12-19 15:52:41,503 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 129 mSDsluCounter, 392 mSDsCounter, 0 mSdLazyCounter, 425 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 524 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-19 15:52:41,503 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 524 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 425 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-19 15:52:41,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2023-12-19 15:52:41,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 104. [2023-12-19 15:52:41,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 86 states have (on average 1.2906976744186047) internal successors, (111), 86 states have internal predecessors, (111), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-12-19 15:52:41,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 141 transitions. [2023-12-19 15:52:41,510 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 141 transitions. Word has length 119 [2023-12-19 15:52:41,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:52:41,510 INFO L495 AbstractCegarLoop]: Abstraction has 104 states and 141 transitions. [2023-12-19 15:52:41,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.833333333333333) internal successors, (47), 7 states have internal predecessors, (47), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-19 15:52:41,510 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 141 transitions. [2023-12-19 15:52:41,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-12-19 15:52:41,511 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:52:41,511 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:52:41,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-19 15:52:41,511 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:52:41,512 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:52:41,512 INFO L85 PathProgramCache]: Analyzing trace with hash 896121367, now seen corresponding path program 1 times [2023-12-19 15:52:41,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:52:41,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341376787] [2023-12-19 15:52:41,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:52:41,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:52:41,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:41,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:52:41,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:41,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:52:41,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:41,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:52:41,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:41,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:52:41,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:41,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:52:41,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:41,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:52:41,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:41,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-19 15:52:41,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:41,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-19 15:52:41,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:41,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-19 15:52:41,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:41,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-12-19 15:52:41,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:41,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-12-19 15:52:41,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:41,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-19 15:52:41,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:41,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-19 15:52:41,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:41,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-19 15:52:41,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:41,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-19 15:52:41,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:41,649 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-19 15:52:41,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:52:41,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341376787] [2023-12-19 15:52:41,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [341376787] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:52:41,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:52:41,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 15:52:41,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709068812] [2023-12-19 15:52:41,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:52:41,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 15:52:41,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:52:41,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 15:52:41,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-19 15:52:41,651 INFO L87 Difference]: Start difference. First operand 104 states and 141 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-19 15:52:41,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:52:41,698 INFO L93 Difference]: Finished difference Result 227 states and 309 transitions. [2023-12-19 15:52:41,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-19 15:52:41,698 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 119 [2023-12-19 15:52:41,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:52:41,699 INFO L225 Difference]: With dead ends: 227 [2023-12-19 15:52:41,699 INFO L226 Difference]: Without dead ends: 124 [2023-12-19 15:52:41,699 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-12-19 15:52:41,700 INFO L413 NwaCegarLoop]: 131 mSDtfsCounter, 98 mSDsluCounter, 462 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 593 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 15:52:41,700 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 593 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 15:52:41,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2023-12-19 15:52:41,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 108. [2023-12-19 15:52:41,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 90 states have (on average 1.2777777777777777) internal successors, (115), 90 states have internal predecessors, (115), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-12-19 15:52:41,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 145 transitions. [2023-12-19 15:52:41,706 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 145 transitions. Word has length 119 [2023-12-19 15:52:41,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:52:41,707 INFO L495 AbstractCegarLoop]: Abstraction has 108 states and 145 transitions. [2023-12-19 15:52:41,707 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-19 15:52:41,707 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 145 transitions. [2023-12-19 15:52:41,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-19 15:52:41,708 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:52:41,708 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:52:41,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-19 15:52:41,708 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:52:41,708 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:52:41,708 INFO L85 PathProgramCache]: Analyzing trace with hash 2037408384, now seen corresponding path program 1 times [2023-12-19 15:52:41,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:52:41,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113413698] [2023-12-19 15:52:41,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:52:41,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:52:41,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:42,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:52:42,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:42,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:52:42,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:42,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:52:42,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:42,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:52:42,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:42,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:52:42,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:42,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:52:42,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:42,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-19 15:52:42,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:42,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-19 15:52:42,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:42,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-19 15:52:42,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:42,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-12-19 15:52:42,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:42,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-12-19 15:52:42,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:42,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-19 15:52:42,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:42,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-19 15:52:42,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:42,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-19 15:52:42,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:42,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-19 15:52:42,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:42,322 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-19 15:52:42,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:52:42,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113413698] [2023-12-19 15:52:42,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113413698] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:52:42,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:52:42,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-19 15:52:42,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217790481] [2023-12-19 15:52:42,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:52:42,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-19 15:52:42,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:52:42,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-19 15:52:42,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-19 15:52:42,323 INFO L87 Difference]: Start difference. First operand 108 states and 145 transitions. Second operand has 8 states, 7 states have (on average 7.0) internal successors, (49), 8 states have internal predecessors, (49), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-19 15:52:42,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:52:42,514 INFO L93 Difference]: Finished difference Result 228 states and 305 transitions. [2023-12-19 15:52:42,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-19 15:52:42,514 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.0) internal successors, (49), 8 states have internal predecessors, (49), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) Word has length 121 [2023-12-19 15:52:42,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:52:42,515 INFO L225 Difference]: With dead ends: 228 [2023-12-19 15:52:42,515 INFO L226 Difference]: Without dead ends: 121 [2023-12-19 15:52:42,515 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2023-12-19 15:52:42,516 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 113 mSDsluCounter, 442 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 536 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 15:52:42,516 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 536 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 304 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 15:52:42,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2023-12-19 15:52:42,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 101. [2023-12-19 15:52:42,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 83 states have (on average 1.2771084337349397) internal successors, (106), 83 states have internal predecessors, (106), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-12-19 15:52:42,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 136 transitions. [2023-12-19 15:52:42,522 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 136 transitions. Word has length 121 [2023-12-19 15:52:42,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:52:42,522 INFO L495 AbstractCegarLoop]: Abstraction has 101 states and 136 transitions. [2023-12-19 15:52:42,523 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.0) internal successors, (49), 8 states have internal predecessors, (49), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-19 15:52:42,523 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 136 transitions. [2023-12-19 15:52:42,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-19 15:52:42,523 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:52:42,523 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:52:42,523 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-19 15:52:42,524 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:52:42,524 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:52:42,524 INFO L85 PathProgramCache]: Analyzing trace with hash -751210596, now seen corresponding path program 1 times [2023-12-19 15:52:42,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:52:42,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414854992] [2023-12-19 15:52:42,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:52:42,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:52:42,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:42,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:52:42,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:42,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:52:42,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:42,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:52:42,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:42,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:52:42,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:42,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:52:42,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:42,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:52:42,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:42,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-19 15:52:42,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:42,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-19 15:52:42,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:42,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-19 15:52:42,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:42,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-12-19 15:52:42,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:42,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-12-19 15:52:42,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:42,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-19 15:52:42,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:42,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-19 15:52:42,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:42,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-19 15:52:42,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:42,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-19 15:52:42,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:42,996 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-19 15:52:42,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:52:42,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414854992] [2023-12-19 15:52:42,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414854992] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:52:42,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:52:42,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 15:52:42,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020660162] [2023-12-19 15:52:42,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:52:42,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 15:52:42,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:52:42,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 15:52:42,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-19 15:52:42,998 INFO L87 Difference]: Start difference. First operand 101 states and 136 transitions. Second operand has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-19 15:52:43,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:52:43,237 INFO L93 Difference]: Finished difference Result 295 states and 397 transitions. [2023-12-19 15:52:43,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-19 15:52:43,237 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) Word has length 121 [2023-12-19 15:52:43,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:52:43,238 INFO L225 Difference]: With dead ends: 295 [2023-12-19 15:52:43,238 INFO L226 Difference]: Without dead ends: 195 [2023-12-19 15:52:43,239 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-12-19 15:52:43,239 INFO L413 NwaCegarLoop]: 130 mSDtfsCounter, 198 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 411 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-19 15:52:43,239 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 411 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-19 15:52:43,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2023-12-19 15:52:43,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 110. [2023-12-19 15:52:43,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 92 states have (on average 1.2608695652173914) internal successors, (116), 92 states have internal predecessors, (116), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-12-19 15:52:43,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 146 transitions. [2023-12-19 15:52:43,246 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 146 transitions. Word has length 121 [2023-12-19 15:52:43,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:52:43,247 INFO L495 AbstractCegarLoop]: Abstraction has 110 states and 146 transitions. [2023-12-19 15:52:43,247 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-19 15:52:43,247 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 146 transitions. [2023-12-19 15:52:43,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2023-12-19 15:52:43,248 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:52:43,248 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:52:43,248 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-19 15:52:43,248 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:52:43,248 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:52:43,248 INFO L85 PathProgramCache]: Analyzing trace with hash -60439536, now seen corresponding path program 1 times [2023-12-19 15:52:43,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:52:43,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237948847] [2023-12-19 15:52:43,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:52:43,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:52:43,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:43,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:52:43,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:43,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:52:43,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:43,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:52:43,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:43,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:52:43,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:43,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:52:43,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:43,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:52:43,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:43,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-19 15:52:43,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:43,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-19 15:52:43,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:43,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-19 15:52:43,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:43,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-12-19 15:52:43,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:43,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-12-19 15:52:43,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:43,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-19 15:52:43,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:43,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-19 15:52:43,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:43,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-19 15:52:43,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:43,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-19 15:52:43,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:43,799 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-19 15:52:43,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:52:43,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237948847] [2023-12-19 15:52:43,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237948847] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:52:43,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:52:43,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 15:52:43,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053520505] [2023-12-19 15:52:43,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:52:43,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 15:52:43,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:52:43,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 15:52:43,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-19 15:52:43,800 INFO L87 Difference]: Start difference. First operand 110 states and 146 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, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-19 15:52:44,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:52:44,167 INFO L93 Difference]: Finished difference Result 327 states and 434 transitions. [2023-12-19 15:52:44,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-19 15:52:44,167 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, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 123 [2023-12-19 15:52:44,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:52:44,168 INFO L225 Difference]: With dead ends: 327 [2023-12-19 15:52:44,168 INFO L226 Difference]: Without dead ends: 218 [2023-12-19 15:52:44,169 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2023-12-19 15:52:44,169 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 171 mSDsluCounter, 581 mSDsCounter, 0 mSdLazyCounter, 322 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 703 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-19 15:52:44,169 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 703 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 322 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-19 15:52:44,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2023-12-19 15:52:44,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 207. [2023-12-19 15:52:44,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 176 states have (on average 1.2613636363636365) internal successors, (222), 177 states have internal predecessors, (222), 26 states have call successors, (26), 4 states have call predecessors, (26), 4 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2023-12-19 15:52:44,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 274 transitions. [2023-12-19 15:52:44,183 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 274 transitions. Word has length 123 [2023-12-19 15:52:44,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:52:44,184 INFO L495 AbstractCegarLoop]: Abstraction has 207 states and 274 transitions. [2023-12-19 15:52:44,184 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, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-19 15:52:44,184 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 274 transitions. [2023-12-19 15:52:44,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-12-19 15:52:44,185 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:52:44,185 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:52:44,185 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-19 15:52:44,185 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:52:44,185 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:52:44,185 INFO L85 PathProgramCache]: Analyzing trace with hash -1482806458, now seen corresponding path program 1 times [2023-12-19 15:52:44,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:52:44,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45188685] [2023-12-19 15:52:44,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:52:44,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:52:44,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:44,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:52:44,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:44,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:52:44,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:44,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:52:44,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:44,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:52:44,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:44,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:52:44,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:44,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:52:44,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:44,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-19 15:52:44,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:44,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-19 15:52:44,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:44,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-19 15:52:44,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:44,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-12-19 15:52:44,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:44,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-12-19 15:52:44,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:44,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-19 15:52:44,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:44,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-19 15:52:44,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:44,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-19 15:52:44,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:44,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-19 15:52:44,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:44,357 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-19 15:52:44,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:52:44,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45188685] [2023-12-19 15:52:44,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45188685] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:52:44,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:52:44,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-19 15:52:44,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029217560] [2023-12-19 15:52:44,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:52:44,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 15:52:44,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:52:44,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 15:52:44,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-19 15:52:44,359 INFO L87 Difference]: Start difference. First operand 207 states and 274 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-19 15:52:44,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:52:44,519 INFO L93 Difference]: Finished difference Result 439 states and 581 transitions. [2023-12-19 15:52:44,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-19 15:52:44,520 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 124 [2023-12-19 15:52:44,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:52:44,522 INFO L225 Difference]: With dead ends: 439 [2023-12-19 15:52:44,523 INFO L226 Difference]: Without dead ends: 233 [2023-12-19 15:52:44,523 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-19 15:52:44,524 INFO L413 NwaCegarLoop]: 158 mSDtfsCounter, 83 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 460 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 15:52:44,524 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 460 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 15:52:44,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2023-12-19 15:52:44,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 211. [2023-12-19 15:52:44,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 179 states have (on average 1.2513966480446927) internal successors, (224), 180 states have internal predecessors, (224), 26 states have call successors, (26), 5 states have call predecessors, (26), 5 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2023-12-19 15:52:44,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 276 transitions. [2023-12-19 15:52:44,543 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 276 transitions. Word has length 124 [2023-12-19 15:52:44,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:52:44,544 INFO L495 AbstractCegarLoop]: Abstraction has 211 states and 276 transitions. [2023-12-19 15:52:44,544 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-19 15:52:44,544 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 276 transitions. [2023-12-19 15:52:44,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-12-19 15:52:44,545 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:52:44,545 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:52:44,545 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-19 15:52:44,545 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:52:44,545 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:52:44,545 INFO L85 PathProgramCache]: Analyzing trace with hash 1162199371, now seen corresponding path program 1 times [2023-12-19 15:52:44,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:52:44,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860178831] [2023-12-19 15:52:44,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:52:44,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:52:44,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:45,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:52:45,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:45,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:52:45,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:45,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:52:45,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:45,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:52:45,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:45,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:52:45,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:45,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:52:45,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:45,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-19 15:52:45,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:45,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-19 15:52:45,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:45,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-19 15:52:45,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:45,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-12-19 15:52:45,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:45,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-12-19 15:52:45,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:45,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-19 15:52:45,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:45,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-19 15:52:45,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:45,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-19 15:52:45,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:45,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-19 15:52:45,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:45,037 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-19 15:52:45,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:52:45,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860178831] [2023-12-19 15:52:45,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860178831] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:52:45,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:52:45,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-19 15:52:45,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075999313] [2023-12-19 15:52:45,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:52:45,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-19 15:52:45,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:52:45,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-19 15:52:45,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-19 15:52:45,038 INFO L87 Difference]: Start difference. First operand 211 states and 276 transitions. Second operand has 8 states, 6 states have (on average 8.833333333333334) internal successors, (53), 8 states have internal predecessors, (53), 3 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 3 states have call successors, (15) [2023-12-19 15:52:45,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:52:45,305 INFO L93 Difference]: Finished difference Result 360 states and 465 transitions. [2023-12-19 15:52:45,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-19 15:52:45,320 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 8.833333333333334) internal successors, (53), 8 states have internal predecessors, (53), 3 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 3 states have call successors, (15) Word has length 125 [2023-12-19 15:52:45,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:52:45,322 INFO L225 Difference]: With dead ends: 360 [2023-12-19 15:52:45,322 INFO L226 Difference]: Without dead ends: 358 [2023-12-19 15:52:45,322 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-12-19 15:52:45,323 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 89 mSDsluCounter, 380 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-19 15:52:45,323 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 466 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 386 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-19 15:52:45,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2023-12-19 15:52:45,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 355. [2023-12-19 15:52:45,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 294 states have (on average 1.2244897959183674) internal successors, (360), 297 states have internal predecessors, (360), 50 states have call successors, (50), 10 states have call predecessors, (50), 10 states have return successors, (50), 47 states have call predecessors, (50), 50 states have call successors, (50) [2023-12-19 15:52:45,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 460 transitions. [2023-12-19 15:52:45,387 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 460 transitions. Word has length 125 [2023-12-19 15:52:45,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:52:45,387 INFO L495 AbstractCegarLoop]: Abstraction has 355 states and 460 transitions. [2023-12-19 15:52:45,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 8.833333333333334) internal successors, (53), 8 states have internal predecessors, (53), 3 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 3 states have call successors, (15) [2023-12-19 15:52:45,387 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 460 transitions. [2023-12-19 15:52:45,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-12-19 15:52:45,388 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:52:45,388 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:52:45,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-19 15:52:45,388 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:52:45,388 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:52:45,388 INFO L85 PathProgramCache]: Analyzing trace with hash -908567350, now seen corresponding path program 1 times [2023-12-19 15:52:45,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:52:45,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010126011] [2023-12-19 15:52:45,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:52:45,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:52:45,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:45,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:52:45,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:45,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:52:45,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:45,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:52:45,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:45,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:52:45,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:45,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:52:45,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:45,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:52:45,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:45,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-19 15:52:45,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:45,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-19 15:52:45,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:45,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-19 15:52:45,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:45,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-12-19 15:52:45,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:45,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-12-19 15:52:45,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:45,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-19 15:52:45,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:45,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-19 15:52:45,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:45,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-19 15:52:45,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:45,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-19 15:52:45,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:45,590 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-19 15:52:45,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:52:45,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010126011] [2023-12-19 15:52:45,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010126011] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:52:45,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:52:45,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-19 15:52:45,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641622296] [2023-12-19 15:52:45,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:52:45,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 15:52:45,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:52:45,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 15:52:45,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-19 15:52:45,592 INFO L87 Difference]: Start difference. First operand 355 states and 460 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, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-19 15:52:45,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:52:45,741 INFO L93 Difference]: Finished difference Result 717 states and 925 transitions. [2023-12-19 15:52:45,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 15:52:45,742 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, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 125 [2023-12-19 15:52:45,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:52:45,743 INFO L225 Difference]: With dead ends: 717 [2023-12-19 15:52:45,743 INFO L226 Difference]: Without dead ends: 363 [2023-12-19 15:52:45,744 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-19 15:52:45,744 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 75 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 15:52:45,744 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 350 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 15:52:45,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2023-12-19 15:52:45,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 353. [2023-12-19 15:52:45,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 353 states, 290 states have (on average 1.210344827586207) internal successors, (351), 293 states have internal predecessors, (351), 50 states have call successors, (50), 12 states have call predecessors, (50), 12 states have return successors, (50), 47 states have call predecessors, (50), 50 states have call successors, (50) [2023-12-19 15:52:45,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 451 transitions. [2023-12-19 15:52:45,775 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 451 transitions. Word has length 125 [2023-12-19 15:52:45,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:52:45,776 INFO L495 AbstractCegarLoop]: Abstraction has 353 states and 451 transitions. [2023-12-19 15:52:45,776 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, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-19 15:52:45,776 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 451 transitions. [2023-12-19 15:52:45,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-12-19 15:52:45,777 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:52:45,777 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:52:45,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-19 15:52:45,777 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:52:45,777 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:52:45,777 INFO L85 PathProgramCache]: Analyzing trace with hash -2003579264, now seen corresponding path program 1 times [2023-12-19 15:52:45,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:52:45,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364735896] [2023-12-19 15:52:45,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:52:45,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:52:45,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:46,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:52:46,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:46,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:52:46,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:46,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:52:46,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:46,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:52:46,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:46,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:52:46,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:46,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:52:46,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:46,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-19 15:52:46,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:46,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-19 15:52:46,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:46,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-19 15:52:46,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:46,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-12-19 15:52:46,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:46,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-12-19 15:52:46,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:46,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-19 15:52:46,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:46,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-19 15:52:46,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:46,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-19 15:52:46,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:46,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-19 15:52:46,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:46,057 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-19 15:52:46,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:52:46,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364735896] [2023-12-19 15:52:46,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364735896] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:52:46,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:52:46,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-19 15:52:46,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40849930] [2023-12-19 15:52:46,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:52:46,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-19 15:52:46,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:52:46,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-19 15:52:46,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-19 15:52:46,058 INFO L87 Difference]: Start difference. First operand 353 states and 451 transitions. Second operand has 9 states, 9 states have (on average 6.0) internal successors, (54), 9 states have internal predecessors, (54), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-19 15:52:46,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:52:46,398 INFO L93 Difference]: Finished difference Result 898 states and 1147 transitions. [2023-12-19 15:52:46,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-19 15:52:46,399 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 9 states have internal predecessors, (54), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 126 [2023-12-19 15:52:46,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:52:46,404 INFO L225 Difference]: With dead ends: 898 [2023-12-19 15:52:46,404 INFO L226 Difference]: Without dead ends: 546 [2023-12-19 15:52:46,405 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=102, Invalid=278, Unknown=0, NotChecked=0, Total=380 [2023-12-19 15:52:46,405 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 216 mSDsluCounter, 995 mSDsCounter, 0 mSdLazyCounter, 425 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 1157 SdHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-19 15:52:46,406 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [216 Valid, 1157 Invalid, 437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 425 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-19 15:52:46,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 546 states. [2023-12-19 15:52:46,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 546 to 516. [2023-12-19 15:52:46,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 516 states, 433 states have (on average 1.210161662817552) internal successors, (524), 438 states have internal predecessors, (524), 64 states have call successors, (64), 18 states have call predecessors, (64), 18 states have return successors, (64), 59 states have call predecessors, (64), 64 states have call successors, (64) [2023-12-19 15:52:46,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 652 transitions. [2023-12-19 15:52:46,455 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 652 transitions. Word has length 126 [2023-12-19 15:52:46,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:52:46,455 INFO L495 AbstractCegarLoop]: Abstraction has 516 states and 652 transitions. [2023-12-19 15:52:46,456 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 9 states have internal predecessors, (54), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-19 15:52:46,456 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 652 transitions. [2023-12-19 15:52:46,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-12-19 15:52:46,456 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:52:46,457 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:52:46,457 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-19 15:52:46,457 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:52:46,457 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:52:46,457 INFO L85 PathProgramCache]: Analyzing trace with hash -80351230, now seen corresponding path program 1 times [2023-12-19 15:52:46,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:52:46,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396914752] [2023-12-19 15:52:46,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:52:46,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:52:46,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:46,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:52:46,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:46,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:52:46,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:46,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:52:46,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:46,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:52:46,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:46,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:52:46,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:46,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:52:46,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:46,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-19 15:52:46,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:46,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-19 15:52:46,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:46,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-19 15:52:46,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:46,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-12-19 15:52:46,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:46,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-12-19 15:52:46,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:46,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-19 15:52:46,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:46,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-19 15:52:46,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:46,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-19 15:52:46,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:46,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-19 15:52:46,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:46,593 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-19 15:52:46,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:52:46,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396914752] [2023-12-19 15:52:46,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396914752] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:52:46,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:52:46,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-19 15:52:46,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047889576] [2023-12-19 15:52:46,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:52:46,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 15:52:46,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:52:46,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 15:52:46,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-19 15:52:46,594 INFO L87 Difference]: Start difference. First operand 516 states and 652 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-19 15:52:46,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:52:46,835 INFO L93 Difference]: Finished difference Result 1263 states and 1604 transitions. [2023-12-19 15:52:46,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-19 15:52:46,836 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 126 [2023-12-19 15:52:46,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:52:46,838 INFO L225 Difference]: With dead ends: 1263 [2023-12-19 15:52:46,838 INFO L226 Difference]: Without dead ends: 748 [2023-12-19 15:52:46,839 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-12-19 15:52:46,839 INFO L413 NwaCegarLoop]: 152 mSDtfsCounter, 180 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 369 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-19 15:52:46,840 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 369 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-19 15:52:46,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 748 states. [2023-12-19 15:52:46,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 748 to 517. [2023-12-19 15:52:46,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 517 states, 434 states have (on average 1.2027649769585254) internal successors, (522), 439 states have internal predecessors, (522), 64 states have call successors, (64), 18 states have call predecessors, (64), 18 states have return successors, (64), 59 states have call predecessors, (64), 64 states have call successors, (64) [2023-12-19 15:52:46,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 650 transitions. [2023-12-19 15:52:46,885 INFO L78 Accepts]: Start accepts. Automaton has 517 states and 650 transitions. Word has length 126 [2023-12-19 15:52:46,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:52:46,885 INFO L495 AbstractCegarLoop]: Abstraction has 517 states and 650 transitions. [2023-12-19 15:52:46,885 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-19 15:52:46,886 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states and 650 transitions. [2023-12-19 15:52:46,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-12-19 15:52:46,886 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:52:46,886 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:52:46,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-19 15:52:46,887 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:52:46,887 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:52:46,887 INFO L85 PathProgramCache]: Analyzing trace with hash -1289567892, now seen corresponding path program 1 times [2023-12-19 15:52:46,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:52:46,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254836768] [2023-12-19 15:52:46,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:52:46,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:52:46,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:47,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:52:47,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:47,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:52:47,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:47,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:52:47,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:47,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:52:47,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:47,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:52:47,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:47,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:52:47,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:47,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-19 15:52:47,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:47,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-19 15:52:47,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:47,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-19 15:52:47,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:47,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-12-19 15:52:47,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:47,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-12-19 15:52:47,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:47,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-19 15:52:47,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:47,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-19 15:52:47,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:47,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-19 15:52:47,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:47,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-19 15:52:47,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:47,309 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 15 proven. 27 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2023-12-19 15:52:47,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:52:47,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254836768] [2023-12-19 15:52:47,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254836768] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 15:52:47,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2048987193] [2023-12-19 15:52:47,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:52:47,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:52:47,309 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:52:47,312 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) [2023-12-19 15:52:47,352 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-19 15:52:47,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:47,496 INFO L262 TraceCheckSpWp]: Trace formula consists of 414 conjuncts, 30 conjunts are in the unsatisfiable core [2023-12-19 15:52:47,518 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:52:47,564 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:52:47,564 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2023-12-19 15:52:47,596 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 17 [2023-12-19 15:52:47,612 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 17 [2023-12-19 15:52:47,630 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 17 [2023-12-19 15:52:47,648 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 17 [2023-12-19 15:52:47,667 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 17 [2023-12-19 15:52:47,686 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 24 [2023-12-19 15:52:47,707 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:52:47,707 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 27 [2023-12-19 15:52:47,716 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:52:47,716 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 14 [2023-12-19 15:52:47,724 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 204 proven. 27 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2023-12-19 15:52:47,724 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 15:52:47,880 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 15 proven. 27 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2023-12-19 15:52:47,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2048987193] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-19 15:52:47,880 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-19 15:52:47,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 12 [2023-12-19 15:52:47,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089478309] [2023-12-19 15:52:47,880 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-19 15:52:47,881 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-19 15:52:47,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:52:47,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-19 15:52:47,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2023-12-19 15:52:47,881 INFO L87 Difference]: Start difference. First operand 517 states and 650 transitions. Second operand has 12 states, 10 states have (on average 7.1) internal successors, (71), 12 states have internal predecessors, (71), 4 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (25), 2 states have call predecessors, (25), 4 states have call successors, (25) [2023-12-19 15:52:48,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:52:48,472 INFO L93 Difference]: Finished difference Result 1053 states and 1303 transitions. [2023-12-19 15:52:48,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-12-19 15:52:48,472 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 7.1) internal successors, (71), 12 states have internal predecessors, (71), 4 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (25), 2 states have call predecessors, (25), 4 states have call successors, (25) Word has length 127 [2023-12-19 15:52:48,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:52:48,474 INFO L225 Difference]: With dead ends: 1053 [2023-12-19 15:52:48,474 INFO L226 Difference]: Without dead ends: 537 [2023-12-19 15:52:48,475 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 314 GetRequests, 276 SyntacticMatches, 11 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=203, Invalid=609, Unknown=0, NotChecked=0, Total=812 [2023-12-19 15:52:48,475 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 354 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 697 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 364 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 794 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 697 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-19 15:52:48,475 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [364 Valid, 251 Invalid, 794 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 697 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-19 15:52:48,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2023-12-19 15:52:48,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 521. [2023-12-19 15:52:48,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 521 states, 412 states have (on average 1.1577669902912622) internal successors, (477), 418 states have internal predecessors, (477), 79 states have call successors, (79), 29 states have call predecessors, (79), 29 states have return successors, (79), 73 states have call predecessors, (79), 79 states have call successors, (79) [2023-12-19 15:52:48,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 521 states to 521 states and 635 transitions. [2023-12-19 15:52:48,519 INFO L78 Accepts]: Start accepts. Automaton has 521 states and 635 transitions. Word has length 127 [2023-12-19 15:52:48,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:52:48,520 INFO L495 AbstractCegarLoop]: Abstraction has 521 states and 635 transitions. [2023-12-19 15:52:48,520 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 7.1) internal successors, (71), 12 states have internal predecessors, (71), 4 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (25), 2 states have call predecessors, (25), 4 states have call successors, (25) [2023-12-19 15:52:48,520 INFO L276 IsEmpty]: Start isEmpty. Operand 521 states and 635 transitions. [2023-12-19 15:52:48,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-12-19 15:52:48,520 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:52:48,521 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:52:48,547 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-12-19 15:52:48,726 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,SelfDestructingSolverStorable17 [2023-12-19 15:52:48,726 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:52:48,726 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:52:48,727 INFO L85 PathProgramCache]: Analyzing trace with hash -1108951021, now seen corresponding path program 1 times [2023-12-19 15:52:48,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:52:48,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566768849] [2023-12-19 15:52:48,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:52:48,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:52:48,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:48,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:52:48,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:48,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:52:48,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:48,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:52:48,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:48,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:52:48,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:48,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:52:48,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:48,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:52:48,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:48,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-19 15:52:48,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:48,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-19 15:52:48,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:48,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-19 15:52:48,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:48,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-12-19 15:52:48,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:48,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-12-19 15:52:48,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:48,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-19 15:52:48,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:48,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-19 15:52:48,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:48,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-19 15:52:48,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:48,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-19 15:52:48,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:48,854 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-19 15:52:48,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:52:48,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566768849] [2023-12-19 15:52:48,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566768849] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:52:48,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:52:48,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-19 15:52:48,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942777614] [2023-12-19 15:52:48,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:52:48,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 15:52:48,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:52:48,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 15:52:48,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-19 15:52:48,856 INFO L87 Difference]: Start difference. First operand 521 states and 635 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, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-19 15:52:49,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:52:49,023 INFO L93 Difference]: Finished difference Result 770 states and 932 transitions. [2023-12-19 15:52:49,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 15:52:49,023 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, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 127 [2023-12-19 15:52:49,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:52:49,024 INFO L225 Difference]: With dead ends: 770 [2023-12-19 15:52:49,024 INFO L226 Difference]: Without dead ends: 305 [2023-12-19 15:52:49,025 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-19 15:52:49,025 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 85 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 15:52:49,025 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 348 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 15:52:49,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2023-12-19 15:52:49,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 248. [2023-12-19 15:52:49,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 201 states have (on average 1.1293532338308458) internal successors, (227), 203 states have internal predecessors, (227), 33 states have call successors, (33), 13 states have call predecessors, (33), 13 states have return successors, (33), 31 states have call predecessors, (33), 33 states have call successors, (33) [2023-12-19 15:52:49,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 293 transitions. [2023-12-19 15:52:49,046 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 293 transitions. Word has length 127 [2023-12-19 15:52:49,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:52:49,046 INFO L495 AbstractCegarLoop]: Abstraction has 248 states and 293 transitions. [2023-12-19 15:52:49,046 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, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-19 15:52:49,046 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 293 transitions. [2023-12-19 15:52:49,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-12-19 15:52:49,048 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:52:49,048 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:52:49,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-19 15:52:49,048 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:52:49,048 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:52:49,048 INFO L85 PathProgramCache]: Analyzing trace with hash -1610406102, now seen corresponding path program 1 times [2023-12-19 15:52:49,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:52:49,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085104943] [2023-12-19 15:52:49,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:52:49,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:52:49,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:49,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:52:49,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:49,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:52:49,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:49,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:52:49,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:49,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:52:49,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:49,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:52:49,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:49,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:52:49,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:49,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-19 15:52:49,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:49,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-19 15:52:49,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:49,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-19 15:52:49,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:49,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-12-19 15:52:49,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:49,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-12-19 15:52:49,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:49,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-19 15:52:49,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:49,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-19 15:52:49,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:49,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-19 15:52:49,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:49,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-19 15:52:49,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:49,097 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-19 15:52:49,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:52:49,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085104943] [2023-12-19 15:52:49,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085104943] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:52:49,098 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:52:49,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 15:52:49,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405685802] [2023-12-19 15:52:49,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:52:49,098 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 15:52:49,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:52:49,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 15:52:49,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 15:52:49,099 INFO L87 Difference]: Start difference. First operand 248 states and 293 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-19 15:52:49,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:52:49,128 INFO L93 Difference]: Finished difference Result 507 states and 600 transitions. [2023-12-19 15:52:49,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 15:52:49,129 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 128 [2023-12-19 15:52:49,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:52:49,130 INFO L225 Difference]: With dead ends: 507 [2023-12-19 15:52:49,130 INFO L226 Difference]: Without dead ends: 260 [2023-12-19 15:52:49,131 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 15:52:49,132 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 6 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 194 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 [2023-12-19 15:52:49,132 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 194 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 15:52:49,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2023-12-19 15:52:49,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 251. [2023-12-19 15:52:49,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 204 states have (on average 1.1274509803921569) internal successors, (230), 206 states have internal predecessors, (230), 33 states have call successors, (33), 13 states have call predecessors, (33), 13 states have return successors, (33), 31 states have call predecessors, (33), 33 states have call successors, (33) [2023-12-19 15:52:49,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 296 transitions. [2023-12-19 15:52:49,154 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 296 transitions. Word has length 128 [2023-12-19 15:52:49,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:52:49,155 INFO L495 AbstractCegarLoop]: Abstraction has 251 states and 296 transitions. [2023-12-19 15:52:49,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-19 15:52:49,155 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 296 transitions. [2023-12-19 15:52:49,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-12-19 15:52:49,155 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:52:49,156 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:52:49,156 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-19 15:52:49,156 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:52:49,156 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:52:49,156 INFO L85 PathProgramCache]: Analyzing trace with hash 164601260, now seen corresponding path program 1 times [2023-12-19 15:52:49,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:52:49,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903292267] [2023-12-19 15:52:49,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:52:49,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:52:49,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:49,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 15:52:49,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:49,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 15:52:49,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:49,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 15:52:49,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:49,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 15:52:49,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:49,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 15:52:49,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:49,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 15:52:49,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:49,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-19 15:52:49,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:49,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-19 15:52:49,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:49,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-19 15:52:49,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:49,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-12-19 15:52:49,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:49,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-12-19 15:52:49,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:49,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-19 15:52:49,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:49,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-19 15:52:49,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:49,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-19 15:52:49,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:49,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-19 15:52:49,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:52:49,297 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-19 15:52:49,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:52:49,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903292267] [2023-12-19 15:52:49,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903292267] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:52:49,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:52:49,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-19 15:52:49,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922620873] [2023-12-19 15:52:49,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:52:49,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 15:52:49,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:52:49,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 15:52:49,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-19 15:52:49,300 INFO L87 Difference]: Start difference. First operand 251 states and 296 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-19 15:52:49,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:52:49,409 INFO L93 Difference]: Finished difference Result 529 states and 621 transitions. [2023-12-19 15:52:49,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 15:52:49,410 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 128 [2023-12-19 15:52:49,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:52:49,410 INFO L225 Difference]: With dead ends: 529 [2023-12-19 15:52:49,410 INFO L226 Difference]: Without dead ends: 0 [2023-12-19 15:52:49,411 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-19 15:52:49,411 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 60 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 15:52:49,412 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 323 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 15:52:49,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-19 15:52:49,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-19 15:52:49,412 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) [2023-12-19 15:52:49,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-19 15:52:49,412 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 128 [2023-12-19 15:52:49,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:52:49,412 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-19 15:52:49,412 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-19 15:52:49,412 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-19 15:52:49,412 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-19 15:52:49,414 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-19 15:52:49,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-19 15:52:49,416 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-19 15:52:50,376 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line 20) the Hoare annotation is: true [2023-12-19 15:52:50,376 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2023-12-19 15:52:50,376 INFO L899 garLoopResultBuilder]: For program point L20-2(line 20) no Hoare annotation was computed. [2023-12-19 15:52:50,376 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(line 20) no Hoare annotation was computed. [2023-12-19 15:52:50,376 INFO L899 garLoopResultBuilder]: For program point L117-21(line 117) no Hoare annotation was computed. [2023-12-19 15:52:50,376 INFO L899 garLoopResultBuilder]: For program point L117-23(line 117) no Hoare annotation was computed. [2023-12-19 15:52:50,376 INFO L899 garLoopResultBuilder]: For program point L117-25(line 117) no Hoare annotation was computed. [2023-12-19 15:52:50,376 INFO L899 garLoopResultBuilder]: For program point L117-26(line 117) no Hoare annotation was computed. [2023-12-19 15:52:50,376 INFO L899 garLoopResultBuilder]: For program point L117-27(line 117) no Hoare annotation was computed. [2023-12-19 15:52:50,376 INFO L899 garLoopResultBuilder]: For program point L117-29(line 117) no Hoare annotation was computed. [2023-12-19 15:52:50,376 INFO L899 garLoopResultBuilder]: For program point L117-30(line 117) no Hoare annotation was computed. [2023-12-19 15:52:50,376 INFO L899 garLoopResultBuilder]: For program point L117-31(line 117) no Hoare annotation was computed. [2023-12-19 15:52:50,376 INFO L899 garLoopResultBuilder]: For program point L117-32(line 117) no Hoare annotation was computed. [2023-12-19 15:52:50,376 INFO L899 garLoopResultBuilder]: For program point L117-34(line 117) no Hoare annotation was computed. [2023-12-19 15:52:50,376 INFO L899 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2023-12-19 15:52:50,376 INFO L899 garLoopResultBuilder]: For program point L117-35(line 117) no Hoare annotation was computed. [2023-12-19 15:52:50,376 INFO L899 garLoopResultBuilder]: For program point L19-1(line 19) no Hoare annotation was computed. [2023-12-19 15:52:50,376 INFO L899 garLoopResultBuilder]: For program point L117-37(line 117) no Hoare annotation was computed. [2023-12-19 15:52:50,377 INFO L899 garLoopResultBuilder]: For program point L19-3(line 19) no Hoare annotation was computed. [2023-12-19 15:52:50,377 INFO L899 garLoopResultBuilder]: For program point L117-39(line 117) no Hoare annotation was computed. [2023-12-19 15:52:50,377 INFO L899 garLoopResultBuilder]: For program point L117-41(line 117) no Hoare annotation was computed. [2023-12-19 15:52:50,377 INFO L899 garLoopResultBuilder]: For program point L117-43(line 117) no Hoare annotation was computed. [2023-12-19 15:52:50,377 INFO L895 garLoopResultBuilder]: At program point L102(line 102) the Hoare annotation is: (let ((.cse1 (select |#memory_int#1| |~#WrapperStruct00~0.base|))) (and (let ((.cse0 (select .cse1 (+ |~#WrapperStruct00~0.offset| 6)))) (<= .cse0 (* (div .cse0 256) 256))) (let ((.cse2 (select .cse1 (+ |~#WrapperStruct00~0.offset| 28)))) (<= .cse2 (let ((.cse3 (select .cse1 (+ |~#WrapperStruct00~0.offset| 27)))) (+ (* (div (+ .cse2 (* (- 1) .cse3)) 256) 256) .cse3)))))) [2023-12-19 15:52:50,377 INFO L899 garLoopResultBuilder]: For program point L102-1(line 102) no Hoare annotation was computed. [2023-12-19 15:52:50,377 INFO L899 garLoopResultBuilder]: For program point L54(lines 54 87) no Hoare annotation was computed. [2023-12-19 15:52:50,377 INFO L895 garLoopResultBuilder]: At program point L104(line 104) the Hoare annotation is: (let ((.cse1 (select |#memory_int#1| |~#WrapperStruct00~0.base|))) (and (let ((.cse0 (select .cse1 (+ |~#WrapperStruct00~0.offset| 6)))) (<= .cse0 (* (div .cse0 256) 256))) (let ((.cse2 (select .cse1 (+ |~#WrapperStruct00~0.offset| 28)))) (<= .cse2 (let ((.cse3 (select .cse1 (+ |~#WrapperStruct00~0.offset| 27)))) (+ (* (div (+ .cse2 (* (- 1) .cse3)) 256) 256) .cse3)))))) [2023-12-19 15:52:50,377 INFO L899 garLoopResultBuilder]: For program point L104-1(line 104) no Hoare annotation was computed. [2023-12-19 15:52:50,377 INFO L895 garLoopResultBuilder]: At program point L105(line 105) the Hoare annotation is: (let ((.cse1 (select |#memory_int#1| |~#WrapperStruct00~0.base|))) (and (let ((.cse0 (select .cse1 (+ |~#WrapperStruct00~0.offset| 6)))) (<= .cse0 (* (div .cse0 256) 256))) (let ((.cse2 (select .cse1 (+ |~#WrapperStruct00~0.offset| 28)))) (<= .cse2 (let ((.cse3 (select .cse1 (+ |~#WrapperStruct00~0.offset| 27)))) (+ (* (div (+ .cse2 (* (- 1) .cse3)) 256) 256) .cse3)))))) [2023-12-19 15:52:50,377 INFO L899 garLoopResultBuilder]: For program point L105-1(line 105) no Hoare annotation was computed. [2023-12-19 15:52:50,377 INFO L899 garLoopResultBuilder]: For program point L56(lines 56 60) no Hoare annotation was computed. [2023-12-19 15:52:50,377 INFO L899 garLoopResultBuilder]: For program point L56-2(lines 56 60) no Hoare annotation was computed. [2023-12-19 15:52:50,377 INFO L899 garLoopResultBuilder]: For program point L73(lines 73 77) no Hoare annotation was computed. [2023-12-19 15:52:50,378 INFO L899 garLoopResultBuilder]: For program point L73-1(lines 73 77) no Hoare annotation was computed. [2023-12-19 15:52:50,378 INFO L895 garLoopResultBuilder]: At program point L90(line 90) the Hoare annotation is: (let ((.cse1 (select |#memory_int#1| |~#WrapperStruct00~0.base|))) (let ((.cse2 (let ((.cse9 (select .cse1 (+ |~#WrapperStruct00~0.offset| 28)))) (<= .cse9 (let ((.cse10 (select .cse1 (+ |~#WrapperStruct00~0.offset| 27)))) (+ (* (div (+ .cse9 (* (- 1) .cse10)) 256) 256) .cse10))))) (.cse0 (select .cse1 (+ |~#WrapperStruct00~0.offset| 6)))) (or (and (<= .cse0 (* (div .cse0 256) 256)) (not (= (select .cse1 (+ |~#WrapperStruct00~0.offset| 2)) (select .cse1 (+ |~#WrapperStruct00~0.offset| 25)))) .cse2) (let ((.cse6 (select .cse1 (+ |~#WrapperStruct00~0.offset| 26)))) (let ((.cse8 (+ .cse6 240))) (let ((.cse4 (+ 112 .cse6)) (.cse7 (select .cse1 (+ 23 |~#WrapperStruct00~0.offset|))) (.cse5 (* 256 (div .cse8 256))) (.cse3 (select .cse1 |~#WrapperStruct00~0.offset|))) (and (<= .cse3 (* (div .cse3 256) 256)) (or (< .cse4 .cse5) (= .cse6 (+ .cse7 16 .cse5))) (or (< .cse6 (+ (* (div .cse4 256) 256) 16)) (= (+ .cse7 .cse5) .cse8)) .cse2 (= .cse0 .cse3)))))))) [2023-12-19 15:52:50,378 INFO L899 garLoopResultBuilder]: For program point L90-1(line 90) no Hoare annotation was computed. [2023-12-19 15:52:50,378 INFO L895 garLoopResultBuilder]: At program point L123-2(lines 123 129) the Hoare annotation is: (let ((.cse1 (select |#memory_int#1| |~#WrapperStruct00~0.base|))) (let ((.cse2 (let ((.cse9 (select .cse1 (+ |~#WrapperStruct00~0.offset| 28)))) (<= .cse9 (let ((.cse10 (select .cse1 (+ |~#WrapperStruct00~0.offset| 27)))) (+ (* (div (+ .cse9 (* (- 1) .cse10)) 256) 256) .cse10))))) (.cse0 (select .cse1 (+ |~#WrapperStruct00~0.offset| 6)))) (or (and (<= .cse0 (* (div .cse0 256) 256)) (not (= (select .cse1 (+ |~#WrapperStruct00~0.offset| 2)) (select .cse1 (+ |~#WrapperStruct00~0.offset| 25)))) .cse2) (let ((.cse6 (select .cse1 (+ |~#WrapperStruct00~0.offset| 26)))) (let ((.cse8 (+ .cse6 240))) (let ((.cse4 (+ 112 .cse6)) (.cse7 (select .cse1 (+ 23 |~#WrapperStruct00~0.offset|))) (.cse5 (* 256 (div .cse8 256))) (.cse3 (select .cse1 |~#WrapperStruct00~0.offset|))) (and (<= .cse3 (* (div .cse3 256) 256)) (or (< .cse4 .cse5) (= .cse6 (+ .cse7 16 .cse5))) (or (< .cse6 (+ (* (div .cse4 256) 256) 16)) (= (+ .cse7 .cse5) .cse8)) .cse2 (= .cse0 .cse3)))))))) [2023-12-19 15:52:50,378 INFO L899 garLoopResultBuilder]: For program point L123-3(lines 123 129) no Hoare annotation was computed. [2023-12-19 15:52:50,378 INFO L895 garLoopResultBuilder]: At program point L107(line 107) the Hoare annotation is: (let ((.cse1 (select |#memory_int#1| |~#WrapperStruct00~0.base|))) (and (let ((.cse0 (select .cse1 (+ |~#WrapperStruct00~0.offset| 6)))) (<= .cse0 (* (div .cse0 256) 256))) (let ((.cse2 (select .cse1 (+ |~#WrapperStruct00~0.offset| 28)))) (<= .cse2 (let ((.cse3 (select .cse1 (+ |~#WrapperStruct00~0.offset| 27)))) (+ (* (div (+ .cse2 (* (- 1) .cse3)) 256) 256) .cse3)))))) [2023-12-19 15:52:50,378 INFO L899 garLoopResultBuilder]: For program point L107-1(line 107) no Hoare annotation was computed. [2023-12-19 15:52:50,378 INFO L899 garLoopResultBuilder]: For program point L74(lines 74 76) no Hoare annotation was computed. [2023-12-19 15:52:50,378 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-19 15:52:50,379 INFO L895 garLoopResultBuilder]: At program point L91(line 91) the Hoare annotation is: (let ((.cse1 (select |#memory_int#1| |~#WrapperStruct00~0.base|))) (let ((.cse2 (let ((.cse9 (select .cse1 (+ |~#WrapperStruct00~0.offset| 28)))) (<= .cse9 (let ((.cse10 (select .cse1 (+ |~#WrapperStruct00~0.offset| 27)))) (+ (* (div (+ .cse9 (* (- 1) .cse10)) 256) 256) .cse10))))) (.cse0 (select .cse1 (+ |~#WrapperStruct00~0.offset| 6)))) (or (and (<= .cse0 (* (div .cse0 256) 256)) (not (= (select .cse1 (+ |~#WrapperStruct00~0.offset| 2)) (select .cse1 (+ |~#WrapperStruct00~0.offset| 25)))) .cse2) (let ((.cse6 (select .cse1 (+ |~#WrapperStruct00~0.offset| 26)))) (let ((.cse8 (+ .cse6 240))) (let ((.cse4 (+ 112 .cse6)) (.cse7 (select .cse1 (+ 23 |~#WrapperStruct00~0.offset|))) (.cse5 (* 256 (div .cse8 256))) (.cse3 (select .cse1 |~#WrapperStruct00~0.offset|))) (and (<= .cse3 (* (div .cse3 256) 256)) (or (< .cse4 .cse5) (= .cse6 (+ .cse7 16 .cse5))) (or (< .cse6 (+ (* (div .cse4 256) 256) 16)) (= (+ .cse7 .cse5) .cse8)) .cse2 (= .cse0 .cse3)))))))) [2023-12-19 15:52:50,379 INFO L899 garLoopResultBuilder]: For program point L91-1(line 91) no Hoare annotation was computed. [2023-12-19 15:52:50,379 INFO L895 garLoopResultBuilder]: At program point L108(line 108) the Hoare annotation is: (let ((.cse1 (select |#memory_int#1| |~#WrapperStruct00~0.base|))) (and (let ((.cse0 (select .cse1 (+ |~#WrapperStruct00~0.offset| 6)))) (<= .cse0 (* (div .cse0 256) 256))) (let ((.cse2 (select .cse1 (+ |~#WrapperStruct00~0.offset| 28)))) (<= .cse2 (let ((.cse3 (select .cse1 (+ |~#WrapperStruct00~0.offset| 27)))) (+ (* (div (+ .cse2 (* (- 1) .cse3)) 256) 256) .cse3)))))) [2023-12-19 15:52:50,379 INFO L899 garLoopResultBuilder]: For program point L108-1(line 108) no Hoare annotation was computed. [2023-12-19 15:52:50,379 INFO L899 garLoopResultBuilder]: For program point L75(line 75) no Hoare annotation was computed. [2023-12-19 15:52:50,379 INFO L899 garLoopResultBuilder]: For program point L75-2(line 75) no Hoare annotation was computed. [2023-12-19 15:52:50,379 INFO L895 garLoopResultBuilder]: At program point L93(line 93) the Hoare annotation is: (let ((.cse1 (select |#memory_int#1| |~#WrapperStruct00~0.base|))) (and (let ((.cse0 (select .cse1 (+ |~#WrapperStruct00~0.offset| 6)))) (<= .cse0 (* (div .cse0 256) 256))) (let ((.cse2 (select .cse1 (+ |~#WrapperStruct00~0.offset| 28)))) (<= .cse2 (let ((.cse3 (select .cse1 (+ |~#WrapperStruct00~0.offset| 27)))) (+ (* (div (+ .cse2 (* (- 1) .cse3)) 256) 256) .cse3)))))) [2023-12-19 15:52:50,379 INFO L899 garLoopResultBuilder]: For program point L93-1(line 93) no Hoare annotation was computed. [2023-12-19 15:52:50,379 INFO L895 garLoopResultBuilder]: At program point L110(line 110) the Hoare annotation is: (let ((.cse1 (select |#memory_int#1| |~#WrapperStruct00~0.base|))) (and (let ((.cse0 (select .cse1 (+ |~#WrapperStruct00~0.offset| 6)))) (<= .cse0 (* (div .cse0 256) 256))) (= |ULTIMATE.start_updateVariables_#t~mem59#1| (select .cse1 (+ |~#WrapperStruct00~0.offset| 28))))) [2023-12-19 15:52:50,379 INFO L899 garLoopResultBuilder]: For program point L110-1(line 110) no Hoare annotation was computed. [2023-12-19 15:52:50,379 INFO L895 garLoopResultBuilder]: At program point L94(line 94) the Hoare annotation is: (let ((.cse1 (select |#memory_int#1| |~#WrapperStruct00~0.base|))) (and (let ((.cse0 (select .cse1 (+ |~#WrapperStruct00~0.offset| 6)))) (<= .cse0 (* (div .cse0 256) 256))) (let ((.cse2 (select .cse1 (+ |~#WrapperStruct00~0.offset| 28)))) (<= .cse2 (let ((.cse3 (select .cse1 (+ |~#WrapperStruct00~0.offset| 27)))) (+ (* (div (+ .cse2 (* (- 1) .cse3)) 256) 256) .cse3)))))) [2023-12-19 15:52:50,379 INFO L899 garLoopResultBuilder]: For program point L94-1(line 94) no Hoare annotation was computed. [2023-12-19 15:52:50,379 INFO L899 garLoopResultBuilder]: For program point L61(lines 61 71) no Hoare annotation was computed. [2023-12-19 15:52:50,379 INFO L895 garLoopResultBuilder]: At program point L111(line 111) the Hoare annotation is: (let ((.cse1 (select |#memory_int#1| |~#WrapperStruct00~0.base|))) (and (let ((.cse0 (select .cse1 (+ |~#WrapperStruct00~0.offset| 6)))) (<= .cse0 (* (div .cse0 256) 256))) (= |ULTIMATE.start_updateVariables_#t~mem60#1| (select .cse1 (+ |~#WrapperStruct00~0.offset| 28))))) [2023-12-19 15:52:50,379 INFO L899 garLoopResultBuilder]: For program point L111-1(line 111) no Hoare annotation was computed. [2023-12-19 15:52:50,380 INFO L899 garLoopResultBuilder]: For program point L78(lines 78 86) no Hoare annotation was computed. [2023-12-19 15:52:50,380 INFO L899 garLoopResultBuilder]: For program point L62(line 62) no Hoare annotation was computed. [2023-12-19 15:52:50,380 INFO L899 garLoopResultBuilder]: For program point L62-2(line 62) no Hoare annotation was computed. [2023-12-19 15:52:50,380 INFO L899 garLoopResultBuilder]: For program point L79(line 79) no Hoare annotation was computed. [2023-12-19 15:52:50,380 INFO L899 garLoopResultBuilder]: For program point L79-2(lines 79 83) no Hoare annotation was computed. [2023-12-19 15:52:50,383 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-19 15:52:50,383 INFO L895 garLoopResultBuilder]: At program point L96(line 96) the Hoare annotation is: (let ((.cse2 (select |#memory_int#1| |~#WrapperStruct00~0.base|))) (let ((.cse0 (select .cse2 (+ |~#WrapperStruct00~0.offset| 28)))) (< .cse0 (let ((.cse1 (select .cse2 (+ |~#WrapperStruct00~0.offset| 27)))) (+ (* (div (+ .cse0 (* (- 1) .cse1)) 256) 256) .cse1 1))))) [2023-12-19 15:52:50,384 INFO L899 garLoopResultBuilder]: For program point L96-1(line 96) no Hoare annotation was computed. [2023-12-19 15:52:50,384 INFO L899 garLoopResultBuilder]: For program point L80(line 80) no Hoare annotation was computed. [2023-12-19 15:52:50,384 INFO L899 garLoopResultBuilder]: For program point L80-2(line 80) no Hoare annotation was computed. [2023-12-19 15:52:50,384 INFO L895 garLoopResultBuilder]: At program point L97(line 97) the Hoare annotation is: (let ((.cse0 (select |#memory_int#1| |~#WrapperStruct00~0.base|))) (and (= |ULTIMATE.start_updateVariables_#t~mem40#1| (select .cse0 (+ |~#WrapperStruct00~0.offset| 6))) (let ((.cse1 (select .cse0 (+ |~#WrapperStruct00~0.offset| 28)))) (<= .cse1 (let ((.cse2 (select .cse0 (+ |~#WrapperStruct00~0.offset| 27)))) (+ (* (div (+ .cse1 (* (- 1) .cse2)) 256) 256) .cse2)))))) [2023-12-19 15:52:50,384 INFO L899 garLoopResultBuilder]: For program point L97-1(line 97) no Hoare annotation was computed. [2023-12-19 15:52:50,384 INFO L899 garLoopResultBuilder]: For program point L64(lines 64 70) no Hoare annotation was computed. [2023-12-19 15:52:50,384 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2023-12-19 15:52:50,384 INFO L899 garLoopResultBuilder]: For program point L99(line 99) no Hoare annotation was computed. [2023-12-19 15:52:50,384 INFO L899 garLoopResultBuilder]: For program point L99-2(line 99) no Hoare annotation was computed. [2023-12-19 15:52:50,384 INFO L899 garLoopResultBuilder]: For program point L99-3(line 99) no Hoare annotation was computed. [2023-12-19 15:52:50,384 INFO L899 garLoopResultBuilder]: For program point L99-5(line 99) no Hoare annotation was computed. [2023-12-19 15:52:50,384 INFO L899 garLoopResultBuilder]: For program point L99-7(line 99) no Hoare annotation was computed. [2023-12-19 15:52:50,384 INFO L895 garLoopResultBuilder]: At program point L99-8(line 99) the Hoare annotation is: (let ((.cse1 (select |#memory_int#1| |~#WrapperStruct00~0.base|))) (and (let ((.cse0 (select .cse1 (+ |~#WrapperStruct00~0.offset| 6)))) (<= .cse0 (* (div .cse0 256) 256))) (let ((.cse2 (select .cse1 (+ |~#WrapperStruct00~0.offset| 28)))) (<= .cse2 (let ((.cse3 (select .cse1 (+ |~#WrapperStruct00~0.offset| 27)))) (+ (* (div (+ .cse2 (* (- 1) .cse3)) 256) 256) .cse3)))))) [2023-12-19 15:52:50,384 INFO L899 garLoopResultBuilder]: For program point L99-9(line 99) no Hoare annotation was computed. [2023-12-19 15:52:50,384 INFO L899 garLoopResultBuilder]: For program point L67(lines 67 69) no Hoare annotation was computed. [2023-12-19 15:52:50,384 INFO L899 garLoopResultBuilder]: For program point L67-2(lines 61 71) no Hoare annotation was computed. [2023-12-19 15:52:50,384 INFO L899 garLoopResultBuilder]: For program point L117(line 117) no Hoare annotation was computed. [2023-12-19 15:52:50,384 INFO L899 garLoopResultBuilder]: For program point L117-2(line 117) no Hoare annotation was computed. [2023-12-19 15:52:50,384 INFO L899 garLoopResultBuilder]: For program point L117-3(line 117) no Hoare annotation was computed. [2023-12-19 15:52:50,384 INFO L899 garLoopResultBuilder]: For program point L117-4(line 117) no Hoare annotation was computed. [2023-12-19 15:52:50,385 INFO L899 garLoopResultBuilder]: For program point L117-5(line 117) no Hoare annotation was computed. [2023-12-19 15:52:50,385 INFO L899 garLoopResultBuilder]: For program point L117-6(line 117) no Hoare annotation was computed. [2023-12-19 15:52:50,385 INFO L899 garLoopResultBuilder]: For program point L117-8(line 117) no Hoare annotation was computed. [2023-12-19 15:52:50,385 INFO L899 garLoopResultBuilder]: For program point L117-10(line 117) no Hoare annotation was computed. [2023-12-19 15:52:50,385 INFO L899 garLoopResultBuilder]: For program point L117-12(line 117) no Hoare annotation was computed. [2023-12-19 15:52:50,385 INFO L899 garLoopResultBuilder]: For program point L117-14(line 117) no Hoare annotation was computed. [2023-12-19 15:52:50,385 INFO L899 garLoopResultBuilder]: For program point L117-15(line 117) no Hoare annotation was computed. [2023-12-19 15:52:50,385 INFO L895 garLoopResultBuilder]: At program point L101(line 101) the Hoare annotation is: (let ((.cse1 (select |#memory_int#1| |~#WrapperStruct00~0.base|))) (and (let ((.cse0 (select .cse1 (+ |~#WrapperStruct00~0.offset| 6)))) (<= .cse0 (* (div .cse0 256) 256))) (let ((.cse2 (select .cse1 (+ |~#WrapperStruct00~0.offset| 28)))) (<= .cse2 (let ((.cse3 (select .cse1 (+ |~#WrapperStruct00~0.offset| 27)))) (+ (* (div (+ .cse2 (* (- 1) .cse3)) 256) 256) .cse3)))))) [2023-12-19 15:52:50,385 INFO L899 garLoopResultBuilder]: For program point L117-16(line 117) no Hoare annotation was computed. [2023-12-19 15:52:50,385 INFO L899 garLoopResultBuilder]: For program point L101-1(line 101) no Hoare annotation was computed. [2023-12-19 15:52:50,385 INFO L899 garLoopResultBuilder]: For program point L117-17(line 117) no Hoare annotation was computed. [2023-12-19 15:52:50,385 INFO L899 garLoopResultBuilder]: For program point L117-19(line 117) no Hoare annotation was computed. [2023-12-19 15:52:50,387 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:52:50,388 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-19 15:52:50,402 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset + 6] could not be translated [2023-12-19 15:52:50,403 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset + 6] could not be translated [2023-12-19 15:52:50,405 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset + 2] could not be translated [2023-12-19 15:52:50,405 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset + 25] could not be translated [2023-12-19 15:52:50,405 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset + 28] could not be translated [2023-12-19 15:52:50,405 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset + 28] could not be translated [2023-12-19 15:52:50,405 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset + 27] could not be translated [2023-12-19 15:52:50,405 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset + 27] could not be translated [2023-12-19 15:52:50,405 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset] could not be translated [2023-12-19 15:52:50,405 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset] could not be translated [2023-12-19 15:52:50,405 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset + 26] could not be translated [2023-12-19 15:52:50,405 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset + 26] could not be translated [2023-12-19 15:52:50,405 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset + 26] could not be translated [2023-12-19 15:52:50,405 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][23 + ~#WrapperStruct00~0!offset] could not be translated [2023-12-19 15:52:50,405 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset + 26] could not be translated [2023-12-19 15:52:50,406 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset + 26] could not be translated [2023-12-19 15:52:50,406 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset + 26] could not be translated [2023-12-19 15:52:50,406 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][23 + ~#WrapperStruct00~0!offset] could not be translated [2023-12-19 15:52:50,406 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset + 26] could not be translated [2023-12-19 15:52:50,406 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset + 26] could not be translated [2023-12-19 15:52:50,406 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset + 28] could not be translated [2023-12-19 15:52:50,406 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset + 28] could not be translated [2023-12-19 15:52:50,406 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset + 27] could not be translated [2023-12-19 15:52:50,406 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset + 27] could not be translated [2023-12-19 15:52:50,406 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset + 6] could not be translated [2023-12-19 15:52:50,406 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset] could not be translated [2023-12-19 15:52:50,407 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 03:52:50 BoogieIcfgContainer [2023-12-19 15:52:50,407 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-19 15:52:50,407 INFO L158 Benchmark]: Toolchain (without parser) took 14805.82ms. Allocated memory was 382.7MB in the beginning and 833.6MB in the end (delta: 450.9MB). Free memory was 343.8MB in the beginning and 450.8MB in the end (delta: -107.0MB). Peak memory consumption was 410.9MB. Max. memory is 8.0GB. [2023-12-19 15:52:50,407 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 196.1MB. Free memory is still 144.5MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-19 15:52:50,410 INFO L158 Benchmark]: CACSL2BoogieTranslator took 260.69ms. Allocated memory is still 382.7MB. Free memory was 343.3MB in the beginning and 328.1MB in the end (delta: 15.2MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2023-12-19 15:52:50,410 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.54ms. Allocated memory is still 382.7MB. Free memory was 328.1MB in the beginning and 324.4MB in the end (delta: 3.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-19 15:52:50,411 INFO L158 Benchmark]: Boogie Preprocessor took 104.27ms. Allocated memory is still 382.7MB. Free memory was 324.4MB in the beginning and 320.7MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-19 15:52:50,412 INFO L158 Benchmark]: RCFGBuilder took 510.14ms. Allocated memory is still 382.7MB. Free memory was 320.2MB in the beginning and 292.4MB in the end (delta: 27.8MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. [2023-12-19 15:52:50,413 INFO L158 Benchmark]: TraceAbstraction took 13868.14ms. Allocated memory was 382.7MB in the beginning and 833.6MB in the end (delta: 450.9MB). Free memory was 291.9MB in the beginning and 450.8MB in the end (delta: -158.9MB). Peak memory consumption was 359.6MB. Max. memory is 8.0GB. [2023-12-19 15:52:50,414 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 196.1MB. Free memory is still 144.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 260.69ms. Allocated memory is still 382.7MB. Free memory was 343.3MB in the beginning and 328.1MB in the end (delta: 15.2MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 57.54ms. Allocated memory is still 382.7MB. Free memory was 328.1MB in the beginning and 324.4MB in the end (delta: 3.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 104.27ms. Allocated memory is still 382.7MB. Free memory was 324.4MB in the beginning and 320.7MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 510.14ms. Allocated memory is still 382.7MB. Free memory was 320.2MB in the beginning and 292.4MB in the end (delta: 27.8MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. * TraceAbstraction took 13868.14ms. Allocated memory was 382.7MB in the beginning and 833.6MB in the end (delta: 450.9MB). Free memory was 291.9MB in the beginning and 450.8MB in the end (delta: -158.9MB). Peak memory consumption was 359.6MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset + 6] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset + 6] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset + 2] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset + 25] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset + 28] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset + 28] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset + 27] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset + 27] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset + 26] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset + 26] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset + 26] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][23 + ~#WrapperStruct00~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset + 26] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset + 26] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset + 26] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][23 + ~#WrapperStruct00~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset + 26] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset + 26] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset + 28] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset + 28] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset + 27] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset + 27] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset + 6] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset] could not be translated * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 95 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 13.8s, OverallIterations: 21, TraceHistogramMax: 15, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2296 SdHoareTripleChecker+Valid, 3.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2279 mSDsluCounter, 9109 SdHoareTripleChecker+Invalid, 2.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6534 mSDsCounter, 348 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4826 IncrementalHoareTripleChecker+Invalid, 5174 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 348 mSolverCounterUnsat, 2575 mSDtfsCounter, 4826 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1155 GetRequests, 1001 SyntacticMatches, 11 SemanticMatches, 143 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=521occurred in iteration=18, InterpolantAutomatonStates: 160, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 21 MinimizatonAttempts, 700 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 17 LocationsWithAnnotation, 632 PreInvPairs, 684 NumberOfFragments, 1404 HoareAnnotationTreeSize, 632 FormulaSimplifications, 224400 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 17 FormulaSimplificationsInter, 58405 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 6.8s InterpolantComputationTime, 2677 NumberOfCodeBlocks, 2677 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 2781 ConstructedInterpolants, 0 QuantifiedInterpolants, 9915 SizeOfPredicates, 7 NumberOfNonLiveVariables, 414 ConjunctsInSsa, 30 ConjunctsInUnsatCore, 23 InterpolantComputations, 20 PerfectInterpolantSequences, 9579/9660 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 123]: Loop Invariant Derived loop invariant: null RESULT: Ultimate proved your program to be correct! [2023-12-19 15:52:50,432 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...