/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n3_w16_d16_e0.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 18:52:32,689 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 18:52:32,758 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2023-12-16 18:52:32,763 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 18:52:32,763 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 18:52:32,785 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 18:52:32,786 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 18:52:32,786 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 18:52:32,787 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 18:52:32,790 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 18:52:32,790 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 18:52:32,790 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 18:52:32,791 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 18:52:32,792 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 18:52:32,792 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 18:52:32,792 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 18:52:32,792 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 18:52:32,793 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-16 18:52:32,793 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 18:52:32,793 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 18:52:32,793 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 18:52:32,793 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 18:52:32,794 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 18:52:32,794 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 18:52:32,794 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 18:52:32,794 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 18:52:32,795 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 18:52:32,795 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 18:52:32,795 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 18:52:32,795 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 18:52:32,796 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 18:52:32,796 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 18:52:32,796 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 18:52:32,796 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-16 18:52:32,796 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-16 18:52:32,797 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 18:52:32,797 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 18:52:32,797 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 18:52:32,797 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 18:52:32,797 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 18:52:32,797 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-16 18:52:32,991 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 18:52:33,005 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 18:52:33,007 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 18:52:33,008 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 18:52:33,008 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 18:52:33,009 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n3_w16_d16_e0.c [2023-12-16 18:52:34,130 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 18:52:34,389 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 18:52:34,389 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n3_w16_d16_e0.c [2023-12-16 18:52:34,404 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c3de1bbeb/2da2242a47a44b5c8eea6cf6c155aae1/FLAG0a6da2fac [2023-12-16 18:52:34,413 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c3de1bbeb/2da2242a47a44b5c8eea6cf6c155aae1 [2023-12-16 18:52:34,415 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 18:52:34,416 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 18:52:34,417 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 18:52:34,417 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 18:52:34,421 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 18:52:34,422 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 06:52:34" (1/1) ... [2023-12-16 18:52:34,422 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3259cd0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:52:34, skipping insertion in model container [2023-12-16 18:52:34,422 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 06:52:34" (1/1) ... [2023-12-16 18:52:34,499 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 18:52:34,655 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n3_w16_d16_e0.c[1271,1284] [2023-12-16 18:52:35,038 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 18:52:35,045 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 18:52:35,052 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n3_w16_d16_e0.c[1271,1284] [2023-12-16 18:52:35,139 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 18:52:35,150 INFO L206 MainTranslator]: Completed translation [2023-12-16 18:52:35,150 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:52:35 WrapperNode [2023-12-16 18:52:35,150 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 18:52:35,151 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 18:52:35,151 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 18:52:35,152 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 18:52:35,156 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:52:35" (1/1) ... [2023-12-16 18:52:35,214 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:52:35" (1/1) ... [2023-12-16 18:52:35,765 INFO L138 Inliner]: procedures = 17, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 6520 [2023-12-16 18:52:35,766 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 18:52:35,766 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 18:52:35,766 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 18:52:35,766 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 18:52:35,774 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:52:35" (1/1) ... [2023-12-16 18:52:35,774 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:52:35" (1/1) ... [2023-12-16 18:52:35,900 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:52:35" (1/1) ... [2023-12-16 18:52:36,137 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-16 18:52:36,138 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:52:35" (1/1) ... [2023-12-16 18:52:36,138 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:52:35" (1/1) ... [2023-12-16 18:52:36,303 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:52:35" (1/1) ... [2023-12-16 18:52:36,338 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:52:35" (1/1) ... [2023-12-16 18:52:36,368 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:52:35" (1/1) ... [2023-12-16 18:52:36,404 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:52:35" (1/1) ... [2023-12-16 18:52:36,504 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 18:52:36,505 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 18:52:36,505 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 18:52:36,506 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 18:52:36,507 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:52:35" (1/1) ... [2023-12-16 18:52:36,511 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 18:52:36,518 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 18:52:36,612 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) [2023-12-16 18:52:36,614 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 [2023-12-16 18:52:36,637 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 18:52:36,637 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 18:52:36,637 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 18:52:36,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-16 18:52:36,637 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 18:52:36,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 18:52:37,083 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 18:52:37,085 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 18:52:39,876 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 18:52:39,953 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 18:52:39,953 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 18:52:39,953 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 06:52:39 BoogieIcfgContainer [2023-12-16 18:52:39,953 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 18:52:39,955 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 18:52:39,955 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 18:52:39,957 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 18:52:39,957 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 06:52:34" (1/3) ... [2023-12-16 18:52:39,958 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b30c154 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 06:52:39, skipping insertion in model container [2023-12-16 18:52:39,958 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:52:35" (2/3) ... [2023-12-16 18:52:39,958 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b30c154 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 06:52:39, skipping insertion in model container [2023-12-16 18:52:39,958 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 06:52:39" (3/3) ... [2023-12-16 18:52:39,959 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.arbitrated_top_n3_w16_d16_e0.c [2023-12-16 18:52:39,971 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 18:52:39,971 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 18:52:40,013 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 18:52:40,017 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;@7e30da02, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 18:52:40,017 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 18:52:40,023 INFO L276 IsEmpty]: Start isEmpty. Operand has 1262 states, 1249 states have (on average 1.6605284227381905) internal successors, (2074), 1250 states have internal predecessors, (2074), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-12-16 18:52:40,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 541 [2023-12-16 18:52:40,044 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:52:40,045 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:52:40,045 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:52:40,049 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:52:40,049 INFO L85 PathProgramCache]: Analyzing trace with hash 850259429, now seen corresponding path program 1 times [2023-12-16 18:52:40,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 18:52:40,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141960021] [2023-12-16 18:52:40,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:52:40,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 18:52:40,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:40,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-12-16 18:52:40,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:40,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-16 18:52:40,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:40,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-12-16 18:52:40,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:40,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2023-12-16 18:52:40,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:40,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2023-12-16 18:52:40,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:40,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2023-12-16 18:52:40,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:40,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2023-12-16 18:52:40,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:40,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2023-12-16 18:52:40,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:40,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2023-12-16 18:52:40,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:40,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2023-12-16 18:52:40,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:40,571 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-12-16 18:52:40,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 18:52:40,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141960021] [2023-12-16 18:52:40,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141960021] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:52:40,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:52:40,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 18:52:40,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279676100] [2023-12-16 18:52:40,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:52:40,577 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 18:52:40,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 18:52:40,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 18:52:40,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 18:52:40,600 INFO L87 Difference]: Start difference. First operand has 1262 states, 1249 states have (on average 1.6605284227381905) internal successors, (2074), 1250 states have internal predecessors, (2074), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 246.5) internal successors, (493), 2 states have internal predecessors, (493), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-16 18:52:40,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:52:40,660 INFO L93 Difference]: Finished difference Result 2326 states and 3871 transitions. [2023-12-16 18:52:40,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 18:52:40,663 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 246.5) internal successors, (493), 2 states have internal predecessors, (493), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) Word has length 540 [2023-12-16 18:52:40,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:52:40,678 INFO L225 Difference]: With dead ends: 2326 [2023-12-16 18:52:40,678 INFO L226 Difference]: Without dead ends: 1260 [2023-12-16 18:52:40,683 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 18:52:40,685 INFO L413 NwaCegarLoop]: 2088 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2088 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 18:52:40,686 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2088 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 18:52:40,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1260 states. [2023-12-16 18:52:40,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1260 to 1260. [2023-12-16 18:52:40,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1260 states, 1248 states have (on average 1.657852564102564) internal successors, (2069), 1248 states have internal predecessors, (2069), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-12-16 18:52:40,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1260 states to 1260 states and 2089 transitions. [2023-12-16 18:52:40,745 INFO L78 Accepts]: Start accepts. Automaton has 1260 states and 2089 transitions. Word has length 540 [2023-12-16 18:52:40,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:52:40,746 INFO L495 AbstractCegarLoop]: Abstraction has 1260 states and 2089 transitions. [2023-12-16 18:52:40,746 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 246.5) internal successors, (493), 2 states have internal predecessors, (493), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-16 18:52:40,747 INFO L276 IsEmpty]: Start isEmpty. Operand 1260 states and 2089 transitions. [2023-12-16 18:52:40,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 541 [2023-12-16 18:52:40,754 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:52:40,754 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:52:40,754 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-16 18:52:40,754 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:52:40,755 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:52:40,755 INFO L85 PathProgramCache]: Analyzing trace with hash 744857169, now seen corresponding path program 1 times [2023-12-16 18:52:40,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 18:52:40,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501070362] [2023-12-16 18:52:40,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:52:40,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 18:52:41,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:42,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-12-16 18:52:42,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:42,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-16 18:52:42,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:42,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-12-16 18:52:42,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:42,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2023-12-16 18:52:42,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:42,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2023-12-16 18:52:42,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:42,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2023-12-16 18:52:42,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:42,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2023-12-16 18:52:42,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:42,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2023-12-16 18:52:42,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:42,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2023-12-16 18:52:42,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:42,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2023-12-16 18:52:42,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:42,644 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-12-16 18:52:42,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 18:52:42,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501070362] [2023-12-16 18:52:42,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501070362] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:52:42,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:52:42,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 18:52:42,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546042644] [2023-12-16 18:52:42,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:52:42,648 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 18:52:42,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 18:52:42,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 18:52:42,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 18:52:42,652 INFO L87 Difference]: Start difference. First operand 1260 states and 2089 transitions. Second operand has 4 states, 4 states have (on average 123.25) internal successors, (493), 4 states have internal predecessors, (493), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-12-16 18:52:42,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:52:42,708 INFO L93 Difference]: Finished difference Result 1264 states and 2093 transitions. [2023-12-16 18:52:42,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 18:52:42,708 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 123.25) internal successors, (493), 4 states have internal predecessors, (493), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 540 [2023-12-16 18:52:42,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:52:42,718 INFO L225 Difference]: With dead ends: 1264 [2023-12-16 18:52:42,718 INFO L226 Difference]: Without dead ends: 1262 [2023-12-16 18:52:42,718 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 18:52:42,719 INFO L413 NwaCegarLoop]: 2086 mSDtfsCounter, 1 mSDsluCounter, 4167 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 6253 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 18:52:42,720 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 6253 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 18:52:42,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1262 states. [2023-12-16 18:52:42,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1262 to 1262. [2023-12-16 18:52:42,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1262 states, 1250 states have (on average 1.6568) internal successors, (2071), 1250 states have internal predecessors, (2071), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-12-16 18:52:42,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1262 states to 1262 states and 2091 transitions. [2023-12-16 18:52:42,747 INFO L78 Accepts]: Start accepts. Automaton has 1262 states and 2091 transitions. Word has length 540 [2023-12-16 18:52:42,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:52:42,750 INFO L495 AbstractCegarLoop]: Abstraction has 1262 states and 2091 transitions. [2023-12-16 18:52:42,750 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 123.25) internal successors, (493), 4 states have internal predecessors, (493), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-12-16 18:52:42,750 INFO L276 IsEmpty]: Start isEmpty. Operand 1262 states and 2091 transitions. [2023-12-16 18:52:42,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 542 [2023-12-16 18:52:42,758 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:52:42,761 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:52:42,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-16 18:52:42,764 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:52:42,764 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:52:42,765 INFO L85 PathProgramCache]: Analyzing trace with hash 1617463583, now seen corresponding path program 1 times [2023-12-16 18:52:42,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 18:52:42,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046035056] [2023-12-16 18:52:42,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:52:42,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 18:52:43,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:43,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-12-16 18:52:43,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:43,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-16 18:52:43,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:43,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-12-16 18:52:43,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:43,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2023-12-16 18:52:43,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:43,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2023-12-16 18:52:43,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:43,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2023-12-16 18:52:43,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:43,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2023-12-16 18:52:43,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:43,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2023-12-16 18:52:43,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:43,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2023-12-16 18:52:43,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:43,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2023-12-16 18:52:43,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:43,878 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-12-16 18:52:43,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 18:52:43,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046035056] [2023-12-16 18:52:43,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046035056] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:52:43,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:52:43,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 18:52:43,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487238799] [2023-12-16 18:52:43,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:52:43,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 18:52:43,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 18:52:43,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 18:52:43,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 18:52:43,882 INFO L87 Difference]: Start difference. First operand 1262 states and 2091 transitions. Second operand has 5 states, 5 states have (on average 98.8) internal successors, (494), 5 states have internal predecessors, (494), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-16 18:52:44,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:52:44,719 INFO L93 Difference]: Finished difference Result 3280 states and 5402 transitions. [2023-12-16 18:52:44,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 18:52:44,720 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 98.8) internal successors, (494), 5 states have internal predecessors, (494), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 541 [2023-12-16 18:52:44,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:52:44,725 INFO L225 Difference]: With dead ends: 3280 [2023-12-16 18:52:44,725 INFO L226 Difference]: Without dead ends: 1262 [2023-12-16 18:52:44,727 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-16 18:52:44,728 INFO L413 NwaCegarLoop]: 3322 mSDtfsCounter, 3059 mSDsluCounter, 4961 mSDsCounter, 0 mSdLazyCounter, 759 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3065 SdHoareTripleChecker+Valid, 8283 SdHoareTripleChecker+Invalid, 871 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 759 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-16 18:52:44,728 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3065 Valid, 8283 Invalid, 871 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 759 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-16 18:52:44,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1262 states. [2023-12-16 18:52:44,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1262 to 1262. [2023-12-16 18:52:44,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1262 states, 1250 states have (on average 1.656) internal successors, (2070), 1250 states have internal predecessors, (2070), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-12-16 18:52:44,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1262 states to 1262 states and 2090 transitions. [2023-12-16 18:52:44,752 INFO L78 Accepts]: Start accepts. Automaton has 1262 states and 2090 transitions. Word has length 541 [2023-12-16 18:52:44,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:52:44,753 INFO L495 AbstractCegarLoop]: Abstraction has 1262 states and 2090 transitions. [2023-12-16 18:52:44,753 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 98.8) internal successors, (494), 5 states have internal predecessors, (494), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-16 18:52:44,753 INFO L276 IsEmpty]: Start isEmpty. Operand 1262 states and 2090 transitions. [2023-12-16 18:52:44,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 543 [2023-12-16 18:52:44,760 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:52:44,761 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:52:44,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-16 18:52:44,761 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:52:44,763 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:52:44,763 INFO L85 PathProgramCache]: Analyzing trace with hash 253220225, now seen corresponding path program 1 times [2023-12-16 18:52:44,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 18:52:44,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097870281] [2023-12-16 18:52:44,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:52:44,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 18:52:44,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:45,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-12-16 18:52:45,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:45,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-16 18:52:45,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:45,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-12-16 18:52:45,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:45,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2023-12-16 18:52:45,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:45,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-12-16 18:52:45,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:45,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2023-12-16 18:52:45,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:45,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2023-12-16 18:52:45,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:45,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2023-12-16 18:52:45,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:45,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2023-12-16 18:52:45,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:45,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2023-12-16 18:52:45,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:45,682 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-12-16 18:52:45,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 18:52:45,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097870281] [2023-12-16 18:52:45,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097870281] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:52:45,683 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:52:45,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 18:52:45,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111369480] [2023-12-16 18:52:45,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:52:45,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 18:52:45,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 18:52:45,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 18:52:45,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-16 18:52:45,684 INFO L87 Difference]: Start difference. First operand 1262 states and 2090 transitions. Second operand has 5 states, 5 states have (on average 99.0) internal successors, (495), 5 states have internal predecessors, (495), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-16 18:52:46,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:52:46,538 INFO L93 Difference]: Finished difference Result 2328 states and 3854 transitions. [2023-12-16 18:52:46,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 18:52:46,539 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 99.0) internal successors, (495), 5 states have internal predecessors, (495), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 542 [2023-12-16 18:52:46,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:52:46,543 INFO L225 Difference]: With dead ends: 2328 [2023-12-16 18:52:46,543 INFO L226 Difference]: Without dead ends: 1262 [2023-12-16 18:52:46,545 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-16 18:52:46,546 INFO L413 NwaCegarLoop]: 1632 mSDtfsCounter, 3818 mSDsluCounter, 1634 mSDsCounter, 0 mSdLazyCounter, 917 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3822 SdHoareTripleChecker+Valid, 3266 SdHoareTripleChecker+Invalid, 918 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 917 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-16 18:52:46,546 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3822 Valid, 3266 Invalid, 918 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 917 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-16 18:52:46,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1262 states. [2023-12-16 18:52:46,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1262 to 1262. [2023-12-16 18:52:46,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1262 states, 1250 states have (on average 1.6552) internal successors, (2069), 1250 states have internal predecessors, (2069), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-12-16 18:52:46,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1262 states to 1262 states and 2089 transitions. [2023-12-16 18:52:46,569 INFO L78 Accepts]: Start accepts. Automaton has 1262 states and 2089 transitions. Word has length 542 [2023-12-16 18:52:46,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:52:46,570 INFO L495 AbstractCegarLoop]: Abstraction has 1262 states and 2089 transitions. [2023-12-16 18:52:46,570 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 99.0) internal successors, (495), 5 states have internal predecessors, (495), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-16 18:52:46,570 INFO L276 IsEmpty]: Start isEmpty. Operand 1262 states and 2089 transitions. [2023-12-16 18:52:46,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 544 [2023-12-16 18:52:46,578 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:52:46,579 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:52:46,580 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-16 18:52:46,580 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:52:46,580 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:52:46,580 INFO L85 PathProgramCache]: Analyzing trace with hash 2001250873, now seen corresponding path program 1 times [2023-12-16 18:52:46,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 18:52:46,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125255212] [2023-12-16 18:52:46,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:52:46,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 18:52:46,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:47,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-12-16 18:52:47,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:47,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-16 18:52:47,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:47,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-12-16 18:52:47,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:47,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2023-12-16 18:52:47,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:47,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-12-16 18:52:47,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:47,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2023-12-16 18:52:47,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:47,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2023-12-16 18:52:47,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:47,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2023-12-16 18:52:47,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:47,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2023-12-16 18:52:47,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:47,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2023-12-16 18:52:47,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:47,414 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-12-16 18:52:47,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 18:52:47,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125255212] [2023-12-16 18:52:47,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125255212] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:52:47,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:52:47,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 18:52:47,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172854274] [2023-12-16 18:52:47,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:52:47,416 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 18:52:47,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 18:52:47,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 18:52:47,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-16 18:52:47,417 INFO L87 Difference]: Start difference. First operand 1262 states and 2089 transitions. Second operand has 5 states, 5 states have (on average 99.2) internal successors, (496), 5 states have internal predecessors, (496), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-16 18:52:48,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:52:48,145 INFO L93 Difference]: Finished difference Result 2328 states and 3852 transitions. [2023-12-16 18:52:48,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 18:52:48,148 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 99.2) internal successors, (496), 5 states have internal predecessors, (496), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 543 [2023-12-16 18:52:48,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:52:48,152 INFO L225 Difference]: With dead ends: 2328 [2023-12-16 18:52:48,152 INFO L226 Difference]: Without dead ends: 1262 [2023-12-16 18:52:48,155 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-16 18:52:48,156 INFO L413 NwaCegarLoop]: 1632 mSDtfsCounter, 1918 mSDsluCounter, 1647 mSDsCounter, 0 mSdLazyCounter, 915 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1922 SdHoareTripleChecker+Valid, 3279 SdHoareTripleChecker+Invalid, 916 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 915 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-16 18:52:48,157 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1922 Valid, 3279 Invalid, 916 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 915 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-16 18:52:48,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1262 states. [2023-12-16 18:52:48,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1262 to 1262. [2023-12-16 18:52:48,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1262 states, 1250 states have (on average 1.6544) internal successors, (2068), 1250 states have internal predecessors, (2068), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-12-16 18:52:48,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1262 states to 1262 states and 2088 transitions. [2023-12-16 18:52:48,195 INFO L78 Accepts]: Start accepts. Automaton has 1262 states and 2088 transitions. Word has length 543 [2023-12-16 18:52:48,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:52:48,196 INFO L495 AbstractCegarLoop]: Abstraction has 1262 states and 2088 transitions. [2023-12-16 18:52:48,196 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 99.2) internal successors, (496), 5 states have internal predecessors, (496), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-16 18:52:48,196 INFO L276 IsEmpty]: Start isEmpty. Operand 1262 states and 2088 transitions. [2023-12-16 18:52:48,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 545 [2023-12-16 18:52:48,201 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:52:48,201 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:52:48,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-16 18:52:48,202 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:52:48,202 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:52:48,202 INFO L85 PathProgramCache]: Analyzing trace with hash -488173557, now seen corresponding path program 1 times [2023-12-16 18:52:48,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 18:52:48,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481208436] [2023-12-16 18:52:48,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:52:48,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 18:52:48,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:49,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-12-16 18:52:49,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:49,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-16 18:52:49,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:49,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-12-16 18:52:49,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:49,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2023-12-16 18:52:49,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:49,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-12-16 18:52:49,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:49,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2023-12-16 18:52:49,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:49,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2023-12-16 18:52:49,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:49,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2023-12-16 18:52:49,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:49,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2023-12-16 18:52:49,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:49,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2023-12-16 18:52:49,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:49,234 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-12-16 18:52:49,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 18:52:49,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481208436] [2023-12-16 18:52:49,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [481208436] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:52:49,235 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:52:49,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 18:52:49,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375734201] [2023-12-16 18:52:49,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:52:49,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 18:52:49,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 18:52:49,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 18:52:49,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-16 18:52:49,238 INFO L87 Difference]: Start difference. First operand 1262 states and 2088 transitions. Second operand has 5 states, 5 states have (on average 99.4) internal successors, (497), 5 states have internal predecessors, (497), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-16 18:52:49,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:52:49,918 INFO L93 Difference]: Finished difference Result 2328 states and 3850 transitions. [2023-12-16 18:52:49,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 18:52:49,919 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 99.4) internal successors, (497), 5 states have internal predecessors, (497), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 544 [2023-12-16 18:52:49,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:52:49,923 INFO L225 Difference]: With dead ends: 2328 [2023-12-16 18:52:49,923 INFO L226 Difference]: Without dead ends: 1262 [2023-12-16 18:52:49,925 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-16 18:52:49,925 INFO L413 NwaCegarLoop]: 1632 mSDtfsCounter, 1838 mSDsluCounter, 1647 mSDsCounter, 0 mSdLazyCounter, 913 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1842 SdHoareTripleChecker+Valid, 3279 SdHoareTripleChecker+Invalid, 914 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 913 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-16 18:52:49,925 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1842 Valid, 3279 Invalid, 914 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 913 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-16 18:52:49,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1262 states. [2023-12-16 18:52:49,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1262 to 1262. [2023-12-16 18:52:49,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1262 states, 1250 states have (on average 1.6536) internal successors, (2067), 1250 states have internal predecessors, (2067), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-12-16 18:52:49,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1262 states to 1262 states and 2087 transitions. [2023-12-16 18:52:49,945 INFO L78 Accepts]: Start accepts. Automaton has 1262 states and 2087 transitions. Word has length 544 [2023-12-16 18:52:49,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:52:49,946 INFO L495 AbstractCegarLoop]: Abstraction has 1262 states and 2087 transitions. [2023-12-16 18:52:49,946 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 99.4) internal successors, (497), 5 states have internal predecessors, (497), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-16 18:52:49,946 INFO L276 IsEmpty]: Start isEmpty. Operand 1262 states and 2087 transitions. [2023-12-16 18:52:49,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 546 [2023-12-16 18:52:49,953 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:52:49,953 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:52:49,954 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-16 18:52:49,954 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:52:49,954 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:52:49,954 INFO L85 PathProgramCache]: Analyzing trace with hash -1117191419, now seen corresponding path program 1 times [2023-12-16 18:52:49,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 18:52:49,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333332921] [2023-12-16 18:52:49,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:52:49,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 18:52:50,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:50,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-12-16 18:52:50,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:50,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-16 18:52:50,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:50,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-12-16 18:52:50,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:50,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2023-12-16 18:52:50,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:50,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-12-16 18:52:50,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:50,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2023-12-16 18:52:50,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:50,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2023-12-16 18:52:50,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:50,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2023-12-16 18:52:50,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:50,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2023-12-16 18:52:50,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:50,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2023-12-16 18:52:50,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:50,918 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-12-16 18:52:50,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 18:52:50,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333332921] [2023-12-16 18:52:50,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333332921] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:52:50,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:52:50,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 18:52:50,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752279307] [2023-12-16 18:52:50,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:52:50,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 18:52:50,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 18:52:50,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 18:52:50,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 18:52:50,922 INFO L87 Difference]: Start difference. First operand 1262 states and 2087 transitions. Second operand has 4 states, 4 states have (on average 124.5) internal successors, (498), 4 states have internal predecessors, (498), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-12-16 18:52:50,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:52:50,968 INFO L93 Difference]: Finished difference Result 2331 states and 3852 transitions. [2023-12-16 18:52:50,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 18:52:50,969 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 124.5) internal successors, (498), 4 states have internal predecessors, (498), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 545 [2023-12-16 18:52:50,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:52:50,973 INFO L225 Difference]: With dead ends: 2331 [2023-12-16 18:52:50,973 INFO L226 Difference]: Without dead ends: 1265 [2023-12-16 18:52:50,975 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 18:52:50,977 INFO L413 NwaCegarLoop]: 2082 mSDtfsCounter, 1 mSDsluCounter, 4157 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 6239 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 18:52:50,977 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 6239 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 18:52:50,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1265 states. [2023-12-16 18:52:50,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1265 to 1264. [2023-12-16 18:52:50,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1264 states, 1252 states have (on average 1.652555910543131) internal successors, (2069), 1252 states have internal predecessors, (2069), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-12-16 18:52:50,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1264 states to 1264 states and 2089 transitions. [2023-12-16 18:52:50,996 INFO L78 Accepts]: Start accepts. Automaton has 1264 states and 2089 transitions. Word has length 545 [2023-12-16 18:52:50,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:52:50,997 INFO L495 AbstractCegarLoop]: Abstraction has 1264 states and 2089 transitions. [2023-12-16 18:52:50,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 124.5) internal successors, (498), 4 states have internal predecessors, (498), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-12-16 18:52:50,997 INFO L276 IsEmpty]: Start isEmpty. Operand 1264 states and 2089 transitions. [2023-12-16 18:52:51,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 547 [2023-12-16 18:52:51,000 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:52:51,001 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:52:51,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-16 18:52:51,001 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:52:51,002 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:52:51,002 INFO L85 PathProgramCache]: Analyzing trace with hash -483625211, now seen corresponding path program 1 times [2023-12-16 18:52:51,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 18:52:51,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140742072] [2023-12-16 18:52:51,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:52:51,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 18:52:51,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:52,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-12-16 18:52:52,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:52,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-16 18:52:52,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:52,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-12-16 18:52:52,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:52,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2023-12-16 18:52:52,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:52,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-12-16 18:52:52,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:52,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2023-12-16 18:52:52,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:52,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2023-12-16 18:52:52,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:52,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2023-12-16 18:52:52,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:52,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2023-12-16 18:52:52,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:52,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2023-12-16 18:52:52,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:52,073 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-12-16 18:52:52,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 18:52:52,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140742072] [2023-12-16 18:52:52,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140742072] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:52:52,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:52:52,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 18:52:52,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245544602] [2023-12-16 18:52:52,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:52:52,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 18:52:52,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 18:52:52,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 18:52:52,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 18:52:52,076 INFO L87 Difference]: Start difference. First operand 1264 states and 2089 transitions. Second operand has 4 states, 4 states have (on average 124.75) internal successors, (499), 4 states have internal predecessors, (499), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-12-16 18:52:52,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:52:52,216 INFO L93 Difference]: Finished difference Result 2332 states and 3852 transitions. [2023-12-16 18:52:52,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 18:52:52,217 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 124.75) internal successors, (499), 4 states have internal predecessors, (499), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 546 [2023-12-16 18:52:52,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:52:52,221 INFO L225 Difference]: With dead ends: 2332 [2023-12-16 18:52:52,221 INFO L226 Difference]: Without dead ends: 1264 [2023-12-16 18:52:52,222 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 18:52:52,223 INFO L413 NwaCegarLoop]: 2013 mSDtfsCounter, 1736 mSDsluCounter, 2015 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1736 SdHoareTripleChecker+Valid, 4028 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 18:52:52,223 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1736 Valid, 4028 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 18:52:52,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1264 states. [2023-12-16 18:52:52,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1264 to 1264. [2023-12-16 18:52:52,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1264 states, 1252 states have (on average 1.650958466453674) internal successors, (2067), 1252 states have internal predecessors, (2067), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-12-16 18:52:52,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1264 states to 1264 states and 2087 transitions. [2023-12-16 18:52:52,241 INFO L78 Accepts]: Start accepts. Automaton has 1264 states and 2087 transitions. Word has length 546 [2023-12-16 18:52:52,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:52:52,242 INFO L495 AbstractCegarLoop]: Abstraction has 1264 states and 2087 transitions. [2023-12-16 18:52:52,242 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 124.75) internal successors, (499), 4 states have internal predecessors, (499), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-12-16 18:52:52,242 INFO L276 IsEmpty]: Start isEmpty. Operand 1264 states and 2087 transitions. [2023-12-16 18:52:52,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 548 [2023-12-16 18:52:52,245 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:52:52,245 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:52:52,245 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-16 18:52:52,245 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:52:52,246 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:52:52,246 INFO L85 PathProgramCache]: Analyzing trace with hash -355924261, now seen corresponding path program 1 times [2023-12-16 18:52:52,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 18:52:52,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112854974] [2023-12-16 18:52:52,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:52:52,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 18:52:52,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:52,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-12-16 18:52:52,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:52,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-16 18:52:52,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:52,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-12-16 18:52:52,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:52,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2023-12-16 18:52:52,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:52,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-12-16 18:52:52,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:52,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2023-12-16 18:52:52,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:52,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2023-12-16 18:52:52,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:52,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2023-12-16 18:52:52,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:52,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2023-12-16 18:52:52,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:52,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2023-12-16 18:52:52,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:52,951 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-12-16 18:52:52,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 18:52:52,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112854974] [2023-12-16 18:52:52,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112854974] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:52:52,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:52:52,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 18:52:52,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367530080] [2023-12-16 18:52:52,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:52:52,952 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 18:52:52,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 18:52:52,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 18:52:52,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 18:52:52,954 INFO L87 Difference]: Start difference. First operand 1264 states and 2087 transitions. Second operand has 5 states, 5 states have (on average 100.0) internal successors, (500), 5 states have internal predecessors, (500), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-12-16 18:52:53,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:52:53,086 INFO L93 Difference]: Finished difference Result 2446 states and 4035 transitions. [2023-12-16 18:52:53,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 18:52:53,087 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 100.0) internal successors, (500), 5 states have internal predecessors, (500), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 547 [2023-12-16 18:52:53,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:52:53,092 INFO L225 Difference]: With dead ends: 2446 [2023-12-16 18:52:53,092 INFO L226 Difference]: Without dead ends: 1264 [2023-12-16 18:52:53,094 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-16 18:52:53,096 INFO L413 NwaCegarLoop]: 2069 mSDtfsCounter, 2107 mSDsluCounter, 4094 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2107 SdHoareTripleChecker+Valid, 6163 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 18:52:53,096 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2107 Valid, 6163 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 18:52:53,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1264 states. [2023-12-16 18:52:53,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1264 to 1264. [2023-12-16 18:52:53,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1264 states, 1252 states have (on average 1.6501597444089458) internal successors, (2066), 1252 states have internal predecessors, (2066), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-12-16 18:52:53,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1264 states to 1264 states and 2086 transitions. [2023-12-16 18:52:53,122 INFO L78 Accepts]: Start accepts. Automaton has 1264 states and 2086 transitions. Word has length 547 [2023-12-16 18:52:53,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:52:53,123 INFO L495 AbstractCegarLoop]: Abstraction has 1264 states and 2086 transitions. [2023-12-16 18:52:53,123 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 100.0) internal successors, (500), 5 states have internal predecessors, (500), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-12-16 18:52:53,123 INFO L276 IsEmpty]: Start isEmpty. Operand 1264 states and 2086 transitions. [2023-12-16 18:52:53,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 549 [2023-12-16 18:52:53,126 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:52:53,126 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:52:53,126 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-16 18:52:53,126 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:52:53,127 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:52:53,127 INFO L85 PathProgramCache]: Analyzing trace with hash 1144984073, now seen corresponding path program 1 times [2023-12-16 18:52:53,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 18:52:53,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198814984] [2023-12-16 18:52:53,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:52:53,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 18:52:53,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:53,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-12-16 18:52:53,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:53,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-16 18:52:53,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:53,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-12-16 18:52:53,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:53,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2023-12-16 18:52:53,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:53,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-12-16 18:52:53,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:53,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2023-12-16 18:52:53,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:53,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2023-12-16 18:52:53,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:53,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2023-12-16 18:52:53,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:53,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2023-12-16 18:52:53,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:53,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2023-12-16 18:52:53,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:53,889 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-12-16 18:52:53,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 18:52:53,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198814984] [2023-12-16 18:52:53,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198814984] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:52:53,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:52:53,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 18:52:53,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79992713] [2023-12-16 18:52:53,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:52:53,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 18:52:53,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 18:52:53,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 18:52:53,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-16 18:52:53,891 INFO L87 Difference]: Start difference. First operand 1264 states and 2086 transitions. Second operand has 5 states, 5 states have (on average 100.2) internal successors, (501), 5 states have internal predecessors, (501), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-12-16 18:52:54,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:52:54,042 INFO L93 Difference]: Finished difference Result 2332 states and 3846 transitions. [2023-12-16 18:52:54,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 18:52:54,043 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 100.2) internal successors, (501), 5 states have internal predecessors, (501), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 548 [2023-12-16 18:52:54,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:52:54,047 INFO L225 Difference]: With dead ends: 2332 [2023-12-16 18:52:54,047 INFO L226 Difference]: Without dead ends: 1264 [2023-12-16 18:52:54,048 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-16 18:52:54,049 INFO L413 NwaCegarLoop]: 2014 mSDtfsCounter, 3866 mSDsluCounter, 2016 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3876 SdHoareTripleChecker+Valid, 4030 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 18:52:54,050 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3876 Valid, 4030 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 18:52:54,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1264 states. [2023-12-16 18:52:54,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1264 to 1264. [2023-12-16 18:52:54,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1264 states, 1252 states have (on average 1.6493610223642172) internal successors, (2065), 1252 states have internal predecessors, (2065), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-12-16 18:52:54,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1264 states to 1264 states and 2085 transitions. [2023-12-16 18:52:54,067 INFO L78 Accepts]: Start accepts. Automaton has 1264 states and 2085 transitions. Word has length 548 [2023-12-16 18:52:54,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:52:54,068 INFO L495 AbstractCegarLoop]: Abstraction has 1264 states and 2085 transitions. [2023-12-16 18:52:54,068 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 100.2) internal successors, (501), 5 states have internal predecessors, (501), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-12-16 18:52:54,068 INFO L276 IsEmpty]: Start isEmpty. Operand 1264 states and 2085 transitions. [2023-12-16 18:52:54,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 550 [2023-12-16 18:52:54,071 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:52:54,071 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:52:54,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-16 18:52:54,071 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:52:54,072 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:52:54,072 INFO L85 PathProgramCache]: Analyzing trace with hash -768830077, now seen corresponding path program 1 times [2023-12-16 18:52:54,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 18:52:54,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245903261] [2023-12-16 18:52:54,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:52:54,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 18:52:54,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:54,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-12-16 18:52:54,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:54,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-16 18:52:54,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:54,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-12-16 18:52:54,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:54,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2023-12-16 18:52:54,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:54,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-12-16 18:52:54,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:54,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2023-12-16 18:52:54,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:54,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2023-12-16 18:52:54,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:54,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2023-12-16 18:52:54,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:54,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2023-12-16 18:52:54,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:54,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2023-12-16 18:52:54,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:54,742 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-12-16 18:52:54,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 18:52:54,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245903261] [2023-12-16 18:52:54,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245903261] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:52:54,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:52:54,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 18:52:54,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900832292] [2023-12-16 18:52:54,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:52:54,743 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 18:52:54,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 18:52:54,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 18:52:54,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-16 18:52:54,744 INFO L87 Difference]: Start difference. First operand 1264 states and 2085 transitions. Second operand has 5 states, 5 states have (on average 100.4) internal successors, (502), 5 states have internal predecessors, (502), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-12-16 18:52:54,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:52:54,896 INFO L93 Difference]: Finished difference Result 2332 states and 3844 transitions. [2023-12-16 18:52:54,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 18:52:54,897 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 100.4) internal successors, (502), 5 states have internal predecessors, (502), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 549 [2023-12-16 18:52:54,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:52:54,900 INFO L225 Difference]: With dead ends: 2332 [2023-12-16 18:52:54,901 INFO L226 Difference]: Without dead ends: 1264 [2023-12-16 18:52:54,902 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-16 18:52:54,902 INFO L413 NwaCegarLoop]: 2014 mSDtfsCounter, 1976 mSDsluCounter, 2029 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1986 SdHoareTripleChecker+Valid, 4043 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 18:52:54,903 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1986 Valid, 4043 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 18:52:54,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1264 states. [2023-12-16 18:52:54,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1264 to 1264. [2023-12-16 18:52:54,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1264 states, 1252 states have (on average 1.648562300319489) internal successors, (2064), 1252 states have internal predecessors, (2064), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-12-16 18:52:54,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1264 states to 1264 states and 2084 transitions. [2023-12-16 18:52:54,919 INFO L78 Accepts]: Start accepts. Automaton has 1264 states and 2084 transitions. Word has length 549 [2023-12-16 18:52:54,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:52:54,920 INFO L495 AbstractCegarLoop]: Abstraction has 1264 states and 2084 transitions. [2023-12-16 18:52:54,920 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 100.4) internal successors, (502), 5 states have internal predecessors, (502), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-12-16 18:52:54,920 INFO L276 IsEmpty]: Start isEmpty. Operand 1264 states and 2084 transitions. [2023-12-16 18:52:54,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 551 [2023-12-16 18:52:54,923 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:52:54,924 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:52:54,924 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-16 18:52:54,924 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:52:54,924 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:52:54,924 INFO L85 PathProgramCache]: Analyzing trace with hash 36891777, now seen corresponding path program 1 times [2023-12-16 18:52:54,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 18:52:54,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174268239] [2023-12-16 18:52:54,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:52:54,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 18:52:55,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:55,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-12-16 18:52:55,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:55,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-16 18:52:55,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:55,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-12-16 18:52:55,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:55,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2023-12-16 18:52:55,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:55,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-12-16 18:52:55,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:55,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2023-12-16 18:52:55,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:55,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2023-12-16 18:52:55,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:55,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2023-12-16 18:52:55,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:55,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2023-12-16 18:52:55,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:55,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2023-12-16 18:52:55,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:55,623 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-12-16 18:52:55,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 18:52:55,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174268239] [2023-12-16 18:52:55,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174268239] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:52:55,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:52:55,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 18:52:55,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279194414] [2023-12-16 18:52:55,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:52:55,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 18:52:55,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 18:52:55,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 18:52:55,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-16 18:52:55,625 INFO L87 Difference]: Start difference. First operand 1264 states and 2084 transitions. Second operand has 5 states, 5 states have (on average 100.6) internal successors, (503), 5 states have internal predecessors, (503), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-12-16 18:52:55,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:52:55,776 INFO L93 Difference]: Finished difference Result 2332 states and 3842 transitions. [2023-12-16 18:52:55,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 18:52:55,778 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 100.6) internal successors, (503), 5 states have internal predecessors, (503), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 550 [2023-12-16 18:52:55,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:52:55,782 INFO L225 Difference]: With dead ends: 2332 [2023-12-16 18:52:55,783 INFO L226 Difference]: Without dead ends: 1264 [2023-12-16 18:52:55,784 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-16 18:52:55,785 INFO L413 NwaCegarLoop]: 2013 mSDtfsCounter, 3544 mSDsluCounter, 2015 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3554 SdHoareTripleChecker+Valid, 4028 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 18:52:55,785 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3554 Valid, 4028 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 18:52:55,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1264 states. [2023-12-16 18:52:55,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1264 to 1264. [2023-12-16 18:52:55,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1264 states, 1252 states have (on average 1.6477635782747604) internal successors, (2063), 1252 states have internal predecessors, (2063), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-12-16 18:52:55,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1264 states to 1264 states and 2083 transitions. [2023-12-16 18:52:55,822 INFO L78 Accepts]: Start accepts. Automaton has 1264 states and 2083 transitions. Word has length 550 [2023-12-16 18:52:55,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:52:55,823 INFO L495 AbstractCegarLoop]: Abstraction has 1264 states and 2083 transitions. [2023-12-16 18:52:55,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 100.6) internal successors, (503), 5 states have internal predecessors, (503), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-12-16 18:52:55,823 INFO L276 IsEmpty]: Start isEmpty. Operand 1264 states and 2083 transitions. [2023-12-16 18:52:55,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 552 [2023-12-16 18:52:55,836 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:52:55,836 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:52:55,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-16 18:52:55,836 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:52:55,836 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:52:55,837 INFO L85 PathProgramCache]: Analyzing trace with hash 272967327, now seen corresponding path program 1 times [2023-12-16 18:52:55,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 18:52:55,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729364047] [2023-12-16 18:52:55,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:52:55,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 18:52:56,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:56,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-12-16 18:52:56,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:56,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-16 18:52:56,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:56,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-12-16 18:52:56,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:56,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2023-12-16 18:52:56,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:56,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-12-16 18:52:56,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:56,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2023-12-16 18:52:56,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:56,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2023-12-16 18:52:56,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:56,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2023-12-16 18:52:56,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:56,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2023-12-16 18:52:56,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:56,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2023-12-16 18:52:56,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:56,566 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-12-16 18:52:56,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 18:52:56,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729364047] [2023-12-16 18:52:56,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729364047] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:52:56,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:52:56,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 18:52:56,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525224018] [2023-12-16 18:52:56,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:52:56,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 18:52:56,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 18:52:56,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 18:52:56,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-16 18:52:56,569 INFO L87 Difference]: Start difference. First operand 1264 states and 2083 transitions. Second operand has 5 states, 5 states have (on average 100.8) internal successors, (504), 5 states have internal predecessors, (504), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-12-16 18:52:56,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:52:56,715 INFO L93 Difference]: Finished difference Result 2332 states and 3840 transitions. [2023-12-16 18:52:56,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 18:52:56,716 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 100.8) internal successors, (504), 5 states have internal predecessors, (504), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 551 [2023-12-16 18:52:56,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:52:56,721 INFO L225 Difference]: With dead ends: 2332 [2023-12-16 18:52:56,721 INFO L226 Difference]: Without dead ends: 1264 [2023-12-16 18:52:56,722 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-16 18:52:56,723 INFO L413 NwaCegarLoop]: 2014 mSDtfsCounter, 1893 mSDsluCounter, 2029 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1903 SdHoareTripleChecker+Valid, 4043 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 18:52:56,723 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1903 Valid, 4043 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 18:52:56,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1264 states. [2023-12-16 18:52:56,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1264 to 1264. [2023-12-16 18:52:56,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1264 states, 1252 states have (on average 1.6469648562300319) internal successors, (2062), 1252 states have internal predecessors, (2062), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-12-16 18:52:56,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1264 states to 1264 states and 2082 transitions. [2023-12-16 18:52:56,746 INFO L78 Accepts]: Start accepts. Automaton has 1264 states and 2082 transitions. Word has length 551 [2023-12-16 18:52:56,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:52:56,747 INFO L495 AbstractCegarLoop]: Abstraction has 1264 states and 2082 transitions. [2023-12-16 18:52:56,747 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 100.8) internal successors, (504), 5 states have internal predecessors, (504), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-12-16 18:52:56,747 INFO L276 IsEmpty]: Start isEmpty. Operand 1264 states and 2082 transitions. [2023-12-16 18:52:56,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 553 [2023-12-16 18:52:56,752 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:52:56,752 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:52:56,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-16 18:52:56,752 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:52:56,752 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:52:56,753 INFO L85 PathProgramCache]: Analyzing trace with hash -1864968549, now seen corresponding path program 1 times [2023-12-16 18:52:56,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 18:52:56,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475801936] [2023-12-16 18:52:56,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:52:56,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 18:52:56,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:57,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-12-16 18:52:57,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:57,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-16 18:52:57,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:57,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-12-16 18:52:57,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:57,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2023-12-16 18:52:57,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:57,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-12-16 18:52:57,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:57,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2023-12-16 18:52:57,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:57,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2023-12-16 18:52:57,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:57,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2023-12-16 18:52:57,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:57,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2023-12-16 18:52:57,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:57,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2023-12-16 18:52:57,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:57,639 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-12-16 18:52:57,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 18:52:57,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475801936] [2023-12-16 18:52:57,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475801936] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:52:57,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:52:57,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 18:52:57,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557725840] [2023-12-16 18:52:57,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:52:57,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 18:52:57,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 18:52:57,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 18:52:57,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 18:52:57,641 INFO L87 Difference]: Start difference. First operand 1264 states and 2082 transitions. Second operand has 4 states, 4 states have (on average 126.25) internal successors, (505), 4 states have internal predecessors, (505), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-12-16 18:52:57,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:52:57,834 INFO L93 Difference]: Finished difference Result 2332 states and 3838 transitions. [2023-12-16 18:52:57,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 18:52:57,835 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 126.25) internal successors, (505), 4 states have internal predecessors, (505), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 552 [2023-12-16 18:52:57,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:52:57,839 INFO L225 Difference]: With dead ends: 2332 [2023-12-16 18:52:57,839 INFO L226 Difference]: Without dead ends: 1264 [2023-12-16 18:52:57,840 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 18:52:57,841 INFO L413 NwaCegarLoop]: 1963 mSDtfsCounter, 1800 mSDsluCounter, 1965 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1800 SdHoareTripleChecker+Valid, 3928 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 18:52:57,841 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1800 Valid, 3928 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 18:52:57,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1264 states. [2023-12-16 18:52:57,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1264 to 1264. [2023-12-16 18:52:57,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1264 states, 1252 states have (on average 1.6461661341853036) internal successors, (2061), 1252 states have internal predecessors, (2061), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-12-16 18:52:57,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1264 states to 1264 states and 2081 transitions. [2023-12-16 18:52:57,861 INFO L78 Accepts]: Start accepts. Automaton has 1264 states and 2081 transitions. Word has length 552 [2023-12-16 18:52:57,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:52:57,862 INFO L495 AbstractCegarLoop]: Abstraction has 1264 states and 2081 transitions. [2023-12-16 18:52:57,862 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 126.25) internal successors, (505), 4 states have internal predecessors, (505), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-12-16 18:52:57,862 INFO L276 IsEmpty]: Start isEmpty. Operand 1264 states and 2081 transitions. [2023-12-16 18:52:57,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 554 [2023-12-16 18:52:57,865 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:52:57,865 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:52:57,865 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-16 18:52:57,866 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:52:57,866 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:52:57,866 INFO L85 PathProgramCache]: Analyzing trace with hash 640357733, now seen corresponding path program 1 times [2023-12-16 18:52:57,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 18:52:57,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482592529] [2023-12-16 18:52:57,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:52:57,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 18:52:58,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:58,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-12-16 18:52:58,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:58,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-16 18:52:58,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:58,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-12-16 18:52:58,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:58,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2023-12-16 18:52:58,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:58,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-12-16 18:52:58,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:58,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2023-12-16 18:52:58,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:58,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2023-12-16 18:52:58,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:58,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2023-12-16 18:52:58,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:58,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2023-12-16 18:52:58,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:58,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2023-12-16 18:52:58,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:58,464 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-12-16 18:52:58,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 18:52:58,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482592529] [2023-12-16 18:52:58,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482592529] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:52:58,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:52:58,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 18:52:58,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906971289] [2023-12-16 18:52:58,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:52:58,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 18:52:58,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 18:52:58,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 18:52:58,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 18:52:58,467 INFO L87 Difference]: Start difference. First operand 1264 states and 2081 transitions. Second operand has 5 states, 5 states have (on average 101.2) internal successors, (506), 5 states have internal predecessors, (506), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-12-16 18:52:58,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:52:58,631 INFO L93 Difference]: Finished difference Result 2336 states and 3841 transitions. [2023-12-16 18:52:58,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 18:52:58,632 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 101.2) internal successors, (506), 5 states have internal predecessors, (506), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 553 [2023-12-16 18:52:58,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:52:58,637 INFO L225 Difference]: With dead ends: 2336 [2023-12-16 18:52:58,637 INFO L226 Difference]: Without dead ends: 1264 [2023-12-16 18:52:58,639 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-16 18:52:58,639 INFO L413 NwaCegarLoop]: 2065 mSDtfsCounter, 1808 mSDsluCounter, 4040 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1808 SdHoareTripleChecker+Valid, 6105 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 18:52:58,639 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1808 Valid, 6105 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 18:52:58,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1264 states. [2023-12-16 18:52:58,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1264 to 1264. [2023-12-16 18:52:58,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1264 states, 1252 states have (on average 1.645367412140575) internal successors, (2060), 1252 states have internal predecessors, (2060), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-12-16 18:52:58,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1264 states to 1264 states and 2080 transitions. [2023-12-16 18:52:58,658 INFO L78 Accepts]: Start accepts. Automaton has 1264 states and 2080 transitions. Word has length 553 [2023-12-16 18:52:58,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:52:58,659 INFO L495 AbstractCegarLoop]: Abstraction has 1264 states and 2080 transitions. [2023-12-16 18:52:58,659 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 101.2) internal successors, (506), 5 states have internal predecessors, (506), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-12-16 18:52:58,659 INFO L276 IsEmpty]: Start isEmpty. Operand 1264 states and 2080 transitions. [2023-12-16 18:52:58,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 555 [2023-12-16 18:52:58,662 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:52:58,662 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:52:58,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-16 18:52:58,662 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:52:58,663 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:52:58,663 INFO L85 PathProgramCache]: Analyzing trace with hash -1662455409, now seen corresponding path program 1 times [2023-12-16 18:52:58,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 18:52:58,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581836073] [2023-12-16 18:52:58,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:52:58,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 18:52:58,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:59,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-12-16 18:52:59,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:59,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-16 18:52:59,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:59,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-12-16 18:52:59,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:59,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2023-12-16 18:52:59,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:59,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-12-16 18:52:59,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:59,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2023-12-16 18:52:59,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:59,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2023-12-16 18:52:59,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:59,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2023-12-16 18:52:59,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:59,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2023-12-16 18:52:59,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:59,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2023-12-16 18:52:59,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:52:59,277 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-12-16 18:52:59,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 18:52:59,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581836073] [2023-12-16 18:52:59,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581836073] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:52:59,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:52:59,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 18:52:59,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249803027] [2023-12-16 18:52:59,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:52:59,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 18:52:59,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 18:52:59,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 18:52:59,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-16 18:52:59,279 INFO L87 Difference]: Start difference. First operand 1264 states and 2080 transitions. Second operand has 5 states, 5 states have (on average 101.4) internal successors, (507), 5 states have internal predecessors, (507), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-12-16 18:52:59,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:52:59,473 INFO L93 Difference]: Finished difference Result 2332 states and 3834 transitions. [2023-12-16 18:52:59,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 18:52:59,474 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 101.4) internal successors, (507), 5 states have internal predecessors, (507), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 554 [2023-12-16 18:52:59,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:52:59,477 INFO L225 Difference]: With dead ends: 2332 [2023-12-16 18:52:59,477 INFO L226 Difference]: Without dead ends: 1264 [2023-12-16 18:52:59,479 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-16 18:52:59,479 INFO L413 NwaCegarLoop]: 1963 mSDtfsCounter, 3848 mSDsluCounter, 1965 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3858 SdHoareTripleChecker+Valid, 3928 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 18:52:59,479 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3858 Valid, 3928 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 18:52:59,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1264 states. [2023-12-16 18:52:59,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1264 to 1264. [2023-12-16 18:52:59,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1264 states, 1252 states have (on average 1.6445686900958467) internal successors, (2059), 1252 states have internal predecessors, (2059), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-12-16 18:52:59,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1264 states to 1264 states and 2079 transitions. [2023-12-16 18:52:59,496 INFO L78 Accepts]: Start accepts. Automaton has 1264 states and 2079 transitions. Word has length 554 [2023-12-16 18:52:59,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:52:59,497 INFO L495 AbstractCegarLoop]: Abstraction has 1264 states and 2079 transitions. [2023-12-16 18:52:59,497 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 101.4) internal successors, (507), 5 states have internal predecessors, (507), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-12-16 18:52:59,497 INFO L276 IsEmpty]: Start isEmpty. Operand 1264 states and 2079 transitions. [2023-12-16 18:52:59,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 556 [2023-12-16 18:52:59,500 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:52:59,500 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:52:59,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-16 18:52:59,500 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:52:59,501 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:52:59,501 INFO L85 PathProgramCache]: Analyzing trace with hash -1348515573, now seen corresponding path program 1 times [2023-12-16 18:52:59,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 18:52:59,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628431950] [2023-12-16 18:52:59,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:52:59,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 18:52:59,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:00,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-12-16 18:53:00,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:00,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-16 18:53:00,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:00,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-12-16 18:53:00,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:00,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2023-12-16 18:53:00,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:00,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-12-16 18:53:00,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:00,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2023-12-16 18:53:00,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:00,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2023-12-16 18:53:00,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:00,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2023-12-16 18:53:00,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:00,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2023-12-16 18:53:00,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:00,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2023-12-16 18:53:00,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:00,072 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-12-16 18:53:00,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 18:53:00,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628431950] [2023-12-16 18:53:00,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [628431950] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:53:00,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:53:00,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 18:53:00,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510900271] [2023-12-16 18:53:00,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:53:00,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 18:53:00,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 18:53:00,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 18:53:00,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-16 18:53:00,075 INFO L87 Difference]: Start difference. First operand 1264 states and 2079 transitions. Second operand has 5 states, 5 states have (on average 101.6) internal successors, (508), 5 states have internal predecessors, (508), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-12-16 18:53:00,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:53:00,289 INFO L93 Difference]: Finished difference Result 2332 states and 3832 transitions. [2023-12-16 18:53:00,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 18:53:00,290 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 101.6) internal successors, (508), 5 states have internal predecessors, (508), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 555 [2023-12-16 18:53:00,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:53:00,294 INFO L225 Difference]: With dead ends: 2332 [2023-12-16 18:53:00,294 INFO L226 Difference]: Without dead ends: 1264 [2023-12-16 18:53:00,296 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-16 18:53:00,296 INFO L413 NwaCegarLoop]: 1963 mSDtfsCounter, 3834 mSDsluCounter, 1965 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3844 SdHoareTripleChecker+Valid, 3928 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 18:53:00,296 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3844 Valid, 3928 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 18:53:00,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1264 states. [2023-12-16 18:53:00,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1264 to 1264. [2023-12-16 18:53:00,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1264 states, 1252 states have (on average 1.6437699680511182) internal successors, (2058), 1252 states have internal predecessors, (2058), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-12-16 18:53:00,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1264 states to 1264 states and 2078 transitions. [2023-12-16 18:53:00,313 INFO L78 Accepts]: Start accepts. Automaton has 1264 states and 2078 transitions. Word has length 555 [2023-12-16 18:53:00,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:53:00,314 INFO L495 AbstractCegarLoop]: Abstraction has 1264 states and 2078 transitions. [2023-12-16 18:53:00,314 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 101.6) internal successors, (508), 5 states have internal predecessors, (508), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-12-16 18:53:00,314 INFO L276 IsEmpty]: Start isEmpty. Operand 1264 states and 2078 transitions. [2023-12-16 18:53:00,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 557 [2023-12-16 18:53:00,317 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:53:00,317 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:53:00,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-16 18:53:00,317 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:53:00,317 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:53:00,318 INFO L85 PathProgramCache]: Analyzing trace with hash -1643981043, now seen corresponding path program 1 times [2023-12-16 18:53:00,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 18:53:00,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617216462] [2023-12-16 18:53:00,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:53:00,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 18:53:00,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:00,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-12-16 18:53:00,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:00,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-16 18:53:00,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:00,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-12-16 18:53:00,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:00,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2023-12-16 18:53:00,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:00,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-12-16 18:53:00,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:00,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2023-12-16 18:53:00,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:00,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2023-12-16 18:53:00,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:00,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2023-12-16 18:53:00,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:00,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2023-12-16 18:53:00,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:00,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2023-12-16 18:53:00,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:00,953 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-12-16 18:53:00,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 18:53:00,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617216462] [2023-12-16 18:53:00,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617216462] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:53:00,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:53:00,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 18:53:00,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471164723] [2023-12-16 18:53:00,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:53:00,954 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 18:53:00,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 18:53:00,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 18:53:00,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-16 18:53:00,955 INFO L87 Difference]: Start difference. First operand 1264 states and 2078 transitions. Second operand has 5 states, 5 states have (on average 101.8) internal successors, (509), 5 states have internal predecessors, (509), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-12-16 18:53:01,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:53:01,155 INFO L93 Difference]: Finished difference Result 2332 states and 3830 transitions. [2023-12-16 18:53:01,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 18:53:01,156 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 101.8) internal successors, (509), 5 states have internal predecessors, (509), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 556 [2023-12-16 18:53:01,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:53:01,160 INFO L225 Difference]: With dead ends: 2332 [2023-12-16 18:53:01,160 INFO L226 Difference]: Without dead ends: 1264 [2023-12-16 18:53:01,161 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-16 18:53:01,161 INFO L413 NwaCegarLoop]: 1963 mSDtfsCounter, 1968 mSDsluCounter, 1978 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1978 SdHoareTripleChecker+Valid, 3941 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 18:53:01,162 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1978 Valid, 3941 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 18:53:01,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1264 states. [2023-12-16 18:53:01,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1264 to 1264. [2023-12-16 18:53:01,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1264 states, 1252 states have (on average 1.6429712460063899) internal successors, (2057), 1252 states have internal predecessors, (2057), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-12-16 18:53:01,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1264 states to 1264 states and 2077 transitions. [2023-12-16 18:53:01,182 INFO L78 Accepts]: Start accepts. Automaton has 1264 states and 2077 transitions. Word has length 556 [2023-12-16 18:53:01,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:53:01,182 INFO L495 AbstractCegarLoop]: Abstraction has 1264 states and 2077 transitions. [2023-12-16 18:53:01,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 101.8) internal successors, (509), 5 states have internal predecessors, (509), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-12-16 18:53:01,183 INFO L276 IsEmpty]: Start isEmpty. Operand 1264 states and 2077 transitions. [2023-12-16 18:53:01,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 558 [2023-12-16 18:53:01,185 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:53:01,186 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:53:01,186 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-16 18:53:01,186 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:53:01,186 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:53:01,186 INFO L85 PathProgramCache]: Analyzing trace with hash -1295221357, now seen corresponding path program 1 times [2023-12-16 18:53:01,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 18:53:01,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763132168] [2023-12-16 18:53:01,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:53:01,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 18:53:01,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:01,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-12-16 18:53:01,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:01,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-16 18:53:01,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:01,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-12-16 18:53:01,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:01,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2023-12-16 18:53:01,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:01,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-12-16 18:53:01,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:01,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2023-12-16 18:53:01,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:01,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2023-12-16 18:53:01,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:01,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2023-12-16 18:53:01,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:01,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2023-12-16 18:53:01,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:01,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2023-12-16 18:53:01,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:01,917 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-12-16 18:53:01,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 18:53:01,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763132168] [2023-12-16 18:53:01,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763132168] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:53:01,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:53:01,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 18:53:01,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021664780] [2023-12-16 18:53:01,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:53:01,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 18:53:01,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 18:53:01,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 18:53:01,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-16 18:53:01,922 INFO L87 Difference]: Start difference. First operand 1264 states and 2077 transitions. Second operand has 5 states, 5 states have (on average 102.0) internal successors, (510), 5 states have internal predecessors, (510), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-12-16 18:53:02,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:53:02,111 INFO L93 Difference]: Finished difference Result 2332 states and 3828 transitions. [2023-12-16 18:53:02,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 18:53:02,111 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 102.0) internal successors, (510), 5 states have internal predecessors, (510), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 557 [2023-12-16 18:53:02,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:53:02,115 INFO L225 Difference]: With dead ends: 2332 [2023-12-16 18:53:02,115 INFO L226 Difference]: Without dead ends: 1264 [2023-12-16 18:53:02,116 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-16 18:53:02,117 INFO L413 NwaCegarLoop]: 1963 mSDtfsCounter, 1964 mSDsluCounter, 1978 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1974 SdHoareTripleChecker+Valid, 3941 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 18:53:02,117 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1974 Valid, 3941 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 18:53:02,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1264 states. [2023-12-16 18:53:02,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1264 to 1264. [2023-12-16 18:53:02,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1264 states, 1252 states have (on average 1.6421725239616614) internal successors, (2056), 1252 states have internal predecessors, (2056), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-12-16 18:53:02,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1264 states to 1264 states and 2076 transitions. [2023-12-16 18:53:02,134 INFO L78 Accepts]: Start accepts. Automaton has 1264 states and 2076 transitions. Word has length 557 [2023-12-16 18:53:02,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:53:02,134 INFO L495 AbstractCegarLoop]: Abstraction has 1264 states and 2076 transitions. [2023-12-16 18:53:02,135 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 102.0) internal successors, (510), 5 states have internal predecessors, (510), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-12-16 18:53:02,135 INFO L276 IsEmpty]: Start isEmpty. Operand 1264 states and 2076 transitions. [2023-12-16 18:53:02,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 559 [2023-12-16 18:53:02,139 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:53:02,139 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:53:02,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-16 18:53:02,139 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:53:02,140 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:53:02,140 INFO L85 PathProgramCache]: Analyzing trace with hash 967288113, now seen corresponding path program 1 times [2023-12-16 18:53:02,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 18:53:02,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496192826] [2023-12-16 18:53:02,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:53:02,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 18:53:02,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:02,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-12-16 18:53:02,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:02,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-16 18:53:02,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:02,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-12-16 18:53:02,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:02,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2023-12-16 18:53:02,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:02,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-12-16 18:53:02,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:02,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2023-12-16 18:53:02,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:02,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2023-12-16 18:53:02,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:02,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2023-12-16 18:53:02,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:02,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2023-12-16 18:53:02,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:02,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2023-12-16 18:53:02,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:02,755 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-12-16 18:53:02,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 18:53:02,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496192826] [2023-12-16 18:53:02,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496192826] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:53:02,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:53:02,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 18:53:02,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34220182] [2023-12-16 18:53:02,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:53:02,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 18:53:02,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 18:53:02,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 18:53:02,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-16 18:53:02,757 INFO L87 Difference]: Start difference. First operand 1264 states and 2076 transitions. Second operand has 5 states, 5 states have (on average 102.2) internal successors, (511), 5 states have internal predecessors, (511), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-12-16 18:53:02,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:53:02,955 INFO L93 Difference]: Finished difference Result 2332 states and 3826 transitions. [2023-12-16 18:53:02,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 18:53:02,955 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 102.2) internal successors, (511), 5 states have internal predecessors, (511), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 558 [2023-12-16 18:53:02,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:53:02,958 INFO L225 Difference]: With dead ends: 2332 [2023-12-16 18:53:02,958 INFO L226 Difference]: Without dead ends: 1264 [2023-12-16 18:53:02,959 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-16 18:53:02,960 INFO L413 NwaCegarLoop]: 1963 mSDtfsCounter, 1960 mSDsluCounter, 1978 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1970 SdHoareTripleChecker+Valid, 3941 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 18:53:02,960 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1970 Valid, 3941 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 18:53:02,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1264 states. [2023-12-16 18:53:02,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1264 to 1264. [2023-12-16 18:53:02,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1264 states, 1252 states have (on average 1.6413738019169328) internal successors, (2055), 1252 states have internal predecessors, (2055), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-12-16 18:53:02,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1264 states to 1264 states and 2075 transitions. [2023-12-16 18:53:02,977 INFO L78 Accepts]: Start accepts. Automaton has 1264 states and 2075 transitions. Word has length 558 [2023-12-16 18:53:02,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:53:02,977 INFO L495 AbstractCegarLoop]: Abstraction has 1264 states and 2075 transitions. [2023-12-16 18:53:02,978 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 102.2) internal successors, (511), 5 states have internal predecessors, (511), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-12-16 18:53:02,978 INFO L276 IsEmpty]: Start isEmpty. Operand 1264 states and 2075 transitions. [2023-12-16 18:53:02,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 560 [2023-12-16 18:53:02,980 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:53:02,981 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:53:02,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-16 18:53:02,981 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:53:02,981 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:53:02,981 INFO L85 PathProgramCache]: Analyzing trace with hash -739836231, now seen corresponding path program 1 times [2023-12-16 18:53:02,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 18:53:02,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328110388] [2023-12-16 18:53:02,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:53:02,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 18:53:03,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:03,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-12-16 18:53:03,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:03,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-16 18:53:03,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:03,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-12-16 18:53:03,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:03,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2023-12-16 18:53:03,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:03,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-12-16 18:53:03,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:03,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2023-12-16 18:53:03,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:03,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2023-12-16 18:53:03,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:03,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2023-12-16 18:53:03,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:03,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2023-12-16 18:53:03,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:03,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2023-12-16 18:53:03,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:03,581 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-12-16 18:53:03,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 18:53:03,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328110388] [2023-12-16 18:53:03,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328110388] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:53:03,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:53:03,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 18:53:03,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686880320] [2023-12-16 18:53:03,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:53:03,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 18:53:03,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 18:53:03,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 18:53:03,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-16 18:53:03,583 INFO L87 Difference]: Start difference. First operand 1264 states and 2075 transitions. Second operand has 5 states, 5 states have (on average 102.4) internal successors, (512), 5 states have internal predecessors, (512), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-12-16 18:53:03,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:53:03,778 INFO L93 Difference]: Finished difference Result 2332 states and 3824 transitions. [2023-12-16 18:53:03,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 18:53:03,779 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 102.4) internal successors, (512), 5 states have internal predecessors, (512), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 559 [2023-12-16 18:53:03,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:53:03,782 INFO L225 Difference]: With dead ends: 2332 [2023-12-16 18:53:03,782 INFO L226 Difference]: Without dead ends: 1264 [2023-12-16 18:53:03,783 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-16 18:53:03,783 INFO L413 NwaCegarLoop]: 1963 mSDtfsCounter, 3656 mSDsluCounter, 1965 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3666 SdHoareTripleChecker+Valid, 3928 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 18:53:03,784 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3666 Valid, 3928 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 18:53:03,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1264 states. [2023-12-16 18:53:03,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1264 to 1264. [2023-12-16 18:53:03,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1264 states, 1252 states have (on average 1.6405750798722045) internal successors, (2054), 1252 states have internal predecessors, (2054), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-12-16 18:53:03,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1264 states to 1264 states and 2074 transitions. [2023-12-16 18:53:03,800 INFO L78 Accepts]: Start accepts. Automaton has 1264 states and 2074 transitions. Word has length 559 [2023-12-16 18:53:03,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:53:03,800 INFO L495 AbstractCegarLoop]: Abstraction has 1264 states and 2074 transitions. [2023-12-16 18:53:03,800 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 102.4) internal successors, (512), 5 states have internal predecessors, (512), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-12-16 18:53:03,801 INFO L276 IsEmpty]: Start isEmpty. Operand 1264 states and 2074 transitions. [2023-12-16 18:53:03,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 561 [2023-12-16 18:53:03,803 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:53:03,804 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:53:03,804 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-16 18:53:03,804 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:53:03,804 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:53:03,804 INFO L85 PathProgramCache]: Analyzing trace with hash 1241023767, now seen corresponding path program 1 times [2023-12-16 18:53:03,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 18:53:03,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344935223] [2023-12-16 18:53:03,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:53:03,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 18:53:04,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:04,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-12-16 18:53:04,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:04,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-16 18:53:04,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:04,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-12-16 18:53:04,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:04,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2023-12-16 18:53:04,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:04,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-12-16 18:53:04,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:04,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2023-12-16 18:53:04,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:04,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2023-12-16 18:53:04,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:04,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2023-12-16 18:53:04,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:04,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2023-12-16 18:53:04,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:04,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2023-12-16 18:53:04,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:04,494 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-12-16 18:53:04,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 18:53:04,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344935223] [2023-12-16 18:53:04,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344935223] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:53:04,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:53:04,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 18:53:04,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590715628] [2023-12-16 18:53:04,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:53:04,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 18:53:04,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 18:53:04,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 18:53:04,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-16 18:53:04,497 INFO L87 Difference]: Start difference. First operand 1264 states and 2074 transitions. Second operand has 5 states, 5 states have (on average 102.6) internal successors, (513), 5 states have internal predecessors, (513), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-12-16 18:53:04,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:53:04,681 INFO L93 Difference]: Finished difference Result 2332 states and 3822 transitions. [2023-12-16 18:53:04,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 18:53:04,681 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 102.6) internal successors, (513), 5 states have internal predecessors, (513), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 560 [2023-12-16 18:53:04,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:53:04,684 INFO L225 Difference]: With dead ends: 2332 [2023-12-16 18:53:04,684 INFO L226 Difference]: Without dead ends: 1264 [2023-12-16 18:53:04,685 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-16 18:53:04,685 INFO L413 NwaCegarLoop]: 1963 mSDtfsCounter, 3502 mSDsluCounter, 1965 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3512 SdHoareTripleChecker+Valid, 3928 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 18:53:04,685 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3512 Valid, 3928 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 219 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 18:53:04,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1264 states. [2023-12-16 18:53:04,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1264 to 1264. [2023-12-16 18:53:04,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1264 states, 1252 states have (on average 1.639776357827476) internal successors, (2053), 1252 states have internal predecessors, (2053), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-12-16 18:53:04,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1264 states to 1264 states and 2073 transitions. [2023-12-16 18:53:04,702 INFO L78 Accepts]: Start accepts. Automaton has 1264 states and 2073 transitions. Word has length 560 [2023-12-16 18:53:04,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:53:04,703 INFO L495 AbstractCegarLoop]: Abstraction has 1264 states and 2073 transitions. [2023-12-16 18:53:04,703 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 102.6) internal successors, (513), 5 states have internal predecessors, (513), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-12-16 18:53:04,703 INFO L276 IsEmpty]: Start isEmpty. Operand 1264 states and 2073 transitions. [2023-12-16 18:53:04,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 562 [2023-12-16 18:53:04,706 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:53:04,706 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:53:04,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-12-16 18:53:04,707 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:53:04,707 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:53:04,707 INFO L85 PathProgramCache]: Analyzing trace with hash -910836739, now seen corresponding path program 1 times [2023-12-16 18:53:04,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 18:53:04,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119829289] [2023-12-16 18:53:04,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:53:04,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 18:53:04,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:05,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-12-16 18:53:05,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:05,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-16 18:53:05,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:05,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-12-16 18:53:05,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:05,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2023-12-16 18:53:05,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:05,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-12-16 18:53:05,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:05,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2023-12-16 18:53:05,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:05,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2023-12-16 18:53:05,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:05,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2023-12-16 18:53:05,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:05,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2023-12-16 18:53:05,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:05,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2023-12-16 18:53:05,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:05,327 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-12-16 18:53:05,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 18:53:05,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119829289] [2023-12-16 18:53:05,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119829289] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:53:05,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:53:05,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 18:53:05,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598477955] [2023-12-16 18:53:05,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:53:05,328 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 18:53:05,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 18:53:05,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 18:53:05,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-16 18:53:05,329 INFO L87 Difference]: Start difference. First operand 1264 states and 2073 transitions. Second operand has 5 states, 5 states have (on average 102.8) internal successors, (514), 5 states have internal predecessors, (514), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-12-16 18:53:05,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:53:05,553 INFO L93 Difference]: Finished difference Result 2332 states and 3820 transitions. [2023-12-16 18:53:05,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 18:53:05,554 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 102.8) internal successors, (514), 5 states have internal predecessors, (514), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 561 [2023-12-16 18:53:05,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:53:05,556 INFO L225 Difference]: With dead ends: 2332 [2023-12-16 18:53:05,556 INFO L226 Difference]: Without dead ends: 1264 [2023-12-16 18:53:05,557 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-16 18:53:05,558 INFO L413 NwaCegarLoop]: 1963 mSDtfsCounter, 1875 mSDsluCounter, 1978 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1885 SdHoareTripleChecker+Valid, 3941 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 18:53:05,558 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1885 Valid, 3941 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 18:53:05,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1264 states. [2023-12-16 18:53:05,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1264 to 1264. [2023-12-16 18:53:05,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1264 states, 1252 states have (on average 1.6389776357827477) internal successors, (2052), 1252 states have internal predecessors, (2052), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-12-16 18:53:05,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1264 states to 1264 states and 2072 transitions. [2023-12-16 18:53:05,574 INFO L78 Accepts]: Start accepts. Automaton has 1264 states and 2072 transitions. Word has length 561 [2023-12-16 18:53:05,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:53:05,574 INFO L495 AbstractCegarLoop]: Abstraction has 1264 states and 2072 transitions. [2023-12-16 18:53:05,575 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 102.8) internal successors, (514), 5 states have internal predecessors, (514), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-12-16 18:53:05,575 INFO L276 IsEmpty]: Start isEmpty. Operand 1264 states and 2072 transitions. [2023-12-16 18:53:05,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 563 [2023-12-16 18:53:05,578 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:53:05,578 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:53:05,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-12-16 18:53:05,578 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:53:05,578 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:53:05,578 INFO L85 PathProgramCache]: Analyzing trace with hash 179306991, now seen corresponding path program 1 times [2023-12-16 18:53:05,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 18:53:05,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257317581] [2023-12-16 18:53:05,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:53:05,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 18:53:05,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:06,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-12-16 18:53:06,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:06,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-16 18:53:06,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:06,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-12-16 18:53:06,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:06,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2023-12-16 18:53:06,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:06,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-12-16 18:53:06,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:06,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2023-12-16 18:53:06,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:06,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2023-12-16 18:53:06,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:06,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2023-12-16 18:53:06,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:06,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2023-12-16 18:53:06,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:06,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2023-12-16 18:53:06,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:06,205 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-12-16 18:53:06,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 18:53:06,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257317581] [2023-12-16 18:53:06,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257317581] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:53:06,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:53:06,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 18:53:06,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223667620] [2023-12-16 18:53:06,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:53:06,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 18:53:06,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 18:53:06,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 18:53:06,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-16 18:53:06,207 INFO L87 Difference]: Start difference. First operand 1264 states and 2072 transitions. Second operand has 5 states, 5 states have (on average 103.0) internal successors, (515), 5 states have internal predecessors, (515), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-12-16 18:53:06,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:53:06,409 INFO L93 Difference]: Finished difference Result 2332 states and 3818 transitions. [2023-12-16 18:53:06,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 18:53:06,409 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 103.0) internal successors, (515), 5 states have internal predecessors, (515), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 562 [2023-12-16 18:53:06,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:53:06,411 INFO L225 Difference]: With dead ends: 2332 [2023-12-16 18:53:06,411 INFO L226 Difference]: Without dead ends: 1264 [2023-12-16 18:53:06,412 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-16 18:53:06,413 INFO L413 NwaCegarLoop]: 1963 mSDtfsCounter, 3486 mSDsluCounter, 1965 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3496 SdHoareTripleChecker+Valid, 3928 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 18:53:06,414 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3496 Valid, 3928 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 18:53:06,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1264 states. [2023-12-16 18:53:06,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1264 to 1264. [2023-12-16 18:53:06,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1264 states, 1252 states have (on average 1.6381789137380192) internal successors, (2051), 1252 states have internal predecessors, (2051), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-12-16 18:53:06,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1264 states to 1264 states and 2071 transitions. [2023-12-16 18:53:06,465 INFO L78 Accepts]: Start accepts. Automaton has 1264 states and 2071 transitions. Word has length 562 [2023-12-16 18:53:06,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:53:06,465 INFO L495 AbstractCegarLoop]: Abstraction has 1264 states and 2071 transitions. [2023-12-16 18:53:06,466 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 103.0) internal successors, (515), 5 states have internal predecessors, (515), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-12-16 18:53:06,466 INFO L276 IsEmpty]: Start isEmpty. Operand 1264 states and 2071 transitions. [2023-12-16 18:53:06,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 564 [2023-12-16 18:53:06,469 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:53:06,469 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:53:06,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-12-16 18:53:06,469 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:53:06,469 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:53:06,469 INFO L85 PathProgramCache]: Analyzing trace with hash 939962201, now seen corresponding path program 1 times [2023-12-16 18:53:06,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 18:53:06,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306691925] [2023-12-16 18:53:06,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:53:06,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 18:53:06,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:07,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-12-16 18:53:07,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:07,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-16 18:53:07,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:07,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-12-16 18:53:07,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:07,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2023-12-16 18:53:07,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:07,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-12-16 18:53:07,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:07,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2023-12-16 18:53:07,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:07,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2023-12-16 18:53:07,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:07,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2023-12-16 18:53:07,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:07,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2023-12-16 18:53:07,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:07,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2023-12-16 18:53:07,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:07,087 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-12-16 18:53:07,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 18:53:07,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306691925] [2023-12-16 18:53:07,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306691925] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:53:07,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:53:07,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 18:53:07,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768465636] [2023-12-16 18:53:07,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:53:07,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 18:53:07,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 18:53:07,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 18:53:07,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-16 18:53:07,089 INFO L87 Difference]: Start difference. First operand 1264 states and 2071 transitions. Second operand has 5 states, 5 states have (on average 103.2) internal successors, (516), 5 states have internal predecessors, (516), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-12-16 18:53:07,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:53:07,274 INFO L93 Difference]: Finished difference Result 2332 states and 3816 transitions. [2023-12-16 18:53:07,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 18:53:07,274 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 103.2) internal successors, (516), 5 states have internal predecessors, (516), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 563 [2023-12-16 18:53:07,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:53:07,276 INFO L225 Difference]: With dead ends: 2332 [2023-12-16 18:53:07,276 INFO L226 Difference]: Without dead ends: 1264 [2023-12-16 18:53:07,277 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-16 18:53:07,278 INFO L413 NwaCegarLoop]: 1963 mSDtfsCounter, 3478 mSDsluCounter, 1965 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3488 SdHoareTripleChecker+Valid, 3928 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 18:53:07,278 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3488 Valid, 3928 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 18:53:07,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1264 states. [2023-12-16 18:53:07,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1264 to 1264. [2023-12-16 18:53:07,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1264 states, 1252 states have (on average 1.6373801916932906) internal successors, (2050), 1252 states have internal predecessors, (2050), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-12-16 18:53:07,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1264 states to 1264 states and 2070 transitions. [2023-12-16 18:53:07,295 INFO L78 Accepts]: Start accepts. Automaton has 1264 states and 2070 transitions. Word has length 563 [2023-12-16 18:53:07,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:53:07,295 INFO L495 AbstractCegarLoop]: Abstraction has 1264 states and 2070 transitions. [2023-12-16 18:53:07,296 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 103.2) internal successors, (516), 5 states have internal predecessors, (516), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-12-16 18:53:07,296 INFO L276 IsEmpty]: Start isEmpty. Operand 1264 states and 2070 transitions. [2023-12-16 18:53:07,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 565 [2023-12-16 18:53:07,300 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:53:07,300 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:53:07,300 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-12-16 18:53:07,300 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:53:07,300 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:53:07,301 INFO L85 PathProgramCache]: Analyzing trace with hash -646754423, now seen corresponding path program 1 times [2023-12-16 18:53:07,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 18:53:07,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762774221] [2023-12-16 18:53:07,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:53:07,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 18:53:07,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:08,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-12-16 18:53:08,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:08,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-16 18:53:08,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:08,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-12-16 18:53:08,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:08,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2023-12-16 18:53:08,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:08,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-12-16 18:53:08,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:08,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2023-12-16 18:53:08,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:08,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2023-12-16 18:53:08,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:08,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2023-12-16 18:53:08,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:08,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2023-12-16 18:53:08,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:08,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2023-12-16 18:53:08,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:08,443 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-12-16 18:53:08,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 18:53:08,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762774221] [2023-12-16 18:53:08,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762774221] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:53:08,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:53:08,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 18:53:08,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569016670] [2023-12-16 18:53:08,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:53:08,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 18:53:08,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 18:53:08,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 18:53:08,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 18:53:08,445 INFO L87 Difference]: Start difference. First operand 1264 states and 2070 transitions. Second operand has 4 states, 4 states have (on average 129.25) internal successors, (517), 4 states have internal predecessors, (517), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-12-16 18:53:08,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:53:08,564 INFO L93 Difference]: Finished difference Result 2332 states and 3814 transitions. [2023-12-16 18:53:08,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 18:53:08,564 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 129.25) internal successors, (517), 4 states have internal predecessors, (517), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 564 [2023-12-16 18:53:08,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:53:08,566 INFO L225 Difference]: With dead ends: 2332 [2023-12-16 18:53:08,566 INFO L226 Difference]: Without dead ends: 1264 [2023-12-16 18:53:08,567 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 18:53:08,568 INFO L413 NwaCegarLoop]: 2001 mSDtfsCounter, 1796 mSDsluCounter, 2003 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1796 SdHoareTripleChecker+Valid, 4004 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 18:53:08,568 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1796 Valid, 4004 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 18:53:08,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1264 states. [2023-12-16 18:53:08,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1264 to 1264. [2023-12-16 18:53:08,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1264 states, 1252 states have (on average 1.6365814696485623) internal successors, (2049), 1252 states have internal predecessors, (2049), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-12-16 18:53:08,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1264 states to 1264 states and 2069 transitions. [2023-12-16 18:53:08,582 INFO L78 Accepts]: Start accepts. Automaton has 1264 states and 2069 transitions. Word has length 564 [2023-12-16 18:53:08,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:53:08,583 INFO L495 AbstractCegarLoop]: Abstraction has 1264 states and 2069 transitions. [2023-12-16 18:53:08,583 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 129.25) internal successors, (517), 4 states have internal predecessors, (517), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-12-16 18:53:08,583 INFO L276 IsEmpty]: Start isEmpty. Operand 1264 states and 2069 transitions. [2023-12-16 18:53:08,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 565 [2023-12-16 18:53:08,586 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:53:08,586 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:53:08,586 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-12-16 18:53:08,586 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:53:08,587 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:53:08,587 INFO L85 PathProgramCache]: Analyzing trace with hash -80220789, now seen corresponding path program 1 times [2023-12-16 18:53:08,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 18:53:08,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584849072] [2023-12-16 18:53:08,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:53:08,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 18:53:08,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:09,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-12-16 18:53:09,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:09,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-16 18:53:09,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:09,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-12-16 18:53:09,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:09,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2023-12-16 18:53:09,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:09,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-12-16 18:53:09,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:09,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2023-12-16 18:53:09,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:09,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2023-12-16 18:53:09,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:09,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2023-12-16 18:53:09,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:09,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2023-12-16 18:53:09,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:09,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2023-12-16 18:53:09,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:09,589 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-12-16 18:53:09,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 18:53:09,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584849072] [2023-12-16 18:53:09,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584849072] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:53:09,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:53:09,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 18:53:09,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807336001] [2023-12-16 18:53:09,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:53:09,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 18:53:09,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 18:53:09,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 18:53:09,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 18:53:09,591 INFO L87 Difference]: Start difference. First operand 1264 states and 2069 transitions. Second operand has 4 states, 4 states have (on average 129.25) internal successors, (517), 4 states have internal predecessors, (517), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-12-16 18:53:09,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:53:09,706 INFO L93 Difference]: Finished difference Result 2332 states and 3812 transitions. [2023-12-16 18:53:09,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 18:53:09,707 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 129.25) internal successors, (517), 4 states have internal predecessors, (517), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 564 [2023-12-16 18:53:09,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:53:09,709 INFO L225 Difference]: With dead ends: 2332 [2023-12-16 18:53:09,709 INFO L226 Difference]: Without dead ends: 1264 [2023-12-16 18:53:09,710 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 18:53:09,710 INFO L413 NwaCegarLoop]: 2001 mSDtfsCounter, 1625 mSDsluCounter, 2003 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1625 SdHoareTripleChecker+Valid, 4004 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 18:53:09,711 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1625 Valid, 4004 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 18:53:09,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1264 states. [2023-12-16 18:53:09,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1264 to 1264. [2023-12-16 18:53:09,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1264 states, 1252 states have (on average 1.6357827476038338) internal successors, (2048), 1252 states have internal predecessors, (2048), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-12-16 18:53:09,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1264 states to 1264 states and 2068 transitions. [2023-12-16 18:53:09,723 INFO L78 Accepts]: Start accepts. Automaton has 1264 states and 2068 transitions. Word has length 564 [2023-12-16 18:53:09,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:53:09,724 INFO L495 AbstractCegarLoop]: Abstraction has 1264 states and 2068 transitions. [2023-12-16 18:53:09,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 129.25) internal successors, (517), 4 states have internal predecessors, (517), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-12-16 18:53:09,724 INFO L276 IsEmpty]: Start isEmpty. Operand 1264 states and 2068 transitions. [2023-12-16 18:53:09,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 565 [2023-12-16 18:53:09,727 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:53:09,727 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:53:09,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-12-16 18:53:09,727 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:53:09,728 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:53:09,728 INFO L85 PathProgramCache]: Analyzing trace with hash 1271164429, now seen corresponding path program 1 times [2023-12-16 18:53:09,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 18:53:09,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037369430] [2023-12-16 18:53:09,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:53:09,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 18:53:10,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:11,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-12-16 18:53:11,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:11,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-16 18:53:11,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:11,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-12-16 18:53:11,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:11,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2023-12-16 18:53:11,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:11,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-12-16 18:53:11,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:11,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2023-12-16 18:53:11,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:11,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2023-12-16 18:53:11,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:11,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2023-12-16 18:53:11,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:11,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2023-12-16 18:53:11,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:11,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2023-12-16 18:53:11,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:11,452 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-12-16 18:53:11,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 18:53:11,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037369430] [2023-12-16 18:53:11,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037369430] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:53:11,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:53:11,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 18:53:11,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517577772] [2023-12-16 18:53:11,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:53:11,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 18:53:11,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 18:53:11,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 18:53:11,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 18:53:11,463 INFO L87 Difference]: Start difference. First operand 1264 states and 2068 transitions. Second operand has 6 states, 6 states have (on average 86.16666666666667) internal successors, (517), 6 states have internal predecessors, (517), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-16 18:53:12,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:53:12,136 INFO L93 Difference]: Finished difference Result 3432 states and 5606 transitions. [2023-12-16 18:53:12,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 18:53:12,137 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 86.16666666666667) internal successors, (517), 6 states have internal predecessors, (517), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 564 [2023-12-16 18:53:12,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:53:12,148 INFO L225 Difference]: With dead ends: 3432 [2023-12-16 18:53:12,149 INFO L226 Difference]: Without dead ends: 2347 [2023-12-16 18:53:12,152 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-12-16 18:53:12,164 INFO L413 NwaCegarLoop]: 2056 mSDtfsCounter, 1734 mSDsluCounter, 7795 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1741 SdHoareTripleChecker+Valid, 9851 SdHoareTripleChecker+Invalid, 476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 18:53:12,164 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1741 Valid, 9851 Invalid, 476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 474 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 18:53:12,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2347 states. [2023-12-16 18:53:12,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2347 to 1333. [2023-12-16 18:53:12,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1333 states, 1318 states have (on average 1.6342943854324734) internal successors, (2154), 1318 states have internal predecessors, (2154), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-12-16 18:53:12,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1333 states to 1333 states and 2180 transitions. [2023-12-16 18:53:12,204 INFO L78 Accepts]: Start accepts. Automaton has 1333 states and 2180 transitions. Word has length 564 [2023-12-16 18:53:12,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:53:12,221 INFO L495 AbstractCegarLoop]: Abstraction has 1333 states and 2180 transitions. [2023-12-16 18:53:12,221 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 86.16666666666667) internal successors, (517), 6 states have internal predecessors, (517), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-16 18:53:12,221 INFO L276 IsEmpty]: Start isEmpty. Operand 1333 states and 2180 transitions. [2023-12-16 18:53:12,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 566 [2023-12-16 18:53:12,225 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:53:12,225 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:53:12,225 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-12-16 18:53:12,225 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:53:12,225 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:53:12,225 INFO L85 PathProgramCache]: Analyzing trace with hash 1328333537, now seen corresponding path program 1 times [2023-12-16 18:53:12,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 18:53:12,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762099306] [2023-12-16 18:53:12,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:53:12,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 18:53:13,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:13,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-12-16 18:53:13,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:13,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-16 18:53:13,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:13,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-12-16 18:53:13,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:13,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-12-16 18:53:13,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:13,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2023-12-16 18:53:13,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:13,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-12-16 18:53:13,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:13,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2023-12-16 18:53:13,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:13,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-12-16 18:53:13,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:13,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2023-12-16 18:53:13,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:14,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2023-12-16 18:53:14,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:14,002 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-12-16 18:53:14,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 18:53:14,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762099306] [2023-12-16 18:53:14,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762099306] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:53:14,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:53:14,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 18:53:14,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804586265] [2023-12-16 18:53:14,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:53:14,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 18:53:14,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 18:53:14,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 18:53:14,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-16 18:53:14,004 INFO L87 Difference]: Start difference. First operand 1333 states and 2180 transitions. Second operand has 5 states, 5 states have (on average 103.6) internal successors, (518), 5 states have internal predecessors, (518), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-12-16 18:53:14,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:53:14,192 INFO L93 Difference]: Finished difference Result 2401 states and 3922 transitions. [2023-12-16 18:53:14,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 18:53:14,193 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 103.6) internal successors, (518), 5 states have internal predecessors, (518), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 565 [2023-12-16 18:53:14,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:53:14,195 INFO L225 Difference]: With dead ends: 2401 [2023-12-16 18:53:14,195 INFO L226 Difference]: Without dead ends: 1333 [2023-12-16 18:53:14,196 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-16 18:53:14,196 INFO L413 NwaCegarLoop]: 1961 mSDtfsCounter, 1789 mSDsluCounter, 1963 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1789 SdHoareTripleChecker+Valid, 3924 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 18:53:14,196 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1789 Valid, 3924 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 18:53:14,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1333 states. [2023-12-16 18:53:14,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1333 to 1333. [2023-12-16 18:53:14,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1333 states, 1318 states have (on average 1.6335356600910471) internal successors, (2153), 1318 states have internal predecessors, (2153), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-12-16 18:53:14,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1333 states to 1333 states and 2179 transitions. [2023-12-16 18:53:14,212 INFO L78 Accepts]: Start accepts. Automaton has 1333 states and 2179 transitions. Word has length 565 [2023-12-16 18:53:14,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:53:14,213 INFO L495 AbstractCegarLoop]: Abstraction has 1333 states and 2179 transitions. [2023-12-16 18:53:14,213 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 103.6) internal successors, (518), 5 states have internal predecessors, (518), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-12-16 18:53:14,213 INFO L276 IsEmpty]: Start isEmpty. Operand 1333 states and 2179 transitions. [2023-12-16 18:53:14,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 566 [2023-12-16 18:53:14,216 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:53:14,216 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:53:14,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-12-16 18:53:14,216 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:53:14,217 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:53:14,217 INFO L85 PathProgramCache]: Analyzing trace with hash -801600925, now seen corresponding path program 1 times [2023-12-16 18:53:14,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 18:53:14,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547660218] [2023-12-16 18:53:14,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:53:14,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 18:53:14,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:15,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-12-16 18:53:15,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:15,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-16 18:53:15,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:15,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-12-16 18:53:15,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:15,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-12-16 18:53:15,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:15,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2023-12-16 18:53:15,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:15,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-12-16 18:53:15,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:15,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2023-12-16 18:53:15,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:15,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-12-16 18:53:15,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:15,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2023-12-16 18:53:15,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:15,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2023-12-16 18:53:15,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:15,378 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-12-16 18:53:15,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 18:53:15,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547660218] [2023-12-16 18:53:15,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547660218] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:53:15,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:53:15,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 18:53:15,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065381985] [2023-12-16 18:53:15,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:53:15,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 18:53:15,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 18:53:15,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 18:53:15,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-16 18:53:15,380 INFO L87 Difference]: Start difference. First operand 1333 states and 2179 transitions. Second operand has 5 states, 5 states have (on average 103.6) internal successors, (518), 5 states have internal predecessors, (518), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-12-16 18:53:15,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:53:15,598 INFO L93 Difference]: Finished difference Result 2401 states and 3920 transitions. [2023-12-16 18:53:15,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 18:53:15,599 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 103.6) internal successors, (518), 5 states have internal predecessors, (518), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 565 [2023-12-16 18:53:15,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:53:15,601 INFO L225 Difference]: With dead ends: 2401 [2023-12-16 18:53:15,601 INFO L226 Difference]: Without dead ends: 1333 [2023-12-16 18:53:15,602 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-16 18:53:15,602 INFO L413 NwaCegarLoop]: 1961 mSDtfsCounter, 1785 mSDsluCounter, 1976 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1785 SdHoareTripleChecker+Valid, 3937 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 18:53:15,603 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1785 Valid, 3937 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 18:53:15,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1333 states. [2023-12-16 18:53:15,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1333 to 1333. [2023-12-16 18:53:15,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1333 states, 1318 states have (on average 1.6327769347496206) internal successors, (2152), 1318 states have internal predecessors, (2152), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-12-16 18:53:15,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1333 states to 1333 states and 2178 transitions. [2023-12-16 18:53:15,618 INFO L78 Accepts]: Start accepts. Automaton has 1333 states and 2178 transitions. Word has length 565 [2023-12-16 18:53:15,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:53:15,619 INFO L495 AbstractCegarLoop]: Abstraction has 1333 states and 2178 transitions. [2023-12-16 18:53:15,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 103.6) internal successors, (518), 5 states have internal predecessors, (518), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-12-16 18:53:15,619 INFO L276 IsEmpty]: Start isEmpty. Operand 1333 states and 2178 transitions. [2023-12-16 18:53:15,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 566 [2023-12-16 18:53:15,622 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:53:15,622 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:53:15,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-12-16 18:53:15,622 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:53:15,623 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:53:15,623 INFO L85 PathProgramCache]: Analyzing trace with hash -1935424991, now seen corresponding path program 1 times [2023-12-16 18:53:15,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 18:53:15,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379285811] [2023-12-16 18:53:15,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:53:15,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 18:53:16,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:16,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-12-16 18:53:16,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:16,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-16 18:53:16,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:16,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-12-16 18:53:16,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:16,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-12-16 18:53:16,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:16,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2023-12-16 18:53:16,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:16,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-12-16 18:53:16,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:16,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2023-12-16 18:53:16,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:16,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-12-16 18:53:16,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:16,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2023-12-16 18:53:16,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:16,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2023-12-16 18:53:16,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:16,853 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-12-16 18:53:16,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 18:53:16,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379285811] [2023-12-16 18:53:16,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379285811] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:53:16,854 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:53:16,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 18:53:16,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515637199] [2023-12-16 18:53:16,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:53:16,855 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 18:53:16,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 18:53:16,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 18:53:16,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-16 18:53:16,856 INFO L87 Difference]: Start difference. First operand 1333 states and 2178 transitions. Second operand has 5 states, 5 states have (on average 103.6) internal successors, (518), 5 states have internal predecessors, (518), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-12-16 18:53:17,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:53:17,049 INFO L93 Difference]: Finished difference Result 2401 states and 3918 transitions. [2023-12-16 18:53:17,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 18:53:17,050 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 103.6) internal successors, (518), 5 states have internal predecessors, (518), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 565 [2023-12-16 18:53:17,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:53:17,052 INFO L225 Difference]: With dead ends: 2401 [2023-12-16 18:53:17,052 INFO L226 Difference]: Without dead ends: 1333 [2023-12-16 18:53:17,054 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-16 18:53:17,054 INFO L413 NwaCegarLoop]: 1961 mSDtfsCounter, 3562 mSDsluCounter, 1963 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3562 SdHoareTripleChecker+Valid, 3924 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 18:53:17,054 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3562 Valid, 3924 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 18:53:17,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1333 states. [2023-12-16 18:53:17,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1333 to 1333. [2023-12-16 18:53:17,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1333 states, 1318 states have (on average 1.6320182094081943) internal successors, (2151), 1318 states have internal predecessors, (2151), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-12-16 18:53:17,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1333 states to 1333 states and 2177 transitions. [2023-12-16 18:53:17,072 INFO L78 Accepts]: Start accepts. Automaton has 1333 states and 2177 transitions. Word has length 565 [2023-12-16 18:53:17,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:53:17,072 INFO L495 AbstractCegarLoop]: Abstraction has 1333 states and 2177 transitions. [2023-12-16 18:53:17,073 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 103.6) internal successors, (518), 5 states have internal predecessors, (518), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-12-16 18:53:17,073 INFO L276 IsEmpty]: Start isEmpty. Operand 1333 states and 2177 transitions. [2023-12-16 18:53:17,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 566 [2023-12-16 18:53:17,077 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:53:17,077 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:53:17,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-12-16 18:53:17,077 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:53:17,077 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:53:17,078 INFO L85 PathProgramCache]: Analyzing trace with hash -1779182813, now seen corresponding path program 1 times [2023-12-16 18:53:17,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 18:53:17,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892899194] [2023-12-16 18:53:17,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:53:17,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 18:53:17,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:18,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-12-16 18:53:18,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:18,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-16 18:53:18,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:18,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-12-16 18:53:18,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:18,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-12-16 18:53:18,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:18,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2023-12-16 18:53:18,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:18,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-12-16 18:53:18,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:18,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2023-12-16 18:53:18,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:18,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-12-16 18:53:18,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:18,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2023-12-16 18:53:18,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:18,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2023-12-16 18:53:18,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:18,175 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-12-16 18:53:18,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 18:53:18,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892899194] [2023-12-16 18:53:18,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892899194] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:53:18,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:53:18,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 18:53:18,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293408576] [2023-12-16 18:53:18,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:53:18,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 18:53:18,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 18:53:18,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 18:53:18,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-16 18:53:18,177 INFO L87 Difference]: Start difference. First operand 1333 states and 2177 transitions. Second operand has 5 states, 5 states have (on average 103.6) internal successors, (518), 5 states have internal predecessors, (518), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-12-16 18:53:18,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:53:18,373 INFO L93 Difference]: Finished difference Result 2401 states and 3916 transitions. [2023-12-16 18:53:18,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 18:53:18,373 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 103.6) internal successors, (518), 5 states have internal predecessors, (518), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 565 [2023-12-16 18:53:18,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:53:18,375 INFO L225 Difference]: With dead ends: 2401 [2023-12-16 18:53:18,375 INFO L226 Difference]: Without dead ends: 1333 [2023-12-16 18:53:18,377 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-16 18:53:18,378 INFO L413 NwaCegarLoop]: 1961 mSDtfsCounter, 1783 mSDsluCounter, 1976 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1783 SdHoareTripleChecker+Valid, 3937 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 18:53:18,378 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1783 Valid, 3937 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 18:53:18,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1333 states. [2023-12-16 18:53:18,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1333 to 1333. [2023-12-16 18:53:18,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1333 states, 1318 states have (on average 1.6312594840667678) internal successors, (2150), 1318 states have internal predecessors, (2150), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-12-16 18:53:18,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1333 states to 1333 states and 2176 transitions. [2023-12-16 18:53:18,399 INFO L78 Accepts]: Start accepts. Automaton has 1333 states and 2176 transitions. Word has length 565 [2023-12-16 18:53:18,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:53:18,400 INFO L495 AbstractCegarLoop]: Abstraction has 1333 states and 2176 transitions. [2023-12-16 18:53:18,400 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 103.6) internal successors, (518), 5 states have internal predecessors, (518), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-12-16 18:53:18,400 INFO L276 IsEmpty]: Start isEmpty. Operand 1333 states and 2176 transitions. [2023-12-16 18:53:18,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 566 [2023-12-16 18:53:18,403 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:53:18,403 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:53:18,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-12-16 18:53:18,403 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:53:18,404 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:53:18,404 INFO L85 PathProgramCache]: Analyzing trace with hash -1130590043, now seen corresponding path program 1 times [2023-12-16 18:53:18,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 18:53:18,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374434742] [2023-12-16 18:53:18,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:53:18,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 18:53:18,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:19,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-12-16 18:53:19,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:19,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-16 18:53:19,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:19,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-12-16 18:53:19,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:19,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-12-16 18:53:19,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:19,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2023-12-16 18:53:19,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:19,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-12-16 18:53:19,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:19,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2023-12-16 18:53:19,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:19,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-12-16 18:53:19,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:19,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2023-12-16 18:53:19,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:19,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2023-12-16 18:53:19,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:19,508 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-12-16 18:53:19,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 18:53:19,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374434742] [2023-12-16 18:53:19,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374434742] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:53:19,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:53:19,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 18:53:19,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118022967] [2023-12-16 18:53:19,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:53:19,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 18:53:19,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 18:53:19,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 18:53:19,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-16 18:53:19,510 INFO L87 Difference]: Start difference. First operand 1333 states and 2176 transitions. Second operand has 5 states, 5 states have (on average 103.6) internal successors, (518), 5 states have internal predecessors, (518), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-12-16 18:53:19,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:53:19,684 INFO L93 Difference]: Finished difference Result 2401 states and 3914 transitions. [2023-12-16 18:53:19,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 18:53:19,686 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 103.6) internal successors, (518), 5 states have internal predecessors, (518), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 565 [2023-12-16 18:53:19,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:53:19,688 INFO L225 Difference]: With dead ends: 2401 [2023-12-16 18:53:19,688 INFO L226 Difference]: Without dead ends: 1333 [2023-12-16 18:53:19,689 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-16 18:53:19,689 INFO L413 NwaCegarLoop]: 1961 mSDtfsCounter, 3473 mSDsluCounter, 1963 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3473 SdHoareTripleChecker+Valid, 3924 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 18:53:19,689 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3473 Valid, 3924 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 18:53:19,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1333 states. [2023-12-16 18:53:19,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1333 to 1333. [2023-12-16 18:53:19,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1333 states, 1318 states have (on average 1.6305007587253415) internal successors, (2149), 1318 states have internal predecessors, (2149), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-12-16 18:53:19,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1333 states to 1333 states and 2175 transitions. [2023-12-16 18:53:19,707 INFO L78 Accepts]: Start accepts. Automaton has 1333 states and 2175 transitions. Word has length 565 [2023-12-16 18:53:19,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:53:19,707 INFO L495 AbstractCegarLoop]: Abstraction has 1333 states and 2175 transitions. [2023-12-16 18:53:19,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 103.6) internal successors, (518), 5 states have internal predecessors, (518), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-12-16 18:53:19,708 INFO L276 IsEmpty]: Start isEmpty. Operand 1333 states and 2175 transitions. [2023-12-16 18:53:19,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 566 [2023-12-16 18:53:19,713 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:53:19,713 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:53:19,713 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-12-16 18:53:19,713 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:53:19,713 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:53:19,713 INFO L85 PathProgramCache]: Analyzing trace with hash -1820421533, now seen corresponding path program 1 times [2023-12-16 18:53:19,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 18:53:19,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396290189] [2023-12-16 18:53:19,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:53:19,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 18:53:20,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:20,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-12-16 18:53:20,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:20,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-16 18:53:20,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:20,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-12-16 18:53:20,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:20,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-12-16 18:53:20,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:20,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2023-12-16 18:53:20,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:20,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-12-16 18:53:20,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:20,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2023-12-16 18:53:20,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:20,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-12-16 18:53:20,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:20,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2023-12-16 18:53:20,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:20,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2023-12-16 18:53:20,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:20,842 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-12-16 18:53:20,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 18:53:20,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396290189] [2023-12-16 18:53:20,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [396290189] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:53:20,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:53:20,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 18:53:20,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225498000] [2023-12-16 18:53:20,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:53:20,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 18:53:20,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 18:53:20,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 18:53:20,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-16 18:53:20,844 INFO L87 Difference]: Start difference. First operand 1333 states and 2175 transitions. Second operand has 5 states, 5 states have (on average 103.6) internal successors, (518), 5 states have internal predecessors, (518), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-12-16 18:53:21,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:53:21,077 INFO L93 Difference]: Finished difference Result 2401 states and 3912 transitions. [2023-12-16 18:53:21,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 18:53:21,077 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 103.6) internal successors, (518), 5 states have internal predecessors, (518), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 565 [2023-12-16 18:53:21,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:53:21,080 INFO L225 Difference]: With dead ends: 2401 [2023-12-16 18:53:21,080 INFO L226 Difference]: Without dead ends: 1333 [2023-12-16 18:53:21,081 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-16 18:53:21,083 INFO L413 NwaCegarLoop]: 1961 mSDtfsCounter, 1781 mSDsluCounter, 1976 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1781 SdHoareTripleChecker+Valid, 3937 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 18:53:21,083 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1781 Valid, 3937 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 18:53:21,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1333 states. [2023-12-16 18:53:21,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1333 to 1333. [2023-12-16 18:53:21,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1333 states, 1318 states have (on average 1.629742033383915) internal successors, (2148), 1318 states have internal predecessors, (2148), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-12-16 18:53:21,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1333 states to 1333 states and 2174 transitions. [2023-12-16 18:53:21,101 INFO L78 Accepts]: Start accepts. Automaton has 1333 states and 2174 transitions. Word has length 565 [2023-12-16 18:53:21,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:53:21,102 INFO L495 AbstractCegarLoop]: Abstraction has 1333 states and 2174 transitions. [2023-12-16 18:53:21,102 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 103.6) internal successors, (518), 5 states have internal predecessors, (518), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-12-16 18:53:21,102 INFO L276 IsEmpty]: Start isEmpty. Operand 1333 states and 2174 transitions. [2023-12-16 18:53:21,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 566 [2023-12-16 18:53:21,105 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:53:21,105 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:53:21,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-12-16 18:53:21,106 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:53:21,106 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:53:21,106 INFO L85 PathProgramCache]: Analyzing trace with hash 1703812197, now seen corresponding path program 1 times [2023-12-16 18:53:21,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 18:53:21,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145060642] [2023-12-16 18:53:21,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:53:21,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 18:53:21,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:22,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-12-16 18:53:22,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:22,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-16 18:53:22,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:22,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-12-16 18:53:22,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:22,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-12-16 18:53:22,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:22,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2023-12-16 18:53:22,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:22,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-12-16 18:53:22,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:22,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2023-12-16 18:53:22,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:22,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-12-16 18:53:22,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:22,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2023-12-16 18:53:22,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:22,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2023-12-16 18:53:22,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:22,294 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-12-16 18:53:22,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 18:53:22,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145060642] [2023-12-16 18:53:22,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1145060642] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:53:22,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:53:22,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 18:53:22,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798773773] [2023-12-16 18:53:22,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:53:22,295 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 18:53:22,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 18:53:22,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 18:53:22,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-16 18:53:22,296 INFO L87 Difference]: Start difference. First operand 1333 states and 2174 transitions. Second operand has 5 states, 5 states have (on average 103.6) internal successors, (518), 5 states have internal predecessors, (518), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-12-16 18:53:22,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:53:22,495 INFO L93 Difference]: Finished difference Result 2401 states and 3910 transitions. [2023-12-16 18:53:22,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 18:53:22,495 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 103.6) internal successors, (518), 5 states have internal predecessors, (518), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 565 [2023-12-16 18:53:22,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:53:22,512 INFO L225 Difference]: With dead ends: 2401 [2023-12-16 18:53:22,512 INFO L226 Difference]: Without dead ends: 1333 [2023-12-16 18:53:22,513 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-16 18:53:22,516 INFO L413 NwaCegarLoop]: 1961 mSDtfsCounter, 1780 mSDsluCounter, 1976 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1780 SdHoareTripleChecker+Valid, 3937 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 18:53:22,516 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1780 Valid, 3937 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 18:53:22,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1333 states. [2023-12-16 18:53:22,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1333 to 1333. [2023-12-16 18:53:22,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1333 states, 1318 states have (on average 1.6289833080424887) internal successors, (2147), 1318 states have internal predecessors, (2147), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-12-16 18:53:22,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1333 states to 1333 states and 2173 transitions. [2023-12-16 18:53:22,564 INFO L78 Accepts]: Start accepts. Automaton has 1333 states and 2173 transitions. Word has length 565 [2023-12-16 18:53:22,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:53:22,565 INFO L495 AbstractCegarLoop]: Abstraction has 1333 states and 2173 transitions. [2023-12-16 18:53:22,565 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 103.6) internal successors, (518), 5 states have internal predecessors, (518), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-12-16 18:53:22,565 INFO L276 IsEmpty]: Start isEmpty. Operand 1333 states and 2173 transitions. [2023-12-16 18:53:22,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 566 [2023-12-16 18:53:22,568 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:53:22,568 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:53:22,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2023-12-16 18:53:22,569 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:53:22,569 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:53:22,569 INFO L85 PathProgramCache]: Analyzing trace with hash -1266298905, now seen corresponding path program 1 times [2023-12-16 18:53:22,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 18:53:22,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81672113] [2023-12-16 18:53:22,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:53:22,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 18:53:23,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:24,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-12-16 18:53:24,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:24,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-16 18:53:24,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:24,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-12-16 18:53:24,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:24,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-12-16 18:53:24,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:24,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2023-12-16 18:53:24,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:24,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-12-16 18:53:24,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:24,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2023-12-16 18:53:24,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:24,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-12-16 18:53:24,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:24,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2023-12-16 18:53:24,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:24,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2023-12-16 18:53:24,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:53:24,840 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-12-16 18:53:24,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 18:53:24,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81672113] [2023-12-16 18:53:24,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [81672113] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:53:24,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:53:24,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 18:53:24,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853023411] [2023-12-16 18:53:24,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:53:24,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 18:53:24,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 18:53:24,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 18:53:24,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 18:53:24,843 INFO L87 Difference]: Start difference. First operand 1333 states and 2173 transitions. Second operand has 5 states, 5 states have (on average 103.6) internal successors, (518), 5 states have internal predecessors, (518), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Received shutdown request... [2023-12-16 18:53:25,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 18:53:25,262 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 18:53:25,263 INFO L413 NwaCegarLoop]: 1296 mSDtfsCounter, 1272 mSDsluCounter, 2567 mSDsCounter, 0 mSdLazyCounter, 762 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1275 SdHoareTripleChecker+Valid, 3863 SdHoareTripleChecker+Invalid, 763 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 762 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 18:53:25,264 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1275 Valid, 3863 Invalid, 763 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 762 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 18:53:25,265 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 18:53:25,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2023-12-16 18:53:25,265 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (1333states) and FLOYD_HOARE automaton (currently 5 states, 5 states before enhancement),while ReachableStatesComputation was computing reachable states (1380 states constructed, input type IntersectNwa). [2023-12-16 18:53:25,270 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:53:25,278 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 18:53:25,279 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 06:53:25 BoogieIcfgContainer [2023-12-16 18:53:25,279 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 18:53:25,279 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 18:53:25,280 INFO L158 Benchmark]: Toolchain (without parser) took 50863.78ms. Allocated memory was 247.5MB in the beginning and 2.3GB in the end (delta: 2.0GB). Free memory was 191.2MB in the beginning and 900.2MB in the end (delta: -708.9MB). Peak memory consumption was 1.3GB. Max. memory is 8.0GB. [2023-12-16 18:53:25,280 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 181.4MB. Free memory was 131.8MB in the beginning and 131.7MB in the end (delta: 119.9kB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 18:53:25,280 INFO L158 Benchmark]: CACSL2BoogieTranslator took 733.59ms. Allocated memory is still 247.5MB. Free memory was 190.9MB in the beginning and 153.0MB in the end (delta: 37.9MB). Peak memory consumption was 52.9MB. Max. memory is 8.0GB. [2023-12-16 18:53:25,280 INFO L158 Benchmark]: Boogie Procedure Inliner took 614.24ms. Allocated memory was 247.5MB in the beginning and 432.0MB in the end (delta: 184.5MB). Free memory was 153.0MB in the beginning and 295.0MB in the end (delta: -142.0MB). Peak memory consumption was 130.7MB. Max. memory is 8.0GB. [2023-12-16 18:53:25,280 INFO L158 Benchmark]: Boogie Preprocessor took 738.28ms. Allocated memory is still 432.0MB. Free memory was 295.0MB in the beginning and 244.1MB in the end (delta: 50.9MB). Peak memory consumption was 55.1MB. Max. memory is 8.0GB. [2023-12-16 18:53:25,280 INFO L158 Benchmark]: RCFGBuilder took 3448.39ms. Allocated memory was 432.0MB in the beginning and 864.0MB in the end (delta: 432.0MB). Free memory was 244.1MB in the beginning and 583.8MB in the end (delta: -339.7MB). Peak memory consumption was 244.3MB. Max. memory is 8.0GB. [2023-12-16 18:53:25,281 INFO L158 Benchmark]: TraceAbstraction took 45324.42ms. Allocated memory was 864.0MB in the beginning and 2.3GB in the end (delta: 1.4GB). Free memory was 583.3MB in the beginning and 900.2MB in the end (delta: -316.8MB). Peak memory consumption was 1.1GB. Max. memory is 8.0GB. [2023-12-16 18:53:25,281 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 181.4MB. Free memory was 131.8MB in the beginning and 131.7MB in the end (delta: 119.9kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 733.59ms. Allocated memory is still 247.5MB. Free memory was 190.9MB in the beginning and 153.0MB in the end (delta: 37.9MB). Peak memory consumption was 52.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 614.24ms. Allocated memory was 247.5MB in the beginning and 432.0MB in the end (delta: 184.5MB). Free memory was 153.0MB in the beginning and 295.0MB in the end (delta: -142.0MB). Peak memory consumption was 130.7MB. Max. memory is 8.0GB. * Boogie Preprocessor took 738.28ms. Allocated memory is still 432.0MB. Free memory was 295.0MB in the beginning and 244.1MB in the end (delta: 50.9MB). Peak memory consumption was 55.1MB. Max. memory is 8.0GB. * RCFGBuilder took 3448.39ms. Allocated memory was 432.0MB in the beginning and 864.0MB in the end (delta: 432.0MB). Free memory was 244.1MB in the beginning and 583.8MB in the end (delta: -339.7MB). Peak memory consumption was 244.3MB. Max. memory is 8.0GB. * TraceAbstraction took 45324.42ms. Allocated memory was 864.0MB in the beginning and 2.3GB in the end (delta: 1.4GB). Free memory was 583.3MB in the beginning and 900.2MB in the end (delta: -316.8MB). Peak memory consumption was 1.1GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 21]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 21). Cancelled while NwaCegarLoop was constructing difference of abstraction (1333states) and FLOYD_HOARE automaton (currently 5 states, 5 states before enhancement),while ReachableStatesComputation was computing reachable states (1380 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 1262 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 45.3s, OverallIterations: 36, TraceHistogramMax: 10, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 9.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 81484 SdHoareTripleChecker+Valid, 7.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 81316 mSDsluCounter, 157629 SdHoareTripleChecker+Invalid, 6.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 86279 mSDsCounter, 137 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9863 IncrementalHoareTripleChecker+Invalid, 10000 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 137 mSolverCounterUnsat, 71350 mSDtfsCounter, 9863 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 928 GetRequests, 788 SyntacticMatches, 0 SemanticMatches, 140 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1333occurred in iteration=28, InterpolantAutomatonStates: 147, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 35 MinimizatonAttempts, 1015 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.8s SsaConstructionTime, 10.4s SatisfiabilityAnalysisTime, 22.3s InterpolantComputationTime, 19988 NumberOfCodeBlocks, 19988 NumberOfCodeBlocksAsserted, 36 NumberOfCheckSat, 19952 ConstructedInterpolants, 0 QuantifiedInterpolants, 99915 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 36 InterpolantComputations, 36 PerfectInterpolantSequences, 6480/6480 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown