/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/bitvector/s3_srvr_1a.BV.c.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-15 17:28:54,213 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-15 17:28:54,305 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-15 17:28:54,312 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-15 17:28:54,312 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-15 17:28:54,340 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-15 17:28:54,340 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-15 17:28:54,341 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-15 17:28:54,341 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-15 17:28:54,345 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-15 17:28:54,345 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-15 17:28:54,346 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-15 17:28:54,346 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-15 17:28:54,347 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-15 17:28:54,347 INFO L153 SettingsManager]: * Use SBE=true [2023-12-15 17:28:54,348 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-15 17:28:54,348 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-15 17:28:54,348 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-15 17:28:54,349 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-15 17:28:54,349 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-15 17:28:54,350 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-15 17:28:54,350 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-15 17:28:54,350 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-15 17:28:54,350 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-15 17:28:54,350 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-15 17:28:54,351 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-15 17:28:54,351 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-15 17:28:54,351 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-15 17:28:54,352 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-15 17:28:54,352 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-15 17:28:54,353 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-15 17:28:54,353 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-15 17:28:54,353 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 17:28:54,353 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-15 17:28:54,353 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-15 17:28:54,353 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-15 17:28:54,353 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-15 17:28:54,354 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-15 17:28:54,354 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-15 17:28:54,354 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-15 17:28:54,354 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-15 17:28:54,354 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-15 17:28:54,354 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-15 17:28:54,355 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-15 17:28:54,603 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-15 17:28:54,624 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-15 17:28:54,626 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-15 17:28:54,627 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-15 17:28:54,627 INFO L274 PluginConnector]: CDTParser initialized [2023-12-15 17:28:54,628 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/bitvector/s3_srvr_1a.BV.c.cil.c [2023-12-15 17:28:55,790 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-15 17:28:55,977 INFO L384 CDTParser]: Found 1 translation units. [2023-12-15 17:28:55,977 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/bitvector/s3_srvr_1a.BV.c.cil.c [2023-12-15 17:28:55,988 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe2cfa0e9/4c0cbf173a5d410a9c55d5a45779257a/FLAGefcedd5c2 [2023-12-15 17:28:56,013 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe2cfa0e9/4c0cbf173a5d410a9c55d5a45779257a [2023-12-15 17:28:56,016 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-15 17:28:56,017 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-15 17:28:56,018 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-15 17:28:56,018 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-15 17:28:56,025 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-15 17:28:56,026 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 05:28:56" (1/1) ... [2023-12-15 17:28:56,027 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f6220de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:28:56, skipping insertion in model container [2023-12-15 17:28:56,027 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 05:28:56" (1/1) ... [2023-12-15 17:28:56,072 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-15 17:28:56,269 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/bitvector/s3_srvr_1a.BV.c.cil.c[44949,44962] [2023-12-15 17:28:56,277 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 17:28:56,288 INFO L202 MainTranslator]: Completed pre-run [2023-12-15 17:28:56,331 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/bitvector/s3_srvr_1a.BV.c.cil.c[44949,44962] [2023-12-15 17:28:56,335 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 17:28:56,348 INFO L206 MainTranslator]: Completed translation [2023-12-15 17:28:56,356 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:28:56 WrapperNode [2023-12-15 17:28:56,356 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-15 17:28:56,361 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-15 17:28:56,361 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-15 17:28:56,361 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-15 17:28:56,368 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:28:56" (1/1) ... [2023-12-15 17:28:56,377 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:28:56" (1/1) ... [2023-12-15 17:28:56,425 INFO L138 Inliner]: procedures = 16, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 646 [2023-12-15 17:28:56,425 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-15 17:28:56,426 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-15 17:28:56,426 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-15 17:28:56,426 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-15 17:28:56,436 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:28:56" (1/1) ... [2023-12-15 17:28:56,436 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:28:56" (1/1) ... [2023-12-15 17:28:56,440 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:28:56" (1/1) ... [2023-12-15 17:28:56,472 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]. [2023-12-15 17:28:56,472 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:28:56" (1/1) ... [2023-12-15 17:28:56,472 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:28:56" (1/1) ... [2023-12-15 17:28:56,493 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:28:56" (1/1) ... [2023-12-15 17:28:56,500 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:28:56" (1/1) ... [2023-12-15 17:28:56,514 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:28:56" (1/1) ... [2023-12-15 17:28:56,516 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:28:56" (1/1) ... [2023-12-15 17:28:56,519 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-15 17:28:56,520 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-15 17:28:56,520 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-15 17:28:56,520 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-15 17:28:56,521 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:28:56" (1/1) ... [2023-12-15 17:28:56,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 17:28:56,546 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 17:28:56,557 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) [2023-12-15 17:28:56,559 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 [2023-12-15 17:28:56,578 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-15 17:28:56,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-15 17:28:56,578 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-15 17:28:56,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-15 17:28:56,652 INFO L241 CfgBuilder]: Building ICFG [2023-12-15 17:28:56,654 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-15 17:28:56,668 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-12-15 17:28:57,206 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##103: assume !false; [2023-12-15 17:28:57,206 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##102: assume false; [2023-12-15 17:28:57,207 INFO L282 CfgBuilder]: Performing block encoding [2023-12-15 17:28:57,262 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-15 17:28:57,262 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-15 17:28:57,263 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 05:28:57 BoogieIcfgContainer [2023-12-15 17:28:57,263 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-15 17:28:57,264 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-15 17:28:57,265 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-15 17:28:57,267 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-15 17:28:57,267 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 05:28:56" (1/3) ... [2023-12-15 17:28:57,268 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2caab6a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 05:28:57, skipping insertion in model container [2023-12-15 17:28:57,268 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:28:56" (2/3) ... [2023-12-15 17:28:57,268 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2caab6a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 05:28:57, skipping insertion in model container [2023-12-15 17:28:57,268 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 05:28:57" (3/3) ... [2023-12-15 17:28:57,269 INFO L112 eAbstractionObserver]: Analyzing ICFG s3_srvr_1a.BV.c.cil.c [2023-12-15 17:28:57,284 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-15 17:28:57,284 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-15 17:28:57,322 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-15 17:28:57,327 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;@5d4a70d7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-15 17:28:57,327 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-15 17:28:57,333 INFO L276 IsEmpty]: Start isEmpty. Operand has 150 states, 148 states have (on average 1.8175675675675675) internal successors, (269), 149 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 17:28:57,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-12-15 17:28:57,341 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:28:57,342 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 17:28:57,342 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:28:57,347 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:28:57,347 INFO L85 PathProgramCache]: Analyzing trace with hash -1415729344, now seen corresponding path program 1 times [2023-12-15 17:28:57,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:28:57,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50425529] [2023-12-15 17:28:57,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:28:57,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:28:57,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:28:57,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 17:28:57,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:28:57,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50425529] [2023-12-15 17:28:57,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50425529] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:28:57,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:28:57,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-15 17:28:57,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317202702] [2023-12-15 17:28:57,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:28:57,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 17:28:57,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:28:57,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 17:28:57,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 17:28:57,772 INFO L87 Difference]: Start difference. First operand has 150 states, 148 states have (on average 1.8175675675675675) internal successors, (269), 149 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 2 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 17:28:57,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:28:57,982 INFO L93 Difference]: Finished difference Result 313 states and 562 transitions. [2023-12-15 17:28:57,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 17:28:57,984 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 2 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2023-12-15 17:28:57,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:28:57,992 INFO L225 Difference]: With dead ends: 313 [2023-12-15 17:28:57,992 INFO L226 Difference]: Without dead ends: 161 [2023-12-15 17:28:57,995 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 17:28:58,008 INFO L413 NwaCegarLoop]: 260 mSDtfsCounter, 35 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 409 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 17:28:58,008 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 409 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 17:28:58,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2023-12-15 17:28:58,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 158. [2023-12-15 17:28:58,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 157 states have (on average 1.605095541401274) internal successors, (252), 157 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 17:28:58,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 252 transitions. [2023-12-15 17:28:58,044 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 252 transitions. Word has length 43 [2023-12-15 17:28:58,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:28:58,045 INFO L495 AbstractCegarLoop]: Abstraction has 158 states and 252 transitions. [2023-12-15 17:28:58,045 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 2 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 17:28:58,045 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 252 transitions. [2023-12-15 17:28:58,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-15 17:28:58,047 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:28:58,047 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 17:28:58,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-15 17:28:58,048 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:28:58,048 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:28:58,049 INFO L85 PathProgramCache]: Analyzing trace with hash 1586399182, now seen corresponding path program 1 times [2023-12-15 17:28:58,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:28:58,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765888368] [2023-12-15 17:28:58,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:28:58,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:28:58,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:28:58,099 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 17:28:58,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:28:58,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765888368] [2023-12-15 17:28:58,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765888368] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:28:58,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:28:58,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 17:28:58,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184092819] [2023-12-15 17:28:58,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:28:58,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 17:28:58,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:28:58,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 17:28:58,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 17:28:58,103 INFO L87 Difference]: Start difference. First operand 158 states and 252 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 17:28:58,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:28:58,212 INFO L93 Difference]: Finished difference Result 329 states and 528 transitions. [2023-12-15 17:28:58,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 17:28:58,212 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2023-12-15 17:28:58,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:28:58,214 INFO L225 Difference]: With dead ends: 329 [2023-12-15 17:28:58,214 INFO L226 Difference]: Without dead ends: 182 [2023-12-15 17:28:58,215 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 17:28:58,216 INFO L413 NwaCegarLoop]: 219 mSDtfsCounter, 14 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 17:28:58,217 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 355 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 17:28:58,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2023-12-15 17:28:58,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 178. [2023-12-15 17:28:58,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 177 states have (on average 1.5649717514124293) internal successors, (277), 177 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 17:28:58,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 277 transitions. [2023-12-15 17:28:58,233 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 277 transitions. Word has length 58 [2023-12-15 17:28:58,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:28:58,233 INFO L495 AbstractCegarLoop]: Abstraction has 178 states and 277 transitions. [2023-12-15 17:28:58,233 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 17:28:58,233 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 277 transitions. [2023-12-15 17:28:58,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-15 17:28:58,236 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:28:58,236 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 17:28:58,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-15 17:28:58,236 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:28:58,236 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:28:58,237 INFO L85 PathProgramCache]: Analyzing trace with hash 1249860790, now seen corresponding path program 1 times [2023-12-15 17:28:58,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:28:58,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744972837] [2023-12-15 17:28:58,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:28:58,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:28:58,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:28:58,330 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-15 17:28:58,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:28:58,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744972837] [2023-12-15 17:28:58,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744972837] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:28:58,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:28:58,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 17:28:58,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094083365] [2023-12-15 17:28:58,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:28:58,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 17:28:58,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:28:58,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 17:28:58,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 17:28:58,337 INFO L87 Difference]: Start difference. First operand 178 states and 277 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 17:28:58,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:28:58,494 INFO L93 Difference]: Finished difference Result 390 states and 617 transitions. [2023-12-15 17:28:58,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 17:28:58,495 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2023-12-15 17:28:58,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:28:58,497 INFO L225 Difference]: With dead ends: 390 [2023-12-15 17:28:58,497 INFO L226 Difference]: Without dead ends: 223 [2023-12-15 17:28:58,498 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 17:28:58,499 INFO L413 NwaCegarLoop]: 216 mSDtfsCounter, 15 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 17:28:58,499 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 352 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 17:28:58,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2023-12-15 17:28:58,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 219. [2023-12-15 17:28:58,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 218 states have (on average 1.481651376146789) internal successors, (323), 218 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 17:28:58,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 323 transitions. [2023-12-15 17:28:58,510 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 323 transitions. Word has length 78 [2023-12-15 17:28:58,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:28:58,510 INFO L495 AbstractCegarLoop]: Abstraction has 219 states and 323 transitions. [2023-12-15 17:28:58,511 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 17:28:58,511 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 323 transitions. [2023-12-15 17:28:58,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-15 17:28:58,513 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:28:58,513 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 17:28:58,514 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-15 17:28:58,514 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:28:58,514 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:28:58,514 INFO L85 PathProgramCache]: Analyzing trace with hash 1673507512, now seen corresponding path program 1 times [2023-12-15 17:28:58,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:28:58,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132473603] [2023-12-15 17:28:58,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:28:58,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:28:58,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:28:58,590 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-15 17:28:58,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:28:58,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132473603] [2023-12-15 17:28:58,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132473603] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:28:58,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:28:58,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 17:28:58,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67782339] [2023-12-15 17:28:58,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:28:58,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 17:28:58,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:28:58,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 17:28:58,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 17:28:58,594 INFO L87 Difference]: Start difference. First operand 219 states and 323 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 17:28:58,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:28:58,703 INFO L93 Difference]: Finished difference Result 454 states and 676 transitions. [2023-12-15 17:28:58,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 17:28:58,703 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2023-12-15 17:28:58,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:28:58,706 INFO L225 Difference]: With dead ends: 454 [2023-12-15 17:28:58,706 INFO L226 Difference]: Without dead ends: 246 [2023-12-15 17:28:58,711 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 17:28:58,719 INFO L413 NwaCegarLoop]: 235 mSDtfsCounter, 17 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 371 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 17:28:58,720 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 371 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 17:28:58,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2023-12-15 17:28:58,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 241. [2023-12-15 17:28:58,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 240 states have (on average 1.4583333333333333) internal successors, (350), 240 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 17:28:58,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 350 transitions. [2023-12-15 17:28:58,738 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 350 transitions. Word has length 78 [2023-12-15 17:28:58,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:28:58,738 INFO L495 AbstractCegarLoop]: Abstraction has 241 states and 350 transitions. [2023-12-15 17:28:58,738 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 17:28:58,738 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 350 transitions. [2023-12-15 17:28:58,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-15 17:28:58,741 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:28:58,741 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 17:28:58,741 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-15 17:28:58,741 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:28:58,742 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:28:58,742 INFO L85 PathProgramCache]: Analyzing trace with hash -1699464270, now seen corresponding path program 1 times [2023-12-15 17:28:58,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:28:58,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210919167] [2023-12-15 17:28:58,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:28:58,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:28:58,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:28:58,844 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-12-15 17:28:58,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:28:58,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210919167] [2023-12-15 17:28:58,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210919167] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:28:58,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:28:58,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 17:28:58,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938717235] [2023-12-15 17:28:58,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:28:58,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 17:28:58,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:28:58,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 17:28:58,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 17:28:58,847 INFO L87 Difference]: Start difference. First operand 241 states and 350 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 17:28:58,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:28:58,957 INFO L93 Difference]: Finished difference Result 515 states and 762 transitions. [2023-12-15 17:28:58,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 17:28:58,958 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2023-12-15 17:28:58,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:28:58,960 INFO L225 Difference]: With dead ends: 515 [2023-12-15 17:28:58,960 INFO L226 Difference]: Without dead ends: 285 [2023-12-15 17:28:58,961 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 17:28:58,961 INFO L413 NwaCegarLoop]: 234 mSDtfsCounter, 45 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 17:28:58,961 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 370 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 17:28:58,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2023-12-15 17:28:58,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 265. [2023-12-15 17:28:58,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 264 states have (on average 1.4356060606060606) internal successors, (379), 264 states have internal predecessors, (379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 17:28:58,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 379 transitions. [2023-12-15 17:28:58,978 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 379 transitions. Word has length 98 [2023-12-15 17:28:58,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:28:58,979 INFO L495 AbstractCegarLoop]: Abstraction has 265 states and 379 transitions. [2023-12-15 17:28:58,979 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 17:28:58,979 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 379 transitions. [2023-12-15 17:28:58,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-12-15 17:28:58,981 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:28:58,981 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 17:28:58,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-15 17:28:58,982 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:28:58,982 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:28:58,983 INFO L85 PathProgramCache]: Analyzing trace with hash 967987460, now seen corresponding path program 1 times [2023-12-15 17:28:58,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:28:58,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551863870] [2023-12-15 17:28:58,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:28:58,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:28:59,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:28:59,107 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-12-15 17:28:59,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:28:59,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551863870] [2023-12-15 17:28:59,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551863870] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:28:59,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:28:59,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 17:28:59,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668199725] [2023-12-15 17:28:59,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:28:59,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 17:28:59,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:28:59,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 17:28:59,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 17:28:59,109 INFO L87 Difference]: Start difference. First operand 265 states and 379 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 17:28:59,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:28:59,143 INFO L93 Difference]: Finished difference Result 767 states and 1093 transitions. [2023-12-15 17:28:59,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 17:28:59,144 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2023-12-15 17:28:59,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:28:59,146 INFO L225 Difference]: With dead ends: 767 [2023-12-15 17:28:59,146 INFO L226 Difference]: Without dead ends: 513 [2023-12-15 17:28:59,148 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 17:28:59,150 INFO L413 NwaCegarLoop]: 322 mSDtfsCounter, 160 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 17:28:59,153 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 535 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 17:28:59,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states. [2023-12-15 17:28:59,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 513. [2023-12-15 17:28:59,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 513 states, 512 states have (on average 1.419921875) internal successors, (727), 512 states have internal predecessors, (727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 17:28:59,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 513 states to 513 states and 727 transitions. [2023-12-15 17:28:59,168 INFO L78 Accepts]: Start accepts. Automaton has 513 states and 727 transitions. Word has length 117 [2023-12-15 17:28:59,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:28:59,168 INFO L495 AbstractCegarLoop]: Abstraction has 513 states and 727 transitions. [2023-12-15 17:28:59,168 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 17:28:59,169 INFO L276 IsEmpty]: Start isEmpty. Operand 513 states and 727 transitions. [2023-12-15 17:28:59,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-12-15 17:28:59,174 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:28:59,175 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 17:28:59,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-15 17:28:59,175 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:28:59,175 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:28:59,176 INFO L85 PathProgramCache]: Analyzing trace with hash 1216133954, now seen corresponding path program 1 times [2023-12-15 17:28:59,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:28:59,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90715757] [2023-12-15 17:28:59,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:28:59,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:28:59,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:28:59,255 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-15 17:28:59,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:28:59,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90715757] [2023-12-15 17:28:59,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90715757] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:28:59,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:28:59,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 17:28:59,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988506877] [2023-12-15 17:28:59,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:28:59,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 17:28:59,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:28:59,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 17:28:59,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 17:28:59,257 INFO L87 Difference]: Start difference. First operand 513 states and 727 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 17:28:59,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:28:59,297 INFO L93 Difference]: Finished difference Result 1265 states and 1792 transitions. [2023-12-15 17:28:59,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 17:28:59,298 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2023-12-15 17:28:59,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:28:59,301 INFO L225 Difference]: With dead ends: 1265 [2023-12-15 17:28:59,301 INFO L226 Difference]: Without dead ends: 763 [2023-12-15 17:28:59,302 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 17:28:59,303 INFO L413 NwaCegarLoop]: 344 mSDtfsCounter, 162 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 17:28:59,303 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 557 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 17:28:59,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 763 states. [2023-12-15 17:28:59,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 763 to 763. [2023-12-15 17:28:59,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 763 states, 762 states have (on average 1.4146981627296589) internal successors, (1078), 762 states have internal predecessors, (1078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 17:28:59,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 763 states to 763 states and 1078 transitions. [2023-12-15 17:28:59,319 INFO L78 Accepts]: Start accepts. Automaton has 763 states and 1078 transitions. Word has length 117 [2023-12-15 17:28:59,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:28:59,319 INFO L495 AbstractCegarLoop]: Abstraction has 763 states and 1078 transitions. [2023-12-15 17:28:59,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 17:28:59,319 INFO L276 IsEmpty]: Start isEmpty. Operand 763 states and 1078 transitions. [2023-12-15 17:28:59,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-12-15 17:28:59,321 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:28:59,321 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 17:28:59,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-15 17:28:59,322 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:28:59,322 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:28:59,322 INFO L85 PathProgramCache]: Analyzing trace with hash -1512075392, now seen corresponding path program 1 times [2023-12-15 17:28:59,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:28:59,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755803086] [2023-12-15 17:28:59,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:28:59,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:28:59,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:28:59,369 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-15 17:28:59,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:28:59,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755803086] [2023-12-15 17:28:59,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755803086] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:28:59,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:28:59,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 17:28:59,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464806833] [2023-12-15 17:28:59,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:28:59,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 17:28:59,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:28:59,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 17:28:59,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 17:28:59,372 INFO L87 Difference]: Start difference. First operand 763 states and 1078 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 17:28:59,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:28:59,402 INFO L93 Difference]: Finished difference Result 1538 states and 2166 transitions. [2023-12-15 17:28:59,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 17:28:59,402 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2023-12-15 17:28:59,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:28:59,405 INFO L225 Difference]: With dead ends: 1538 [2023-12-15 17:28:59,405 INFO L226 Difference]: Without dead ends: 786 [2023-12-15 17:28:59,406 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 17:28:59,407 INFO L413 NwaCegarLoop]: 232 mSDtfsCounter, 10 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 445 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 17:28:59,407 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 445 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 17:28:59,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 786 states. [2023-12-15 17:28:59,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 786 to 786. [2023-12-15 17:28:59,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 786 states, 785 states have (on average 1.4089171974522292) internal successors, (1106), 785 states have internal predecessors, (1106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 17:28:59,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 786 states to 786 states and 1106 transitions. [2023-12-15 17:28:59,422 INFO L78 Accepts]: Start accepts. Automaton has 786 states and 1106 transitions. Word has length 117 [2023-12-15 17:28:59,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:28:59,422 INFO L495 AbstractCegarLoop]: Abstraction has 786 states and 1106 transitions. [2023-12-15 17:28:59,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 17:28:59,422 INFO L276 IsEmpty]: Start isEmpty. Operand 786 states and 1106 transitions. [2023-12-15 17:28:59,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-12-15 17:28:59,424 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:28:59,424 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 17:28:59,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-15 17:28:59,425 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:28:59,425 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:28:59,425 INFO L85 PathProgramCache]: Analyzing trace with hash 385421374, now seen corresponding path program 1 times [2023-12-15 17:28:59,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:28:59,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202885613] [2023-12-15 17:28:59,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:28:59,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:28:59,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:28:59,458 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-12-15 17:28:59,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:28:59,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202885613] [2023-12-15 17:28:59,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202885613] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:28:59,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:28:59,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-15 17:28:59,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068806682] [2023-12-15 17:28:59,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:28:59,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 17:28:59,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:28:59,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 17:28:59,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 17:28:59,461 INFO L87 Difference]: Start difference. First operand 786 states and 1106 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 2 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 17:28:59,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:28:59,490 INFO L93 Difference]: Finished difference Result 1573 states and 2206 transitions. [2023-12-15 17:28:59,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 17:28:59,490 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 2 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2023-12-15 17:28:59,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:28:59,493 INFO L225 Difference]: With dead ends: 1573 [2023-12-15 17:28:59,493 INFO L226 Difference]: Without dead ends: 798 [2023-12-15 17:28:59,494 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 17:28:59,495 INFO L413 NwaCegarLoop]: 224 mSDtfsCounter, 13 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 17:28:59,495 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 419 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 17:28:59,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 798 states. [2023-12-15 17:28:59,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 798 to 798. [2023-12-15 17:28:59,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 798 states, 797 states have (on average 1.4027603513174405) internal successors, (1118), 797 states have internal predecessors, (1118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 17:28:59,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 798 states to 798 states and 1118 transitions. [2023-12-15 17:28:59,509 INFO L78 Accepts]: Start accepts. Automaton has 798 states and 1118 transitions. Word has length 117 [2023-12-15 17:28:59,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:28:59,510 INFO L495 AbstractCegarLoop]: Abstraction has 798 states and 1118 transitions. [2023-12-15 17:28:59,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 2 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 17:28:59,510 INFO L276 IsEmpty]: Start isEmpty. Operand 798 states and 1118 transitions. [2023-12-15 17:28:59,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2023-12-15 17:28:59,512 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:28:59,512 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 17:28:59,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-15 17:28:59,513 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:28:59,513 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:28:59,513 INFO L85 PathProgramCache]: Analyzing trace with hash -821751423, now seen corresponding path program 1 times [2023-12-15 17:28:59,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:28:59,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201541476] [2023-12-15 17:28:59,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:28:59,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:28:59,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:28:59,582 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 148 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-12-15 17:28:59,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:28:59,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201541476] [2023-12-15 17:28:59,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201541476] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:28:59,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:28:59,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 17:28:59,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535055710] [2023-12-15 17:28:59,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:28:59,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 17:28:59,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:28:59,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 17:28:59,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 17:28:59,584 INFO L87 Difference]: Start difference. First operand 798 states and 1118 transitions. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 17:28:59,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:28:59,735 INFO L93 Difference]: Finished difference Result 1684 states and 2401 transitions. [2023-12-15 17:28:59,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 17:28:59,735 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 154 [2023-12-15 17:28:59,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:28:59,739 INFO L225 Difference]: With dead ends: 1684 [2023-12-15 17:28:59,739 INFO L226 Difference]: Without dead ends: 909 [2023-12-15 17:28:59,740 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 17:28:59,741 INFO L413 NwaCegarLoop]: 226 mSDtfsCounter, 35 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 17:28:59,741 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 355 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 17:28:59,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 909 states. [2023-12-15 17:28:59,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 909 to 878. [2023-12-15 17:28:59,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 878 states, 877 states have (on average 1.3842645381984036) internal successors, (1214), 877 states have internal predecessors, (1214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 17:28:59,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 878 states to 878 states and 1214 transitions. [2023-12-15 17:28:59,760 INFO L78 Accepts]: Start accepts. Automaton has 878 states and 1214 transitions. Word has length 154 [2023-12-15 17:28:59,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:28:59,761 INFO L495 AbstractCegarLoop]: Abstraction has 878 states and 1214 transitions. [2023-12-15 17:28:59,761 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 17:28:59,761 INFO L276 IsEmpty]: Start isEmpty. Operand 878 states and 1214 transitions. [2023-12-15 17:28:59,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2023-12-15 17:28:59,764 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:28:59,764 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 17:28:59,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-15 17:28:59,764 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:28:59,765 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:28:59,765 INFO L85 PathProgramCache]: Analyzing trace with hash -1792277032, now seen corresponding path program 1 times [2023-12-15 17:28:59,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:28:59,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708952707] [2023-12-15 17:28:59,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:28:59,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:28:59,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:28:59,827 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2023-12-15 17:28:59,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:28:59,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708952707] [2023-12-15 17:28:59,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708952707] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:28:59,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:28:59,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 17:28:59,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955660399] [2023-12-15 17:28:59,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:28:59,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 17:28:59,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:28:59,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 17:28:59,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 17:28:59,830 INFO L87 Difference]: Start difference. First operand 878 states and 1214 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 17:28:59,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:28:59,977 INFO L93 Difference]: Finished difference Result 1900 states and 2688 transitions. [2023-12-15 17:28:59,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 17:28:59,977 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 165 [2023-12-15 17:28:59,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:28:59,981 INFO L225 Difference]: With dead ends: 1900 [2023-12-15 17:28:59,981 INFO L226 Difference]: Without dead ends: 1042 [2023-12-15 17:28:59,982 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 17:28:59,983 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 197 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 17:28:59,983 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 186 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 17:28:59,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1042 states. [2023-12-15 17:28:59,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1042 to 1025. [2023-12-15 17:29:00,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1025 states, 1024 states have (on average 1.4287109375) internal successors, (1463), 1024 states have internal predecessors, (1463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 17:29:00,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1025 states to 1025 states and 1463 transitions. [2023-12-15 17:29:00,004 INFO L78 Accepts]: Start accepts. Automaton has 1025 states and 1463 transitions. Word has length 165 [2023-12-15 17:29:00,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:29:00,004 INFO L495 AbstractCegarLoop]: Abstraction has 1025 states and 1463 transitions. [2023-12-15 17:29:00,005 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 17:29:00,005 INFO L276 IsEmpty]: Start isEmpty. Operand 1025 states and 1463 transitions. [2023-12-15 17:29:00,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2023-12-15 17:29:00,007 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:29:00,008 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 17:29:00,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-15 17:29:00,008 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:29:00,008 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:29:00,008 INFO L85 PathProgramCache]: Analyzing trace with hash -441903689, now seen corresponding path program 1 times [2023-12-15 17:29:00,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:29:00,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344656483] [2023-12-15 17:29:00,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:29:00,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:29:00,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:00,064 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 211 proven. 0 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2023-12-15 17:29:00,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:29:00,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344656483] [2023-12-15 17:29:00,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [344656483] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:29:00,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:29:00,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 17:29:00,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237516337] [2023-12-15 17:29:00,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:29:00,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 17:29:00,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:29:00,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 17:29:00,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 17:29:00,067 INFO L87 Difference]: Start difference. First operand 1025 states and 1463 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 17:29:00,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:29:00,183 INFO L93 Difference]: Finished difference Result 2117 states and 3057 transitions. [2023-12-15 17:29:00,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 17:29:00,183 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 196 [2023-12-15 17:29:00,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:29:00,186 INFO L225 Difference]: With dead ends: 2117 [2023-12-15 17:29:00,187 INFO L226 Difference]: Without dead ends: 1115 [2023-12-15 17:29:00,187 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 17:29:00,188 INFO L413 NwaCegarLoop]: 235 mSDtfsCounter, 13 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 365 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 17:29:00,188 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 365 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 17:29:00,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1115 states. [2023-12-15 17:29:00,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1115 to 1115. [2023-12-15 17:29:00,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1115 states, 1114 states have (on average 1.40754039497307) internal successors, (1568), 1114 states have internal predecessors, (1568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 17:29:00,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1115 states to 1115 states and 1568 transitions. [2023-12-15 17:29:00,208 INFO L78 Accepts]: Start accepts. Automaton has 1115 states and 1568 transitions. Word has length 196 [2023-12-15 17:29:00,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:29:00,208 INFO L495 AbstractCegarLoop]: Abstraction has 1115 states and 1568 transitions. [2023-12-15 17:29:00,208 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 17:29:00,209 INFO L276 IsEmpty]: Start isEmpty. Operand 1115 states and 1568 transitions. [2023-12-15 17:29:00,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2023-12-15 17:29:00,211 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:29:00,211 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 17:29:00,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-15 17:29:00,212 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:29:00,212 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:29:00,212 INFO L85 PathProgramCache]: Analyzing trace with hash 1642226952, now seen corresponding path program 1 times [2023-12-15 17:29:00,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:29:00,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590632138] [2023-12-15 17:29:00,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:29:00,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:29:00,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:00,314 INFO L134 CoverageAnalysis]: Checked inductivity of 437 backedges. 154 proven. 0 refuted. 0 times theorem prover too weak. 283 trivial. 0 not checked. [2023-12-15 17:29:00,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:29:00,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590632138] [2023-12-15 17:29:00,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590632138] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:29:00,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:29:00,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 17:29:00,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567235646] [2023-12-15 17:29:00,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:29:00,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 17:29:00,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:29:00,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 17:29:00,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 17:29:00,316 INFO L87 Difference]: Start difference. First operand 1115 states and 1568 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 17:29:00,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:29:00,442 INFO L93 Difference]: Finished difference Result 2330 states and 3330 transitions. [2023-12-15 17:29:00,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 17:29:00,443 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2023-12-15 17:29:00,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:29:00,446 INFO L225 Difference]: With dead ends: 2330 [2023-12-15 17:29:00,446 INFO L226 Difference]: Without dead ends: 1113 [2023-12-15 17:29:00,449 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 17:29:00,450 INFO L413 NwaCegarLoop]: 235 mSDtfsCounter, 9 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 371 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 17:29:00,450 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 371 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 17:29:00,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1113 states. [2023-12-15 17:29:00,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1113 to 1113. [2023-12-15 17:29:00,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1113 states, 1112 states have (on average 1.4010791366906474) internal successors, (1558), 1112 states have internal predecessors, (1558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 17:29:00,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1113 states to 1113 states and 1558 transitions. [2023-12-15 17:29:00,471 INFO L78 Accepts]: Start accepts. Automaton has 1113 states and 1558 transitions. Word has length 223 [2023-12-15 17:29:00,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:29:00,471 INFO L495 AbstractCegarLoop]: Abstraction has 1113 states and 1558 transitions. [2023-12-15 17:29:00,471 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 17:29:00,471 INFO L276 IsEmpty]: Start isEmpty. Operand 1113 states and 1558 transitions. [2023-12-15 17:29:00,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2023-12-15 17:29:00,474 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:29:00,474 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 17:29:00,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-15 17:29:00,475 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:29:00,475 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:29:00,475 INFO L85 PathProgramCache]: Analyzing trace with hash 180266606, now seen corresponding path program 1 times [2023-12-15 17:29:00,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:29:00,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284481296] [2023-12-15 17:29:00,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:29:00,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:29:00,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:00,564 INFO L134 CoverageAnalysis]: Checked inductivity of 626 backedges. 409 proven. 0 refuted. 0 times theorem prover too weak. 217 trivial. 0 not checked. [2023-12-15 17:29:00,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:29:00,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284481296] [2023-12-15 17:29:00,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284481296] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:29:00,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:29:00,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 17:29:00,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801319497] [2023-12-15 17:29:00,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:29:00,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 17:29:00,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:29:00,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 17:29:00,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 17:29:00,566 INFO L87 Difference]: Start difference. First operand 1113 states and 1558 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 17:29:00,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:29:00,635 INFO L93 Difference]: Finished difference Result 3180 states and 4479 transitions. [2023-12-15 17:29:00,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 17:29:00,636 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 262 [2023-12-15 17:29:00,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:29:00,640 INFO L225 Difference]: With dead ends: 3180 [2023-12-15 17:29:00,641 INFO L226 Difference]: Without dead ends: 1415 [2023-12-15 17:29:00,643 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 17:29:00,643 INFO L413 NwaCegarLoop]: 387 mSDtfsCounter, 148 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 606 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 17:29:00,643 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 606 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 17:29:00,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1415 states. [2023-12-15 17:29:00,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1415 to 1413. [2023-12-15 17:29:00,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1413 states, 1412 states have (on average 1.405099150141643) internal successors, (1984), 1412 states have internal predecessors, (1984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 17:29:00,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1413 states to 1413 states and 1984 transitions. [2023-12-15 17:29:00,669 INFO L78 Accepts]: Start accepts. Automaton has 1413 states and 1984 transitions. Word has length 262 [2023-12-15 17:29:00,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:29:00,669 INFO L495 AbstractCegarLoop]: Abstraction has 1413 states and 1984 transitions. [2023-12-15 17:29:00,669 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 17:29:00,670 INFO L276 IsEmpty]: Start isEmpty. Operand 1413 states and 1984 transitions. [2023-12-15 17:29:00,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2023-12-15 17:29:00,673 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:29:00,673 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 8, 8, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 17:29:00,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-15 17:29:00,674 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:29:00,674 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:29:00,674 INFO L85 PathProgramCache]: Analyzing trace with hash -607280505, now seen corresponding path program 1 times [2023-12-15 17:29:00,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:29:00,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123295898] [2023-12-15 17:29:00,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:29:00,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:29:00,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:00,750 INFO L134 CoverageAnalysis]: Checked inductivity of 909 backedges. 471 proven. 0 refuted. 0 times theorem prover too weak. 438 trivial. 0 not checked. [2023-12-15 17:29:00,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:29:00,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123295898] [2023-12-15 17:29:00,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123295898] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:29:00,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:29:00,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 17:29:00,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310134680] [2023-12-15 17:29:00,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:29:00,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 17:29:00,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:29:00,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 17:29:00,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 17:29:00,753 INFO L87 Difference]: Start difference. First operand 1413 states and 1984 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 17:29:00,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:29:00,862 INFO L93 Difference]: Finished difference Result 2959 states and 4213 transitions. [2023-12-15 17:29:00,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 17:29:00,863 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 308 [2023-12-15 17:29:00,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:29:00,868 INFO L225 Difference]: With dead ends: 2959 [2023-12-15 17:29:00,868 INFO L226 Difference]: Without dead ends: 1569 [2023-12-15 17:29:00,870 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 17:29:00,871 INFO L413 NwaCegarLoop]: 231 mSDtfsCounter, 30 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 17:29:00,871 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 367 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 17:29:00,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1569 states. [2023-12-15 17:29:00,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1569 to 1517. [2023-12-15 17:29:00,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1517 states, 1516 states have (on average 1.3905013192612137) internal successors, (2108), 1516 states have internal predecessors, (2108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 17:29:00,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1517 states to 1517 states and 2108 transitions. [2023-12-15 17:29:00,899 INFO L78 Accepts]: Start accepts. Automaton has 1517 states and 2108 transitions. Word has length 308 [2023-12-15 17:29:00,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:29:00,899 INFO L495 AbstractCegarLoop]: Abstraction has 1517 states and 2108 transitions. [2023-12-15 17:29:00,900 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 17:29:00,900 INFO L276 IsEmpty]: Start isEmpty. Operand 1517 states and 2108 transitions. [2023-12-15 17:29:00,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2023-12-15 17:29:00,904 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:29:00,904 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 17:29:00,904 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-15 17:29:00,904 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:29:00,905 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:29:00,905 INFO L85 PathProgramCache]: Analyzing trace with hash 1677575352, now seen corresponding path program 1 times [2023-12-15 17:29:00,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:29:00,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676597356] [2023-12-15 17:29:00,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:29:00,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:29:00,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:00,984 INFO L134 CoverageAnalysis]: Checked inductivity of 1096 backedges. 607 proven. 0 refuted. 0 times theorem prover too weak. 489 trivial. 0 not checked. [2023-12-15 17:29:00,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:29:00,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676597356] [2023-12-15 17:29:00,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676597356] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:29:00,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:29:00,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 17:29:00,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466716558] [2023-12-15 17:29:00,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:29:00,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 17:29:00,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:29:00,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 17:29:00,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 17:29:00,987 INFO L87 Difference]: Start difference. First operand 1517 states and 2108 transitions. Second operand has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 17:29:01,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:29:01,098 INFO L93 Difference]: Finished difference Result 3131 states and 4389 transitions. [2023-12-15 17:29:01,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 17:29:01,099 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 330 [2023-12-15 17:29:01,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:29:01,104 INFO L225 Difference]: With dead ends: 3131 [2023-12-15 17:29:01,104 INFO L226 Difference]: Without dead ends: 1637 [2023-12-15 17:29:01,106 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 17:29:01,107 INFO L413 NwaCegarLoop]: 231 mSDtfsCounter, 11 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 17:29:01,107 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 367 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 17:29:01,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1637 states. [2023-12-15 17:29:01,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1637 to 1629. [2023-12-15 17:29:01,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1629 states, 1628 states have (on average 1.375921375921376) internal successors, (2240), 1628 states have internal predecessors, (2240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 17:29:01,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1629 states to 1629 states and 2240 transitions. [2023-12-15 17:29:01,140 INFO L78 Accepts]: Start accepts. Automaton has 1629 states and 2240 transitions. Word has length 330 [2023-12-15 17:29:01,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:29:01,140 INFO L495 AbstractCegarLoop]: Abstraction has 1629 states and 2240 transitions. [2023-12-15 17:29:01,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 17:29:01,140 INFO L276 IsEmpty]: Start isEmpty. Operand 1629 states and 2240 transitions. [2023-12-15 17:29:01,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 363 [2023-12-15 17:29:01,145 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:29:01,145 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 10, 10, 9, 9, 8, 8, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 17:29:01,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-15 17:29:01,145 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:29:01,146 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:29:01,146 INFO L85 PathProgramCache]: Analyzing trace with hash 1748390064, now seen corresponding path program 1 times [2023-12-15 17:29:01,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:29:01,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770633445] [2023-12-15 17:29:01,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:29:01,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:29:01,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:01,306 INFO L134 CoverageAnalysis]: Checked inductivity of 1330 backedges. 860 proven. 25 refuted. 0 times theorem prover too weak. 445 trivial. 0 not checked. [2023-12-15 17:29:01,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:29:01,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770633445] [2023-12-15 17:29:01,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770633445] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 17:29:01,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [899336161] [2023-12-15 17:29:01,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:29:01,307 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 17:29:01,307 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 17:29:01,312 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 17:29:01,329 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-15 17:29:01,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:01,474 INFO L262 TraceCheckSpWp]: Trace formula consists of 594 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-15 17:29:01,494 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 17:29:01,617 INFO L134 CoverageAnalysis]: Checked inductivity of 1330 backedges. 860 proven. 25 refuted. 0 times theorem prover too weak. 445 trivial. 0 not checked. [2023-12-15 17:29:01,618 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-15 17:29:01,699 INFO L134 CoverageAnalysis]: Checked inductivity of 1330 backedges. 860 proven. 25 refuted. 0 times theorem prover too weak. 445 trivial. 0 not checked. [2023-12-15 17:29:01,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [899336161] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-15 17:29:01,699 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-15 17:29:01,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2023-12-15 17:29:01,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095908687] [2023-12-15 17:29:01,700 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-15 17:29:01,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-15 17:29:01,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:29:01,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-15 17:29:01,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-15 17:29:01,702 INFO L87 Difference]: Start difference. First operand 1629 states and 2240 transitions. Second operand has 6 states, 6 states have (on average 39.666666666666664) internal successors, (238), 6 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 17:29:02,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:29:02,083 INFO L93 Difference]: Finished difference Result 3978 states and 5542 transitions. [2023-12-15 17:29:02,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-15 17:29:02,084 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 39.666666666666664) internal successors, (238), 6 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 362 [2023-12-15 17:29:02,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:29:02,091 INFO L225 Difference]: With dead ends: 3978 [2023-12-15 17:29:02,091 INFO L226 Difference]: Without dead ends: 2253 [2023-12-15 17:29:02,094 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 734 GetRequests, 726 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2023-12-15 17:29:02,094 INFO L413 NwaCegarLoop]: 246 mSDtfsCounter, 883 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 883 SdHoareTripleChecker+Valid, 531 SdHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-15 17:29:02,094 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [883 Valid, 531 Invalid, 413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-15 17:29:02,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2253 states. [2023-12-15 17:29:02,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2253 to 1641. [2023-12-15 17:29:02,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1641 states, 1640 states have (on average 1.3609756097560977) internal successors, (2232), 1640 states have internal predecessors, (2232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 17:29:02,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1641 states to 1641 states and 2232 transitions. [2023-12-15 17:29:02,131 INFO L78 Accepts]: Start accepts. Automaton has 1641 states and 2232 transitions. Word has length 362 [2023-12-15 17:29:02,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:29:02,131 INFO L495 AbstractCegarLoop]: Abstraction has 1641 states and 2232 transitions. [2023-12-15 17:29:02,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 39.666666666666664) internal successors, (238), 6 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 17:29:02,132 INFO L276 IsEmpty]: Start isEmpty. Operand 1641 states and 2232 transitions. [2023-12-15 17:29:02,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 460 [2023-12-15 17:29:02,138 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:29:02,138 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 13, 13, 12, 12, 11, 11, 10, 10, 10, 10, 8, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 17:29:02,151 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-15 17:29:02,344 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-12-15 17:29:02,345 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:29:02,345 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:29:02,345 INFO L85 PathProgramCache]: Analyzing trace with hash -240620891, now seen corresponding path program 1 times [2023-12-15 17:29:02,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:29:02,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118135045] [2023-12-15 17:29:02,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:29:02,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:29:02,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:02,452 INFO L134 CoverageAnalysis]: Checked inductivity of 2233 backedges. 1260 proven. 0 refuted. 0 times theorem prover too weak. 973 trivial. 0 not checked. [2023-12-15 17:29:02,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:29:02,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118135045] [2023-12-15 17:29:02,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118135045] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:29:02,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:29:02,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 17:29:02,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772891156] [2023-12-15 17:29:02,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:29:02,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 17:29:02,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:29:02,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 17:29:02,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 17:29:02,454 INFO L87 Difference]: Start difference. First operand 1641 states and 2232 transitions. Second operand has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 17:29:02,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:29:02,587 INFO L93 Difference]: Finished difference Result 3434 states and 4738 transitions. [2023-12-15 17:29:02,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 17:29:02,588 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 459 [2023-12-15 17:29:02,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:29:02,593 INFO L225 Difference]: With dead ends: 3434 [2023-12-15 17:29:02,594 INFO L226 Difference]: Without dead ends: 1816 [2023-12-15 17:29:02,596 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 17:29:02,597 INFO L413 NwaCegarLoop]: 225 mSDtfsCounter, 11 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 361 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 17:29:02,597 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 361 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 17:29:02,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1816 states. [2023-12-15 17:29:02,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1816 to 1806. [2023-12-15 17:29:02,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1806 states, 1805 states have (on average 1.3418282548476455) internal successors, (2422), 1805 states have internal predecessors, (2422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 17:29:02,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1806 states to 1806 states and 2422 transitions. [2023-12-15 17:29:02,635 INFO L78 Accepts]: Start accepts. Automaton has 1806 states and 2422 transitions. Word has length 459 [2023-12-15 17:29:02,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:29:02,635 INFO L495 AbstractCegarLoop]: Abstraction has 1806 states and 2422 transitions. [2023-12-15 17:29:02,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 17:29:02,635 INFO L276 IsEmpty]: Start isEmpty. Operand 1806 states and 2422 transitions. [2023-12-15 17:29:02,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 520 [2023-12-15 17:29:02,643 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:29:02,643 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 15, 15, 14, 14, 13, 13, 12, 12, 12, 12, 10, 8, 8, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 17:29:02,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-15 17:29:02,643 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:29:02,644 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:29:02,644 INFO L85 PathProgramCache]: Analyzing trace with hash -1116598587, now seen corresponding path program 1 times [2023-12-15 17:29:02,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:29:02,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401435718] [2023-12-15 17:29:02,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:29:02,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:29:02,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:02,763 INFO L134 CoverageAnalysis]: Checked inductivity of 2967 backedges. 1680 proven. 0 refuted. 0 times theorem prover too weak. 1287 trivial. 0 not checked. [2023-12-15 17:29:02,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:29:02,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401435718] [2023-12-15 17:29:02,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401435718] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:29:02,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:29:02,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 17:29:02,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734704250] [2023-12-15 17:29:02,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:29:02,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 17:29:02,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:29:02,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 17:29:02,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 17:29:02,766 INFO L87 Difference]: Start difference. First operand 1806 states and 2422 transitions. Second operand has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 17:29:02,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:29:02,911 INFO L93 Difference]: Finished difference Result 3774 states and 5138 transitions. [2023-12-15 17:29:02,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 17:29:02,911 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 519 [2023-12-15 17:29:02,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:29:02,918 INFO L225 Difference]: With dead ends: 3774 [2023-12-15 17:29:02,918 INFO L226 Difference]: Without dead ends: 1991 [2023-12-15 17:29:02,920 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 17:29:02,921 INFO L413 NwaCegarLoop]: 225 mSDtfsCounter, 11 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 361 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 17:29:02,921 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 361 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 17:29:02,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1991 states. [2023-12-15 17:29:02,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1991 to 1981. [2023-12-15 17:29:02,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1981 states, 1980 states have (on average 1.3242424242424242) internal successors, (2622), 1980 states have internal predecessors, (2622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 17:29:02,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1981 states to 1981 states and 2622 transitions. [2023-12-15 17:29:02,959 INFO L78 Accepts]: Start accepts. Automaton has 1981 states and 2622 transitions. Word has length 519 [2023-12-15 17:29:02,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:29:02,960 INFO L495 AbstractCegarLoop]: Abstraction has 1981 states and 2622 transitions. [2023-12-15 17:29:02,960 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 17:29:02,960 INFO L276 IsEmpty]: Start isEmpty. Operand 1981 states and 2622 transitions. [2023-12-15 17:29:02,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 584 [2023-12-15 17:29:02,970 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:29:02,970 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 19, 19, 19, 19, 19, 19, 18, 18, 18, 18, 18, 17, 17, 16, 16, 15, 15, 14, 14, 14, 14, 12, 10, 10, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 17:29:02,970 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-15 17:29:02,970 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:29:02,971 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:29:02,971 INFO L85 PathProgramCache]: Analyzing trace with hash 1334857221, now seen corresponding path program 1 times [2023-12-15 17:29:02,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:29:02,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973010119] [2023-12-15 17:29:02,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:29:02,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:29:03,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:03,203 INFO L134 CoverageAnalysis]: Checked inductivity of 3839 backedges. 2222 proven. 25 refuted. 0 times theorem prover too weak. 1592 trivial. 0 not checked. [2023-12-15 17:29:03,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:29:03,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973010119] [2023-12-15 17:29:03,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1973010119] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 17:29:03,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [463803405] [2023-12-15 17:29:03,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:29:03,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 17:29:03,205 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 17:29:03,205 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 17:29:03,235 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-15 17:29:03,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:03,399 INFO L262 TraceCheckSpWp]: Trace formula consists of 889 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-15 17:29:03,406 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 17:29:03,487 INFO L134 CoverageAnalysis]: Checked inductivity of 3839 backedges. 2222 proven. 25 refuted. 0 times theorem prover too weak. 1592 trivial. 0 not checked. [2023-12-15 17:29:03,487 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-15 17:29:03,567 INFO L134 CoverageAnalysis]: Checked inductivity of 3839 backedges. 2222 proven. 25 refuted. 0 times theorem prover too weak. 1592 trivial. 0 not checked. [2023-12-15 17:29:03,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [463803405] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-15 17:29:03,567 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-15 17:29:03,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2023-12-15 17:29:03,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332745363] [2023-12-15 17:29:03,568 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-15 17:29:03,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-15 17:29:03,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:29:03,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-15 17:29:03,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-12-15 17:29:03,570 INFO L87 Difference]: Start difference. First operand 1981 states and 2622 transitions. Second operand has 8 states, 8 states have (on average 40.875) internal successors, (327), 8 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 17:29:03,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:29:03,994 INFO L93 Difference]: Finished difference Result 2829 states and 3760 transitions. [2023-12-15 17:29:03,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-15 17:29:03,994 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 40.875) internal successors, (327), 8 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 583 [2023-12-15 17:29:03,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:29:03,995 INFO L225 Difference]: With dead ends: 2829 [2023-12-15 17:29:03,995 INFO L226 Difference]: Without dead ends: 0 [2023-12-15 17:29:03,998 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1174 GetRequests, 1165 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-12-15 17:29:03,999 INFO L413 NwaCegarLoop]: 307 mSDtfsCounter, 277 mSDsluCounter, 771 mSDsCounter, 0 mSdLazyCounter, 643 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 1078 SdHoareTripleChecker+Invalid, 696 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 643 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-15 17:29:03,999 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [277 Valid, 1078 Invalid, 696 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 643 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-15 17:29:04,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-15 17:29:04,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-15 17:29:04,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 17:29:04,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-15 17:29:04,003 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 583 [2023-12-15 17:29:04,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:29:04,003 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-15 17:29:04,004 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 40.875) internal successors, (327), 8 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 17:29:04,004 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-15 17:29:04,004 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-15 17:29:04,006 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-15 17:29:04,019 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-15 17:29:04,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable19 [2023-12-15 17:29:04,215 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-15 17:29:04,660 INFO L899 garLoopResultBuilder]: For program point L465(lines 465 469) no Hoare annotation was computed. [2023-12-15 17:29:04,660 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_switch_1_8593#1(lines 184 614) no Hoare annotation was computed. [2023-12-15 17:29:04,660 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_switch_1_8529#1(lines 157 623) no Hoare annotation was computed. [2023-12-15 17:29:04,660 INFO L899 garLoopResultBuilder]: For program point L202(lines 202 608) no Hoare annotation was computed. [2023-12-15 17:29:04,660 INFO L899 garLoopResultBuilder]: For program point L169(lines 169 619) no Hoare annotation was computed. [2023-12-15 17:29:04,660 INFO L899 garLoopResultBuilder]: For program point L136(lines 136 630) no Hoare annotation was computed. [2023-12-15 17:29:04,661 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_switch_1_8497#1(lines 145 627) no Hoare annotation was computed. [2023-12-15 17:29:04,661 INFO L899 garLoopResultBuilder]: For program point L335(lines 335 339) no Hoare annotation was computed. [2023-12-15 17:29:04,661 INFO L899 garLoopResultBuilder]: For program point L568(lines 568 572) no Hoare annotation was computed. [2023-12-15 17:29:04,661 INFO L899 garLoopResultBuilder]: For program point L436(lines 436 440) no Hoare annotation was computed. [2023-12-15 17:29:04,661 INFO L899 garLoopResultBuilder]: For program point L370(lines 352 388) no Hoare annotation was computed. [2023-12-15 17:29:04,661 INFO L899 garLoopResultBuilder]: For program point L205(lines 205 607) no Hoare annotation was computed. [2023-12-15 17:29:04,662 INFO L899 garLoopResultBuilder]: For program point L172(lines 172 618) no Hoare annotation was computed. [2023-12-15 17:29:04,662 INFO L899 garLoopResultBuilder]: For program point L139(lines 139 629) no Hoare annotation was computed. [2023-12-15 17:29:04,662 INFO L899 garLoopResultBuilder]: For program point L536(lines 536 540) no Hoare annotation was computed. [2023-12-15 17:29:04,662 INFO L899 garLoopResultBuilder]: For program point L470(lines 470 481) no Hoare annotation was computed. [2023-12-15 17:29:04,662 INFO L899 garLoopResultBuilder]: For program point L536-2(lines 219 600) no Hoare annotation was computed. [2023-12-15 17:29:04,662 INFO L899 garLoopResultBuilder]: For program point L239(lines 239 250) no Hoare annotation was computed. [2023-12-15 17:29:04,662 INFO L899 garLoopResultBuilder]: For program point L239-2(lines 239 250) no Hoare annotation was computed. [2023-12-15 17:29:04,662 INFO L899 garLoopResultBuilder]: For program point L372(lines 372 376) no Hoare annotation was computed. [2023-12-15 17:29:04,663 INFO L899 garLoopResultBuilder]: For program point L405-1(line 405) no Hoare annotation was computed. [2023-12-15 17:29:04,663 INFO L899 garLoopResultBuilder]: For program point L405-3(lines 405 425) no Hoare annotation was computed. [2023-12-15 17:29:04,663 INFO L899 garLoopResultBuilder]: For program point L670(lines 75 687) no Hoare annotation was computed. [2023-12-15 17:29:04,663 INFO L899 garLoopResultBuilder]: For program point L406(line 406) no Hoare annotation was computed. [2023-12-15 17:29:04,663 INFO L899 garLoopResultBuilder]: For program point L406-2(line 406) no Hoare annotation was computed. [2023-12-15 17:29:04,663 INFO L899 garLoopResultBuilder]: For program point L406-4(lines 406 412) no Hoare annotation was computed. [2023-12-15 17:29:04,663 INFO L899 garLoopResultBuilder]: For program point L241(lines 241 246) no Hoare annotation was computed. [2023-12-15 17:29:04,663 INFO L899 garLoopResultBuilder]: For program point L208(lines 208 606) no Hoare annotation was computed. [2023-12-15 17:29:04,663 INFO L899 garLoopResultBuilder]: For program point L175(lines 175 617) no Hoare annotation was computed. [2023-12-15 17:29:04,665 INFO L899 garLoopResultBuilder]: For program point L142(lines 142 628) no Hoare annotation was computed. [2023-12-15 17:29:04,666 INFO L895 garLoopResultBuilder]: At program point L109-2(lines 109 669) the Hoare annotation is: (let ((.cse3 (= 3 |ULTIMATE.start_ssl3_accept_~blastFlag~0#1|)) (.cse1 (not (= 0 |ULTIMATE.start_ssl3_accept_~s__hit~0#1|))) (.cse2 (<= |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1| 8576)) (.cse0 (= 2 |ULTIMATE.start_ssl3_accept_~blastFlag~0#1|))) (or (and (= 8464 |ULTIMATE.start_ssl3_accept_~s__state~0#1|) (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 0)) (and .cse0 (= 8560 |ULTIMATE.start_ssl3_accept_~s__state~0#1|)) (and .cse0 (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8512)) (and .cse0 .cse1) (and .cse0 (= 8544 |ULTIMATE.start_ssl3_accept_~s__state~0#1|)) (and (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8656) .cse0 .cse2) (and .cse3 (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8672) .cse2) (and .cse3 (= 3 |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1|) (= 8448 |ULTIMATE.start_ssl3_accept_~s__state~0#1|)) (and .cse3 .cse1) (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 3) (and .cse0 .cse2 (<= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8655)) (and (= 8496 |ULTIMATE.start_ssl3_accept_~s__state~0#1|) (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 1)) (and (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8528) .cse0))) [2023-12-15 17:29:04,666 INFO L899 garLoopResultBuilder]: For program point L639(lines 639 667) no Hoare annotation was computed. [2023-12-15 17:29:04,666 INFO L899 garLoopResultBuilder]: For program point L474(lines 474 478) no Hoare annotation was computed. [2023-12-15 17:29:04,666 INFO L899 garLoopResultBuilder]: For program point L640(lines 640 664) no Hoare annotation was computed. [2023-12-15 17:29:04,666 INFO L899 garLoopResultBuilder]: For program point L574(lines 574 578) no Hoare annotation was computed. [2023-12-15 17:29:04,667 INFO L899 garLoopResultBuilder]: For program point L508(lines 508 512) no Hoare annotation was computed. [2023-12-15 17:29:04,667 INFO L899 garLoopResultBuilder]: For program point L574-2(lines 574 578) no Hoare annotation was computed. [2023-12-15 17:29:04,667 INFO L899 garLoopResultBuilder]: For program point L508-2(lines 219 600) no Hoare annotation was computed. [2023-12-15 17:29:04,667 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_switch_1_8481#1(lines 127 633) no Hoare annotation was computed. [2023-12-15 17:29:04,667 INFO L899 garLoopResultBuilder]: For program point L211(lines 211 605) no Hoare annotation was computed. [2023-12-15 17:29:04,667 INFO L899 garLoopResultBuilder]: For program point L178(lines 178 616) no Hoare annotation was computed. [2023-12-15 17:29:04,667 INFO L899 garLoopResultBuilder]: For program point L145(lines 145 627) no Hoare annotation was computed. [2023-12-15 17:29:04,667 INFO L899 garLoopResultBuilder]: For program point L112(lines 112 638) no Hoare annotation was computed. [2023-12-15 17:29:04,667 INFO L899 garLoopResultBuilder]: For program point L674(lines 674 678) no Hoare annotation was computed. [2023-12-15 17:29:04,667 INFO L899 garLoopResultBuilder]: For program point L641(lines 641 650) no Hoare annotation was computed. [2023-12-15 17:29:04,668 INFO L899 garLoopResultBuilder]: For program point L674-2(lines 674 678) no Hoare annotation was computed. [2023-12-15 17:29:04,668 INFO L899 garLoopResultBuilder]: For program point L641-2(lines 640 662) no Hoare annotation was computed. [2023-12-15 17:29:04,668 INFO L899 garLoopResultBuilder]: For program point L278(lines 278 282) no Hoare annotation was computed. [2023-12-15 17:29:04,668 INFO L899 garLoopResultBuilder]: For program point L312(lines 312 316) no Hoare annotation was computed. [2023-12-15 17:29:04,668 INFO L899 garLoopResultBuilder]: For program point L312-2(lines 219 600) no Hoare annotation was computed. [2023-12-15 17:29:04,668 INFO L899 garLoopResultBuilder]: For program point L643(lines 643 647) no Hoare annotation was computed. [2023-12-15 17:29:04,668 INFO L899 garLoopResultBuilder]: For program point L214(lines 214 604) no Hoare annotation was computed. [2023-12-15 17:29:04,669 INFO L899 garLoopResultBuilder]: For program point L181(lines 181 615) no Hoare annotation was computed. [2023-12-15 17:29:04,669 INFO L899 garLoopResultBuilder]: For program point L148(lines 148 626) no Hoare annotation was computed. [2023-12-15 17:29:04,672 INFO L899 garLoopResultBuilder]: For program point L115(lines 115 637) no Hoare annotation was computed. [2023-12-15 17:29:04,673 INFO L899 garLoopResultBuilder]: For program point L347(line 347) no Hoare annotation was computed. [2023-12-15 17:29:04,673 INFO L899 garLoopResultBuilder]: For program point L347-2(line 347) no Hoare annotation was computed. [2023-12-15 17:29:04,673 INFO L899 garLoopResultBuilder]: For program point L347-4(lines 347 351) no Hoare annotation was computed. [2023-12-15 17:29:04,673 INFO L899 garLoopResultBuilder]: For program point L347-6(lines 219 600) no Hoare annotation was computed. [2023-12-15 17:29:04,673 INFO L899 garLoopResultBuilder]: For program point L83(lines 83 91) no Hoare annotation was computed. [2023-12-15 17:29:04,673 INFO L899 garLoopResultBuilder]: For program point L447(lines 447 459) no Hoare annotation was computed. [2023-12-15 17:29:04,673 INFO L899 garLoopResultBuilder]: For program point L414(lines 405 425) no Hoare annotation was computed. [2023-12-15 17:29:04,673 INFO L899 garLoopResultBuilder]: For program point L447-2(lines 447 459) no Hoare annotation was computed. [2023-12-15 17:29:04,673 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_switch_1_8657#1(lines 202 608) no Hoare annotation was computed. [2023-12-15 17:29:04,673 INFO L899 garLoopResultBuilder]: For program point L184(lines 184 614) no Hoare annotation was computed. [2023-12-15 17:29:04,673 INFO L899 garLoopResultBuilder]: For program point L151(lines 151 625) no Hoare annotation was computed. [2023-12-15 17:29:04,674 INFO L899 garLoopResultBuilder]: For program point L118(lines 118 636) no Hoare annotation was computed. [2023-12-15 17:29:04,674 INFO L899 garLoopResultBuilder]: For program point L86(lines 86 90) no Hoare annotation was computed. [2023-12-15 17:29:04,674 INFO L899 garLoopResultBuilder]: For program point L86-2(lines 83 91) no Hoare annotation was computed. [2023-12-15 17:29:04,674 INFO L899 garLoopResultBuilder]: For program point L549(lines 549 554) no Hoare annotation was computed. [2023-12-15 17:29:04,674 INFO L899 garLoopResultBuilder]: For program point L450(lines 450 455) no Hoare annotation was computed. [2023-12-15 17:29:04,674 INFO L899 garLoopResultBuilder]: For program point L417(lines 417 421) no Hoare annotation was computed. [2023-12-15 17:29:04,674 INFO L899 garLoopResultBuilder]: For program point L252(lines 252 257) no Hoare annotation was computed. [2023-12-15 17:29:04,674 INFO L899 garLoopResultBuilder]: For program point L187(lines 187 613) no Hoare annotation was computed. [2023-12-15 17:29:04,674 INFO L899 garLoopResultBuilder]: For program point L154(lines 154 624) no Hoare annotation was computed. [2023-12-15 17:29:04,674 INFO L899 garLoopResultBuilder]: For program point L121(lines 121 635) no Hoare annotation was computed. [2023-12-15 17:29:04,674 INFO L899 garLoopResultBuilder]: For program point L584(lines 584 594) no Hoare annotation was computed. [2023-12-15 17:29:04,675 INFO L899 garLoopResultBuilder]: For program point L584-1(lines 584 594) no Hoare annotation was computed. [2023-12-15 17:29:04,675 INFO L899 garLoopResultBuilder]: For program point L518(lines 518 522) no Hoare annotation was computed. [2023-12-15 17:29:04,675 INFO L899 garLoopResultBuilder]: For program point L518-2(lines 518 522) no Hoare annotation was computed. [2023-12-15 17:29:04,675 INFO L899 garLoopResultBuilder]: For program point L486(lines 486 490) no Hoare annotation was computed. [2023-12-15 17:29:04,675 INFO L899 garLoopResultBuilder]: For program point L222(lines 115 637) no Hoare annotation was computed. [2023-12-15 17:29:04,675 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_switch_1_8577#1(lines 178 616) no Hoare annotation was computed. [2023-12-15 17:29:04,675 INFO L899 garLoopResultBuilder]: For program point L685(lines 75 687) no Hoare annotation was computed. [2023-12-15 17:29:04,675 INFO L899 garLoopResultBuilder]: For program point L652(lines 652 658) no Hoare annotation was computed. [2023-12-15 17:29:04,675 INFO L899 garLoopResultBuilder]: For program point L355(line 355) no Hoare annotation was computed. [2023-12-15 17:29:04,675 INFO L899 garLoopResultBuilder]: For program point L322(lines 322 326) no Hoare annotation was computed. [2023-12-15 17:29:04,675 INFO L899 garLoopResultBuilder]: For program point L355-2(line 355) no Hoare annotation was computed. [2023-12-15 17:29:04,676 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-15 17:29:04,676 INFO L899 garLoopResultBuilder]: For program point L322-2(lines 322 326) no Hoare annotation was computed. [2023-12-15 17:29:04,676 INFO L899 garLoopResultBuilder]: For program point L355-4(lines 355 387) no Hoare annotation was computed. [2023-12-15 17:29:04,676 INFO L899 garLoopResultBuilder]: For program point L190(lines 190 612) no Hoare annotation was computed. [2023-12-15 17:29:04,676 INFO L899 garLoopResultBuilder]: For program point L157(lines 157 623) no Hoare annotation was computed. [2023-12-15 17:29:04,676 INFO L899 garLoopResultBuilder]: For program point L124(lines 124 634) no Hoare annotation was computed. [2023-12-15 17:29:04,676 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_switch_1_8641#1(lines 196 610) no Hoare annotation was computed. [2023-12-15 17:29:04,676 INFO L899 garLoopResultBuilder]: For program point $Ultimate##195(lines 394 431) no Hoare annotation was computed. [2023-12-15 17:29:04,676 INFO L899 garLoopResultBuilder]: For program point L587(lines 587 591) no Hoare annotation was computed. [2023-12-15 17:29:04,676 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_ERROR#1(lines 75 687) no Hoare annotation was computed. [2023-12-15 17:29:04,676 INFO L899 garLoopResultBuilder]: For program point L93(line 93) no Hoare annotation was computed. [2023-12-15 17:29:04,676 INFO L899 garLoopResultBuilder]: For program point L93-2(line 93) no Hoare annotation was computed. [2023-12-15 17:29:04,677 INFO L899 garLoopResultBuilder]: For program point L93-4(lines 93 101) no Hoare annotation was computed. [2023-12-15 17:29:04,677 INFO L899 garLoopResultBuilder]: For program point L93-5(lines 75 687) no Hoare annotation was computed. [2023-12-15 17:29:04,677 INFO L899 garLoopResultBuilder]: For program point L358(lines 358 386) no Hoare annotation was computed. [2023-12-15 17:29:04,677 INFO L899 garLoopResultBuilder]: For program point $Ultimate##137(line 331) no Hoare annotation was computed. [2023-12-15 17:29:04,677 INFO L899 garLoopResultBuilder]: For program point L358-1(lines 358 386) no Hoare annotation was computed. [2023-12-15 17:29:04,677 INFO L899 garLoopResultBuilder]: For program point L259(lines 259 272) no Hoare annotation was computed. [2023-12-15 17:29:04,678 INFO L899 garLoopResultBuilder]: For program point L193(lines 193 611) no Hoare annotation was computed. [2023-12-15 17:29:04,678 INFO L899 garLoopResultBuilder]: For program point L160(lines 160 622) no Hoare annotation was computed. [2023-12-15 17:29:04,678 INFO L899 garLoopResultBuilder]: For program point L127(lines 127 633) no Hoare annotation was computed. [2023-12-15 17:29:04,678 INFO L899 garLoopResultBuilder]: For program point L94(line 94) no Hoare annotation was computed. [2023-12-15 17:29:04,678 INFO L899 garLoopResultBuilder]: For program point L94-2(line 94) no Hoare annotation was computed. [2023-12-15 17:29:04,678 INFO L899 garLoopResultBuilder]: For program point L94-4(lines 94 98) no Hoare annotation was computed. [2023-12-15 17:29:04,678 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_switch_1_8673#1(lines 208 606) no Hoare annotation was computed. [2023-12-15 17:29:04,678 INFO L899 garLoopResultBuilder]: For program point L359(lines 359 383) no Hoare annotation was computed. [2023-12-15 17:29:04,678 INFO L899 garLoopResultBuilder]: For program point L227(lines 227 231) no Hoare annotation was computed. [2023-12-15 17:29:04,678 INFO L899 garLoopResultBuilder]: For program point L227-2(lines 219 600) no Hoare annotation was computed. [2023-12-15 17:29:04,678 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_switch_1_8609#1(lines 190 612) no Hoare annotation was computed. [2023-12-15 17:29:04,679 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-15 17:29:04,679 INFO L899 garLoopResultBuilder]: For program point L261(lines 261 266) no Hoare annotation was computed. [2023-12-15 17:29:04,679 INFO L899 garLoopResultBuilder]: For program point $Ultimate##279(lines 639 667) no Hoare annotation was computed. [2023-12-15 17:29:04,679 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_switch_1_8466#1(lines 136 630) no Hoare annotation was computed. [2023-12-15 17:29:04,679 INFO L899 garLoopResultBuilder]: For program point L559(lines 559 567) no Hoare annotation was computed. [2023-12-15 17:29:04,680 INFO L899 garLoopResultBuilder]: For program point L295(lines 295 299) no Hoare annotation was computed. [2023-12-15 17:29:04,680 INFO L899 garLoopResultBuilder]: For program point L295-2(lines 219 600) no Hoare annotation was computed. [2023-12-15 17:29:04,680 INFO L899 garLoopResultBuilder]: For program point L196(lines 196 610) no Hoare annotation was computed. [2023-12-15 17:29:04,680 INFO L899 garLoopResultBuilder]: For program point L163(lines 163 621) no Hoare annotation was computed. [2023-12-15 17:29:04,680 INFO L899 garLoopResultBuilder]: For program point L130(lines 130 632) no Hoare annotation was computed. [2023-12-15 17:29:04,680 INFO L899 garLoopResultBuilder]: For program point $Ultimate##209(line 405) no Hoare annotation was computed. [2023-12-15 17:29:04,680 INFO L899 garLoopResultBuilder]: For program point L395(lines 395 426) no Hoare annotation was computed. [2023-12-15 17:29:04,680 INFO L899 garLoopResultBuilder]: For program point L362(line 362) no Hoare annotation was computed. [2023-12-15 17:29:04,680 INFO L899 garLoopResultBuilder]: For program point L362-2(line 362) no Hoare annotation was computed. [2023-12-15 17:29:04,680 INFO L899 garLoopResultBuilder]: For program point L362-4(lines 362 382) no Hoare annotation was computed. [2023-12-15 17:29:04,681 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 681) no Hoare annotation was computed. [2023-12-15 17:29:04,681 INFO L899 garLoopResultBuilder]: For program point L396(line 396) no Hoare annotation was computed. [2023-12-15 17:29:04,681 INFO L899 garLoopResultBuilder]: For program point L396-2(line 396) no Hoare annotation was computed. [2023-12-15 17:29:04,681 INFO L899 garLoopResultBuilder]: For program point L396-4(lines 396 402) no Hoare annotation was computed. [2023-12-15 17:29:04,681 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_switch_1_8561#1(lines 169 619) no Hoare annotation was computed. [2023-12-15 17:29:04,681 INFO L899 garLoopResultBuilder]: For program point L562(lines 562 566) no Hoare annotation was computed. [2023-12-15 17:29:04,681 INFO L899 garLoopResultBuilder]: For program point L529(lines 529 534) no Hoare annotation was computed. [2023-12-15 17:29:04,681 INFO L899 garLoopResultBuilder]: For program point L364(line 364) no Hoare annotation was computed. [2023-12-15 17:29:04,681 INFO L899 garLoopResultBuilder]: For program point L331-1(line 331) no Hoare annotation was computed. [2023-12-15 17:29:04,682 INFO L899 garLoopResultBuilder]: For program point L364-2(line 364) no Hoare annotation was computed. [2023-12-15 17:29:04,682 INFO L899 garLoopResultBuilder]: For program point L331-3(lines 331 340) no Hoare annotation was computed. [2023-12-15 17:29:04,682 INFO L899 garLoopResultBuilder]: For program point L364-4(lines 364 368) no Hoare annotation was computed. [2023-12-15 17:29:04,682 INFO L899 garLoopResultBuilder]: For program point L199(lines 199 609) no Hoare annotation was computed. [2023-12-15 17:29:04,682 INFO L899 garLoopResultBuilder]: For program point L166(lines 166 620) no Hoare annotation was computed. [2023-12-15 17:29:04,682 INFO L899 garLoopResultBuilder]: For program point L331-5(lines 331 340) no Hoare annotation was computed. [2023-12-15 17:29:04,682 INFO L899 garLoopResultBuilder]: For program point L364-6(lines 362 380) no Hoare annotation was computed. [2023-12-15 17:29:04,682 INFO L899 garLoopResultBuilder]: For program point L133(lines 133 631) no Hoare annotation was computed. [2023-12-15 17:29:04,682 INFO L899 garLoopResultBuilder]: For program point L497(lines 497 501) no Hoare annotation was computed. [2023-12-15 17:29:04,685 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] [2023-12-15 17:29:04,687 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-15 17:29:04,700 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 05:29:04 BoogieIcfgContainer [2023-12-15 17:29:04,700 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-15 17:29:04,701 INFO L158 Benchmark]: Toolchain (without parser) took 8684.24ms. Allocated memory was 337.6MB in the beginning and 524.3MB in the end (delta: 186.6MB). Free memory was 289.5MB in the beginning and 459.6MB in the end (delta: -170.1MB). Peak memory consumption was 245.1MB. Max. memory is 8.0GB. [2023-12-15 17:29:04,701 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 206.6MB. Free memory is still 154.5MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-15 17:29:04,702 INFO L158 Benchmark]: CACSL2BoogieTranslator took 342.71ms. Allocated memory is still 337.6MB. Free memory was 289.1MB in the beginning and 272.7MB in the end (delta: 16.4MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2023-12-15 17:29:04,702 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.25ms. Allocated memory is still 337.6MB. Free memory was 272.7MB in the beginning and 269.6MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-15 17:29:04,702 INFO L158 Benchmark]: Boogie Preprocessor took 93.44ms. Allocated memory is still 337.6MB. Free memory was 269.6MB in the beginning and 266.1MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-15 17:29:04,702 INFO L158 Benchmark]: RCFGBuilder took 742.69ms. Allocated memory is still 337.6MB. Free memory was 266.1MB in the beginning and 297.3MB in the end (delta: -31.3MB). Peak memory consumption was 43.0MB. Max. memory is 8.0GB. [2023-12-15 17:29:04,703 INFO L158 Benchmark]: TraceAbstraction took 7436.09ms. Allocated memory was 337.6MB in the beginning and 524.3MB in the end (delta: 186.6MB). Free memory was 296.8MB in the beginning and 459.6MB in the end (delta: -162.8MB). Peak memory consumption was 251.4MB. Max. memory is 8.0GB. [2023-12-15 17:29:04,706 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 206.6MB. Free memory is still 154.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 342.71ms. Allocated memory is still 337.6MB. Free memory was 289.1MB in the beginning and 272.7MB in the end (delta: 16.4MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 64.25ms. Allocated memory is still 337.6MB. Free memory was 272.7MB in the beginning and 269.6MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 93.44ms. Allocated memory is still 337.6MB. Free memory was 269.6MB in the beginning and 266.1MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 742.69ms. Allocated memory is still 337.6MB. Free memory was 266.1MB in the beginning and 297.3MB in the end (delta: -31.3MB). Peak memory consumption was 43.0MB. Max. memory is 8.0GB. * TraceAbstraction took 7436.09ms. Allocated memory was 337.6MB in the beginning and 524.3MB in the end (delta: 186.6MB). Free memory was 296.8MB in the beginning and 459.6MB in the end (delta: -162.8MB). Peak memory consumption was 251.4MB. 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 - PositiveResult [Line: 681]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 150 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 7.4s, OverallIterations: 20, TraceHistogramMax: 19, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 3.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2096 SdHoareTripleChecker+Valid, 2.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2096 mSDsluCounter, 8761 SdHoareTripleChecker+Invalid, 1.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3766 mSDsCounter, 487 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2614 IncrementalHoareTripleChecker+Invalid, 3101 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 487 mSolverCounterUnsat, 4995 mSDtfsCounter, 2614 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1960 GetRequests, 1925 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1981occurred in iteration=19, InterpolantAutomatonStates: 69, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 20 MinimizatonAttempts, 778 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 46 NumberOfFragments, 102 HoareAnnotationTreeSize, 1 FormulaSimplifications, 416 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 1 FormulaSimplificationsInter, 379 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 5329 NumberOfCodeBlocks, 5329 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 6250 ConstructedInterpolants, 0 QuantifiedInterpolants, 8217 SizeOfPredicates, 2 NumberOfNonLiveVariables, 1483 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 24 InterpolantComputations, 18 PerfectInterpolantSequences, 24854/25004 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 109]: Loop Invariant Derived loop invariant: ((((((((((((((8464 == s__state) && (blastFlag == 0)) || ((2 == blastFlag) && (8560 == s__state))) || ((2 == blastFlag) && (s__state == 8512))) || ((2 == blastFlag) && !((0 == s__hit)))) || ((2 == blastFlag) && (8544 == s__state))) || (((s__state == 8656) && (2 == blastFlag)) && (s__s3__tmp__next_state___0 <= 8576))) || (((3 == blastFlag) && (s__state == 8672)) && (s__s3__tmp__next_state___0 <= 8576))) || (((3 == blastFlag) && (3 == s__s3__tmp__next_state___0)) && (8448 == s__state))) || ((3 == blastFlag) && !((0 == s__hit)))) || (s__state == 3)) || (((2 == blastFlag) && (s__s3__tmp__next_state___0 <= 8576)) && (s__state <= 8655))) || ((8496 == s__state) && (blastFlag == 1))) || ((s__state == 8528) && (2 == blastFlag))) RESULT: Ultimate proved your program to be correct! [2023-12-15 17:29:04,730 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...