/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf -i ../../../trunk/examples/svcomp/openssl-simplified/s3_srvr_12.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-d966a43 [2022-01-31 22:10:03,171 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-31 22:10:03,172 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-31 22:10:03,220 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-31 22:10:03,236 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-31 22:10:03,237 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-31 22:10:03,238 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-31 22:10:03,238 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-31 22:10:03,239 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-31 22:10:03,240 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-31 22:10:03,241 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-31 22:10:03,242 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-31 22:10:03,246 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-31 22:10:03,250 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-31 22:10:03,253 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-31 22:10:03,254 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-31 22:10:03,261 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-31 22:10:03,268 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-31 22:10:03,269 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-31 22:10:03,269 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-31 22:10:03,271 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf [2022-01-31 22:10:03,285 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-31 22:10:03,285 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-31 22:10:03,287 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-31 22:10:03,287 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-31 22:10:03,287 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-31 22:10:03,287 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-31 22:10:03,287 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-31 22:10:03,288 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-31 22:10:03,288 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-31 22:10:03,288 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-31 22:10:03,289 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-31 22:10:03,289 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-31 22:10:03,289 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-31 22:10:03,289 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-31 22:10:03,289 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-31 22:10:03,289 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-31 22:10:03,289 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-31 22:10:03,289 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-31 22:10:03,290 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 22:10:03,290 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-31 22:10:03,290 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2022-01-31 22:10:03,290 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-31 22:10:03,290 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2022-01-31 22:10:03,290 INFO L138 SettingsManager]: * Use separate solver for trace checks=false 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-31 22:10:03,474 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-31 22:10:03,492 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-31 22:10:03,494 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-31 22:10:03,495 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-31 22:10:03,495 INFO L275 PluginConnector]: CDTParser initialized [2022-01-31 22:10:03,496 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl-simplified/s3_srvr_12.cil.c [2022-01-31 22:10:03,549 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0dd9b16c3/00e3d67151094dada279b6c526716bea/FLAG481f7be3d [2022-01-31 22:10:03,906 INFO L306 CDTParser]: Found 1 translation units. [2022-01-31 22:10:03,907 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl-simplified/s3_srvr_12.cil.c [2022-01-31 22:10:03,915 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0dd9b16c3/00e3d67151094dada279b6c526716bea/FLAG481f7be3d [2022-01-31 22:10:03,925 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0dd9b16c3/00e3d67151094dada279b6c526716bea [2022-01-31 22:10:03,927 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-31 22:10:03,928 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-01-31 22:10:03,930 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-31 22:10:03,930 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-31 22:10:03,933 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-31 22:10:03,933 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 10:10:03" (1/1) ... [2022-01-31 22:10:03,934 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46d6e820 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:10:03, skipping insertion in model container [2022-01-31 22:10:03,934 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 10:10:03" (1/1) ... [2022-01-31 22:10:03,940 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-31 22:10:03,994 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-31 22:10:04,270 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/openssl-simplified/s3_srvr_12.cil.c[49672,49685] [2022-01-31 22:10:04,282 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 22:10:04,287 INFO L203 MainTranslator]: Completed pre-run [2022-01-31 22:10:04,329 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/openssl-simplified/s3_srvr_12.cil.c[49672,49685] [2022-01-31 22:10:04,341 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 22:10:04,351 INFO L208 MainTranslator]: Completed translation [2022-01-31 22:10:04,352 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:10:04 WrapperNode [2022-01-31 22:10:04,352 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-31 22:10:04,353 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-31 22:10:04,353 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-31 22:10:04,353 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-31 22:10:04,368 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:10:04" (1/1) ... [2022-01-31 22:10:04,368 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:10:04" (1/1) ... [2022-01-31 22:10:04,390 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:10:04" (1/1) ... [2022-01-31 22:10:04,390 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:10:04" (1/1) ... [2022-01-31 22:10:04,400 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:10:04" (1/1) ... [2022-01-31 22:10:04,425 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:10:04" (1/1) ... [2022-01-31 22:10:04,427 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:10:04" (1/1) ... [2022-01-31 22:10:04,430 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-31 22:10:04,431 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-31 22:10:04,431 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-31 22:10:04,431 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-31 22:10:04,448 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:10:04" (1/1) ... [2022-01-31 22:10:04,463 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 22:10:04,474 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 22:10:04,488 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-31 22:10:04,510 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-31 22:10:04,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-01-31 22:10:04,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-31 22:10:04,522 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-01-31 22:10:04,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-01-31 22:10:04,522 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-01-31 22:10:04,522 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-01-31 22:10:04,523 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-01-31 22:10:04,523 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-01-31 22:10:04,523 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-31 22:10:04,523 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-01-31 22:10:04,523 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-01-31 22:10:04,523 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-01-31 22:10:04,523 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-01-31 22:10:04,524 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-01-31 22:10:04,524 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-01-31 22:10:04,524 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-01-31 22:10:04,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-31 22:10:04,524 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-31 22:10:04,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-31 22:10:04,524 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-31 22:10:04,524 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-31 22:10:04,605 INFO L234 CfgBuilder]: Building ICFG [2022-01-31 22:10:04,606 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-31 22:10:04,716 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-31 22:10:05,150 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2022-01-31 22:10:05,151 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2022-01-31 22:10:05,156 INFO L275 CfgBuilder]: Performing block encoding [2022-01-31 22:10:05,162 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-31 22:10:05,163 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-31 22:10:05,164 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 10:10:05 BoogieIcfgContainer [2022-01-31 22:10:05,164 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-31 22:10:05,166 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-31 22:10:05,166 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-31 22:10:05,169 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-31 22:10:05,169 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 10:10:03" (1/3) ... [2022-01-31 22:10:05,169 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d706289 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 10:10:05, skipping insertion in model container [2022-01-31 22:10:05,169 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:10:04" (2/3) ... [2022-01-31 22:10:05,170 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d706289 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 10:10:05, skipping insertion in model container [2022-01-31 22:10:05,170 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 10:10:05" (3/3) ... [2022-01-31 22:10:05,171 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr_12.cil.c [2022-01-31 22:10:05,174 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-01-31 22:10:05,175 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-31 22:10:05,209 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-31 22:10:05,214 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=AcceleratedInterpolation, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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, mLoopAccelerationTechnique=JORDAN [2022-01-31 22:10:05,214 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-31 22:10:05,233 INFO L276 IsEmpty]: Start isEmpty. Operand has 176 states, 168 states have (on average 1.75) internal successors, (294), 169 states have internal predecessors, (294), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-01-31 22:10:05,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-01-31 22:10:05,245 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:10:05,245 INFO L514 BasicCegarLoop]: 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] [2022-01-31 22:10:05,246 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:10:05,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:10:05,253 INFO L85 PathProgramCache]: Analyzing trace with hash 1199187261, now seen corresponding path program 1 times [2022-01-31 22:10:05,259 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:10:05,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [890319959] [2022-01-31 22:10:05,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:10:05,271 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:10:05,309 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:10:05,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:05,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:10:05,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:05,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:10:05,500 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:10:05,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [890319959] [2022-01-31 22:10:05,501 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [890319959] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:10:05,501 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:10:05,502 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-31 22:10:05,502 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805429853] [2022-01-31 22:10:05,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:10:05,506 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-31 22:10:05,506 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:10:05,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-31 22:10:05,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-31 22:10:05,535 INFO L87 Difference]: Start difference. First operand has 176 states, 168 states have (on average 1.75) internal successors, (294), 169 states have internal predecessors, (294), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 6 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:06,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:10:06,116 INFO L93 Difference]: Finished difference Result 363 states and 624 transitions. [2022-01-31 22:10:06,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-31 22:10:06,118 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 34 [2022-01-31 22:10:06,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:10:06,126 INFO L225 Difference]: With dead ends: 363 [2022-01-31 22:10:06,127 INFO L226 Difference]: Without dead ends: 180 [2022-01-31 22:10:06,130 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-01-31 22:10:06,132 INFO L933 BasicCegarLoop]: 237 mSDtfsCounter, 862 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 430 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 862 SdHoareTripleChecker+Valid, 258 SdHoareTripleChecker+Invalid, 468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-31 22:10:06,133 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [862 Valid, 258 Invalid, 468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 430 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-31 22:10:06,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2022-01-31 22:10:06,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 178. [2022-01-31 22:10:06,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 173 states have (on average 1.6127167630057804) internal successors, (279), 173 states have internal predecessors, (279), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:06,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 283 transitions. [2022-01-31 22:10:06,181 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 283 transitions. Word has length 34 [2022-01-31 22:10:06,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:10:06,181 INFO L470 AbstractCegarLoop]: Abstraction has 178 states and 283 transitions. [2022-01-31 22:10:06,181 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:06,181 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 283 transitions. [2022-01-31 22:10:06,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-01-31 22:10:06,183 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:10:06,183 INFO L514 BasicCegarLoop]: 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] [2022-01-31 22:10:06,183 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-31 22:10:06,183 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:10:06,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:10:06,184 INFO L85 PathProgramCache]: Analyzing trace with hash -576860, now seen corresponding path program 1 times [2022-01-31 22:10:06,184 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:10:06,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [396505364] [2022-01-31 22:10:06,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:10:06,185 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:10:06,187 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:10:06,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:06,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:10:06,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:06,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:10:06,293 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:10:06,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [396505364] [2022-01-31 22:10:06,294 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [396505364] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:10:06,294 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:10:06,294 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-31 22:10:06,295 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344590071] [2022-01-31 22:10:06,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:10:06,296 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-31 22:10:06,296 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:10:06,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-31 22:10:06,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-31 22:10:06,297 INFO L87 Difference]: Start difference. First operand 178 states and 283 transitions. Second operand has 6 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:06,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:10:06,685 INFO L93 Difference]: Finished difference Result 364 states and 581 transitions. [2022-01-31 22:10:06,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-31 22:10:06,685 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 35 [2022-01-31 22:10:06,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:10:06,687 INFO L225 Difference]: With dead ends: 364 [2022-01-31 22:10:06,687 INFO L226 Difference]: Without dead ends: 200 [2022-01-31 22:10:06,688 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-01-31 22:10:06,690 INFO L933 BasicCegarLoop]: 180 mSDtfsCounter, 766 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 766 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-31 22:10:06,690 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [766 Valid, 197 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 355 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-31 22:10:06,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2022-01-31 22:10:06,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 200. [2022-01-31 22:10:06,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 195 states have (on average 1.5846153846153845) internal successors, (309), 195 states have internal predecessors, (309), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:06,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 313 transitions. [2022-01-31 22:10:06,713 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 313 transitions. Word has length 35 [2022-01-31 22:10:06,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:10:06,713 INFO L470 AbstractCegarLoop]: Abstraction has 200 states and 313 transitions. [2022-01-31 22:10:06,713 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:06,713 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 313 transitions. [2022-01-31 22:10:06,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-01-31 22:10:06,714 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:10:06,715 INFO L514 BasicCegarLoop]: 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] [2022-01-31 22:10:06,715 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-31 22:10:06,715 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:10:06,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:10:06,716 INFO L85 PathProgramCache]: Analyzing trace with hash 1037347800, now seen corresponding path program 1 times [2022-01-31 22:10:06,716 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:10:06,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [156113609] [2022-01-31 22:10:06,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:10:06,716 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:10:06,718 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:10:06,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:06,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:10:06,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:06,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:10:06,788 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:10:06,788 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [156113609] [2022-01-31 22:10:06,788 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [156113609] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:10:06,789 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:10:06,789 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-31 22:10:06,789 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419186853] [2022-01-31 22:10:06,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:10:06,789 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-31 22:10:06,790 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:10:06,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-31 22:10:06,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-31 22:10:06,791 INFO L87 Difference]: Start difference. First operand 200 states and 313 transitions. Second operand has 6 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:07,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:10:07,167 INFO L93 Difference]: Finished difference Result 393 states and 622 transitions. [2022-01-31 22:10:07,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-31 22:10:07,168 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 35 [2022-01-31 22:10:07,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:10:07,171 INFO L225 Difference]: With dead ends: 393 [2022-01-31 22:10:07,171 INFO L226 Difference]: Without dead ends: 207 [2022-01-31 22:10:07,175 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-01-31 22:10:07,182 INFO L933 BasicCegarLoop]: 181 mSDtfsCounter, 758 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 758 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-31 22:10:07,183 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [758 Valid, 198 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-31 22:10:07,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2022-01-31 22:10:07,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 207. [2022-01-31 22:10:07,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 202 states have (on average 1.5940594059405941) internal successors, (322), 202 states have internal predecessors, (322), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:07,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 326 transitions. [2022-01-31 22:10:07,222 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 326 transitions. Word has length 35 [2022-01-31 22:10:07,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:10:07,222 INFO L470 AbstractCegarLoop]: Abstraction has 207 states and 326 transitions. [2022-01-31 22:10:07,222 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:07,223 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 326 transitions. [2022-01-31 22:10:07,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-01-31 22:10:07,235 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:10:07,235 INFO L514 BasicCegarLoop]: 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] [2022-01-31 22:10:07,235 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-31 22:10:07,236 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:10:07,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:10:07,236 INFO L85 PathProgramCache]: Analyzing trace with hash -1441132167, now seen corresponding path program 1 times [2022-01-31 22:10:07,237 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:10:07,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1549747179] [2022-01-31 22:10:07,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:10:07,238 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:10:07,240 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:10:07,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:07,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:10:07,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:07,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:10:07,302 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:10:07,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1549747179] [2022-01-31 22:10:07,302 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1549747179] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:10:07,303 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:10:07,303 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-31 22:10:07,303 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767215182] [2022-01-31 22:10:07,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:10:07,303 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-31 22:10:07,303 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:10:07,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-31 22:10:07,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-31 22:10:07,304 INFO L87 Difference]: Start difference. First operand 207 states and 326 transitions. Second operand has 6 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:07,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:10:07,660 INFO L93 Difference]: Finished difference Result 402 states and 636 transitions. [2022-01-31 22:10:07,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-31 22:10:07,661 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 35 [2022-01-31 22:10:07,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:10:07,662 INFO L225 Difference]: With dead ends: 402 [2022-01-31 22:10:07,662 INFO L226 Difference]: Without dead ends: 209 [2022-01-31 22:10:07,663 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-01-31 22:10:07,664 INFO L933 BasicCegarLoop]: 181 mSDtfsCounter, 759 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 759 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-31 22:10:07,664 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [759 Valid, 198 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-31 22:10:07,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2022-01-31 22:10:07,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 207. [2022-01-31 22:10:07,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 202 states have (on average 1.5891089108910892) internal successors, (321), 202 states have internal predecessors, (321), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:07,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 325 transitions. [2022-01-31 22:10:07,689 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 325 transitions. Word has length 35 [2022-01-31 22:10:07,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:10:07,689 INFO L470 AbstractCegarLoop]: Abstraction has 207 states and 325 transitions. [2022-01-31 22:10:07,689 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:07,689 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 325 transitions. [2022-01-31 22:10:07,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-01-31 22:10:07,690 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:10:07,690 INFO L514 BasicCegarLoop]: 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] [2022-01-31 22:10:07,690 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-31 22:10:07,690 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:10:07,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:10:07,691 INFO L85 PathProgramCache]: Analyzing trace with hash 1028210496, now seen corresponding path program 1 times [2022-01-31 22:10:07,691 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:10:07,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1865884515] [2022-01-31 22:10:07,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:10:07,692 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:10:07,693 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:10:07,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:07,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:10:07,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:07,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:10:07,761 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:10:07,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1865884515] [2022-01-31 22:10:07,762 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1865884515] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:10:07,762 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:10:07,762 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-31 22:10:07,762 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704692768] [2022-01-31 22:10:07,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:10:07,764 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-31 22:10:07,764 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:10:07,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-31 22:10:07,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-31 22:10:07,765 INFO L87 Difference]: Start difference. First operand 207 states and 325 transitions. Second operand has 6 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:08,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:10:08,112 INFO L93 Difference]: Finished difference Result 410 states and 644 transitions. [2022-01-31 22:10:08,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-31 22:10:08,113 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 36 [2022-01-31 22:10:08,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:10:08,115 INFO L225 Difference]: With dead ends: 410 [2022-01-31 22:10:08,115 INFO L226 Difference]: Without dead ends: 217 [2022-01-31 22:10:08,116 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-01-31 22:10:08,120 INFO L933 BasicCegarLoop]: 180 mSDtfsCounter, 767 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 767 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-31 22:10:08,120 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [767 Valid, 197 Invalid, 389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-31 22:10:08,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2022-01-31 22:10:08,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 207. [2022-01-31 22:10:08,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 202 states have (on average 1.5792079207920793) internal successors, (319), 202 states have internal predecessors, (319), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:08,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 323 transitions. [2022-01-31 22:10:08,170 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 323 transitions. Word has length 36 [2022-01-31 22:10:08,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:10:08,171 INFO L470 AbstractCegarLoop]: Abstraction has 207 states and 323 transitions. [2022-01-31 22:10:08,171 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:08,171 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 323 transitions. [2022-01-31 22:10:08,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-01-31 22:10:08,173 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:10:08,173 INFO L514 BasicCegarLoop]: 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] [2022-01-31 22:10:08,173 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-31 22:10:08,174 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:10:08,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:10:08,174 INFO L85 PathProgramCache]: Analyzing trace with hash -2097728708, now seen corresponding path program 1 times [2022-01-31 22:10:08,174 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:10:08,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [812019538] [2022-01-31 22:10:08,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:10:08,175 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:10:08,176 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:10:08,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:08,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:10:08,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:08,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:10:08,231 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:10:08,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [812019538] [2022-01-31 22:10:08,231 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [812019538] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:10:08,231 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:10:08,231 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-31 22:10:08,232 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143062825] [2022-01-31 22:10:08,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:10:08,232 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-31 22:10:08,232 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:10:08,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-31 22:10:08,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-31 22:10:08,233 INFO L87 Difference]: Start difference. First operand 207 states and 323 transitions. Second operand has 6 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:08,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:10:08,580 INFO L93 Difference]: Finished difference Result 410 states and 640 transitions. [2022-01-31 22:10:08,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-31 22:10:08,580 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 37 [2022-01-31 22:10:08,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:10:08,581 INFO L225 Difference]: With dead ends: 410 [2022-01-31 22:10:08,581 INFO L226 Difference]: Without dead ends: 217 [2022-01-31 22:10:08,582 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-01-31 22:10:08,583 INFO L933 BasicCegarLoop]: 181 mSDtfsCounter, 767 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 767 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-31 22:10:08,583 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [767 Valid, 198 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-31 22:10:08,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2022-01-31 22:10:08,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 207. [2022-01-31 22:10:08,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 202 states have (on average 1.5693069306930694) internal successors, (317), 202 states have internal predecessors, (317), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:08,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 321 transitions. [2022-01-31 22:10:08,604 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 321 transitions. Word has length 37 [2022-01-31 22:10:08,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:10:08,604 INFO L470 AbstractCegarLoop]: Abstraction has 207 states and 321 transitions. [2022-01-31 22:10:08,604 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:08,604 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 321 transitions. [2022-01-31 22:10:08,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-01-31 22:10:08,605 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:10:08,605 INFO L514 BasicCegarLoop]: 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] [2022-01-31 22:10:08,605 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-31 22:10:08,605 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:10:08,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:10:08,606 INFO L85 PathProgramCache]: Analyzing trace with hash -1553278138, now seen corresponding path program 1 times [2022-01-31 22:10:08,606 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:10:08,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [973826863] [2022-01-31 22:10:08,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:10:08,607 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:10:08,608 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:10:08,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:08,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:10:08,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:08,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:10:08,655 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:10:08,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [973826863] [2022-01-31 22:10:08,655 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [973826863] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:10:08,655 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:10:08,655 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 22:10:08,655 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590560994] [2022-01-31 22:10:08,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:10:08,656 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 22:10:08,656 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:10:08,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 22:10:08,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:10:08,656 INFO L87 Difference]: Start difference. First operand 207 states and 321 transitions. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:08,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:10:08,996 INFO L93 Difference]: Finished difference Result 443 states and 687 transitions. [2022-01-31 22:10:08,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:10:08,996 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 38 [2022-01-31 22:10:08,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:10:08,997 INFO L225 Difference]: With dead ends: 443 [2022-01-31 22:10:08,998 INFO L226 Difference]: Without dead ends: 250 [2022-01-31 22:10:08,998 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-01-31 22:10:09,001 INFO L933 BasicCegarLoop]: 183 mSDtfsCounter, 482 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 482 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-31 22:10:09,001 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [482 Valid, 195 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 370 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-31 22:10:09,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2022-01-31 22:10:09,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 214. [2022-01-31 22:10:09,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 209 states have (on average 1.5645933014354068) internal successors, (327), 209 states have internal predecessors, (327), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:09,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 331 transitions. [2022-01-31 22:10:09,026 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 331 transitions. Word has length 38 [2022-01-31 22:10:09,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:10:09,027 INFO L470 AbstractCegarLoop]: Abstraction has 214 states and 331 transitions. [2022-01-31 22:10:09,027 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:09,028 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 331 transitions. [2022-01-31 22:10:09,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-01-31 22:10:09,029 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:10:09,029 INFO L514 BasicCegarLoop]: 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] [2022-01-31 22:10:09,029 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-31 22:10:09,029 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:10:09,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:10:09,030 INFO L85 PathProgramCache]: Analyzing trace with hash 839158341, now seen corresponding path program 1 times [2022-01-31 22:10:09,030 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:10:09,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [930098013] [2022-01-31 22:10:09,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:10:09,034 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:10:09,036 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:10:09,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:09,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:10:09,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:09,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:10:09,100 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:10:09,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [930098013] [2022-01-31 22:10:09,100 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [930098013] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:10:09,100 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:10:09,100 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-31 22:10:09,101 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377928196] [2022-01-31 22:10:09,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:10:09,103 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-31 22:10:09,103 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:10:09,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-31 22:10:09,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-31 22:10:09,106 INFO L87 Difference]: Start difference. First operand 214 states and 331 transitions. Second operand has 6 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:09,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:10:09,489 INFO L93 Difference]: Finished difference Result 424 states and 656 transitions. [2022-01-31 22:10:09,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-31 22:10:09,490 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 38 [2022-01-31 22:10:09,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:10:09,492 INFO L225 Difference]: With dead ends: 424 [2022-01-31 22:10:09,492 INFO L226 Difference]: Without dead ends: 224 [2022-01-31 22:10:09,492 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-01-31 22:10:09,493 INFO L933 BasicCegarLoop]: 182 mSDtfsCounter, 767 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 767 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-31 22:10:09,493 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [767 Valid, 199 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-31 22:10:09,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2022-01-31 22:10:09,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 214. [2022-01-31 22:10:09,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 209 states have (on average 1.555023923444976) internal successors, (325), 209 states have internal predecessors, (325), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:09,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 329 transitions. [2022-01-31 22:10:09,525 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 329 transitions. Word has length 38 [2022-01-31 22:10:09,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:10:09,526 INFO L470 AbstractCegarLoop]: Abstraction has 214 states and 329 transitions. [2022-01-31 22:10:09,527 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:09,527 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 329 transitions. [2022-01-31 22:10:09,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-31 22:10:09,527 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:10:09,527 INFO L514 BasicCegarLoop]: 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] [2022-01-31 22:10:09,528 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-31 22:10:09,528 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:10:09,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:10:09,528 INFO L85 PathProgramCache]: Analyzing trace with hash -1549869087, now seen corresponding path program 1 times [2022-01-31 22:10:09,529 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:10:09,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1553034675] [2022-01-31 22:10:09,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:10:09,529 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:10:09,531 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:10:09,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:09,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:10:09,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:09,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:10:09,589 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:10:09,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1553034675] [2022-01-31 22:10:09,589 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1553034675] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:10:09,589 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:10:09,589 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-31 22:10:09,589 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554339310] [2022-01-31 22:10:09,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:10:09,590 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-31 22:10:09,590 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:10:09,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-31 22:10:09,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-31 22:10:09,590 INFO L87 Difference]: Start difference. First operand 214 states and 329 transitions. Second operand has 6 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:09,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:10:09,932 INFO L93 Difference]: Finished difference Result 424 states and 652 transitions. [2022-01-31 22:10:09,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-31 22:10:09,935 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 39 [2022-01-31 22:10:09,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:10:09,936 INFO L225 Difference]: With dead ends: 424 [2022-01-31 22:10:09,937 INFO L226 Difference]: Without dead ends: 224 [2022-01-31 22:10:09,937 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-01-31 22:10:09,938 INFO L933 BasicCegarLoop]: 183 mSDtfsCounter, 767 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 767 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-31 22:10:09,938 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [767 Valid, 200 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-31 22:10:09,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2022-01-31 22:10:09,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 214. [2022-01-31 22:10:09,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 209 states have (on average 1.5454545454545454) internal successors, (323), 209 states have internal predecessors, (323), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:09,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 327 transitions. [2022-01-31 22:10:09,964 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 327 transitions. Word has length 39 [2022-01-31 22:10:09,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:10:09,964 INFO L470 AbstractCegarLoop]: Abstraction has 214 states and 327 transitions. [2022-01-31 22:10:09,964 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:09,964 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 327 transitions. [2022-01-31 22:10:09,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-31 22:10:09,965 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:10:09,965 INFO L514 BasicCegarLoop]: 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] [2022-01-31 22:10:09,965 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-31 22:10:09,965 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:10:09,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:10:09,966 INFO L85 PathProgramCache]: Analyzing trace with hash 1904631677, now seen corresponding path program 1 times [2022-01-31 22:10:09,966 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:10:09,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1647721760] [2022-01-31 22:10:09,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:10:09,966 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:10:09,968 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:10:09,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:10,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:10:10,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:10,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:10:10,006 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:10:10,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1647721760] [2022-01-31 22:10:10,006 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1647721760] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:10:10,006 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:10:10,006 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-31 22:10:10,006 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137263243] [2022-01-31 22:10:10,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:10:10,006 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-31 22:10:10,007 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:10:10,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-31 22:10:10,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-31 22:10:10,007 INFO L87 Difference]: Start difference. First operand 214 states and 327 transitions. Second operand has 6 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:10,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:10:10,366 INFO L93 Difference]: Finished difference Result 419 states and 644 transitions. [2022-01-31 22:10:10,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-31 22:10:10,366 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 39 [2022-01-31 22:10:10,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:10:10,367 INFO L225 Difference]: With dead ends: 419 [2022-01-31 22:10:10,367 INFO L226 Difference]: Without dead ends: 219 [2022-01-31 22:10:10,368 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-01-31 22:10:10,369 INFO L933 BasicCegarLoop]: 187 mSDtfsCounter, 754 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 754 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-31 22:10:10,369 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [754 Valid, 204 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 351 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-31 22:10:10,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2022-01-31 22:10:10,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 216. [2022-01-31 22:10:10,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 211 states have (on average 1.5450236966824644) internal successors, (326), 211 states have internal predecessors, (326), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:10,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 330 transitions. [2022-01-31 22:10:10,396 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 330 transitions. Word has length 39 [2022-01-31 22:10:10,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:10:10,396 INFO L470 AbstractCegarLoop]: Abstraction has 216 states and 330 transitions. [2022-01-31 22:10:10,396 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:10,396 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 330 transitions. [2022-01-31 22:10:10,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-01-31 22:10:10,397 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:10:10,397 INFO L514 BasicCegarLoop]: 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] [2022-01-31 22:10:10,397 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-31 22:10:10,397 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:10:10,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:10:10,398 INFO L85 PathProgramCache]: Analyzing trace with hash -827017343, now seen corresponding path program 1 times [2022-01-31 22:10:10,398 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:10:10,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [886431488] [2022-01-31 22:10:10,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:10:10,398 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:10:10,399 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:10:10,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:10,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:10:10,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:10,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:10:10,437 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:10:10,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [886431488] [2022-01-31 22:10:10,437 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [886431488] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:10:10,437 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:10:10,437 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-31 22:10:10,437 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216869943] [2022-01-31 22:10:10,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:10:10,438 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-31 22:10:10,438 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:10:10,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-31 22:10:10,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-31 22:10:10,438 INFO L87 Difference]: Start difference. First operand 216 states and 330 transitions. Second operand has 6 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:10,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:10:10,782 INFO L93 Difference]: Finished difference Result 444 states and 678 transitions. [2022-01-31 22:10:10,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-31 22:10:10,782 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 40 [2022-01-31 22:10:10,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:10:10,784 INFO L225 Difference]: With dead ends: 444 [2022-01-31 22:10:10,784 INFO L226 Difference]: Without dead ends: 242 [2022-01-31 22:10:10,785 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-01-31 22:10:10,785 INFO L933 BasicCegarLoop]: 188 mSDtfsCounter, 754 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 754 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-31 22:10:10,785 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [754 Valid, 205 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-31 22:10:10,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2022-01-31 22:10:10,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 239. [2022-01-31 22:10:10,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 234 states have (on average 1.5256410256410255) internal successors, (357), 234 states have internal predecessors, (357), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:10,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 361 transitions. [2022-01-31 22:10:10,818 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 361 transitions. Word has length 40 [2022-01-31 22:10:10,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:10:10,818 INFO L470 AbstractCegarLoop]: Abstraction has 239 states and 361 transitions. [2022-01-31 22:10:10,818 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:10,818 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 361 transitions. [2022-01-31 22:10:10,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-01-31 22:10:10,819 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:10:10,819 INFO L514 BasicCegarLoop]: 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] [2022-01-31 22:10:10,819 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-31 22:10:10,819 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:10:10,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:10:10,820 INFO L85 PathProgramCache]: Analyzing trace with hash 341017417, now seen corresponding path program 1 times [2022-01-31 22:10:10,820 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:10:10,820 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1287841028] [2022-01-31 22:10:10,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:10:10,820 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:10:10,821 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:10:10,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:10,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:10:10,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:10,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:10:10,858 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:10:10,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1287841028] [2022-01-31 22:10:10,858 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1287841028] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:10:10,859 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:10:10,859 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-31 22:10:10,859 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84681424] [2022-01-31 22:10:10,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:10:10,859 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-31 22:10:10,859 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:10:10,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-31 22:10:10,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-31 22:10:10,860 INFO L87 Difference]: Start difference. First operand 239 states and 361 transitions. Second operand has 6 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:11,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:10:11,196 INFO L93 Difference]: Finished difference Result 493 states and 745 transitions. [2022-01-31 22:10:11,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-31 22:10:11,196 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 43 [2022-01-31 22:10:11,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:10:11,199 INFO L225 Difference]: With dead ends: 493 [2022-01-31 22:10:11,199 INFO L226 Difference]: Without dead ends: 268 [2022-01-31 22:10:11,200 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-01-31 22:10:11,200 INFO L933 BasicCegarLoop]: 203 mSDtfsCounter, 732 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 369 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 732 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-31 22:10:11,201 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [732 Valid, 220 Invalid, 410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 369 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-31 22:10:11,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2022-01-31 22:10:11,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 264. [2022-01-31 22:10:11,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 259 states have (on average 1.5096525096525097) internal successors, (391), 259 states have internal predecessors, (391), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:11,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 395 transitions. [2022-01-31 22:10:11,250 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 395 transitions. Word has length 43 [2022-01-31 22:10:11,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:10:11,251 INFO L470 AbstractCegarLoop]: Abstraction has 264 states and 395 transitions. [2022-01-31 22:10:11,251 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:11,251 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 395 transitions. [2022-01-31 22:10:11,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-01-31 22:10:11,251 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:10:11,252 INFO L514 BasicCegarLoop]: 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] [2022-01-31 22:10:11,252 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-31 22:10:11,252 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:10:11,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:10:11,252 INFO L85 PathProgramCache]: Analyzing trace with hash -1564538053, now seen corresponding path program 1 times [2022-01-31 22:10:11,252 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:10:11,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [891700065] [2022-01-31 22:10:11,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:10:11,253 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:10:11,254 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:10:11,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:11,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:10:11,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:11,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:10:11,299 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:10:11,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [891700065] [2022-01-31 22:10:11,299 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [891700065] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:10:11,299 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:10:11,299 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-31 22:10:11,299 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200740858] [2022-01-31 22:10:11,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:10:11,299 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-31 22:10:11,299 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:10:11,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-31 22:10:11,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-31 22:10:11,300 INFO L87 Difference]: Start difference. First operand 264 states and 395 transitions. Second operand has 6 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:11,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:10:11,667 INFO L93 Difference]: Finished difference Result 547 states and 818 transitions. [2022-01-31 22:10:11,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-31 22:10:11,668 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 43 [2022-01-31 22:10:11,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:10:11,669 INFO L225 Difference]: With dead ends: 547 [2022-01-31 22:10:11,669 INFO L226 Difference]: Without dead ends: 297 [2022-01-31 22:10:11,670 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-01-31 22:10:11,671 INFO L933 BasicCegarLoop]: 189 mSDtfsCounter, 768 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 768 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-31 22:10:11,671 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [768 Valid, 206 Invalid, 404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 360 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-31 22:10:11,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2022-01-31 22:10:11,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 292. [2022-01-31 22:10:11,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 287 states have (on average 1.494773519163763) internal successors, (429), 287 states have internal predecessors, (429), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:11,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 433 transitions. [2022-01-31 22:10:11,714 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 433 transitions. Word has length 43 [2022-01-31 22:10:11,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:10:11,714 INFO L470 AbstractCegarLoop]: Abstraction has 292 states and 433 transitions. [2022-01-31 22:10:11,715 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:11,715 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 433 transitions. [2022-01-31 22:10:11,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-01-31 22:10:11,715 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:10:11,715 INFO L514 BasicCegarLoop]: 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, 1] [2022-01-31 22:10:11,715 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-31 22:10:11,716 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:10:11,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:10:11,716 INFO L85 PathProgramCache]: Analyzing trace with hash -570717011, now seen corresponding path program 1 times [2022-01-31 22:10:11,716 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:10:11,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [236604567] [2022-01-31 22:10:11,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:10:11,717 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:10:11,718 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:10:11,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:11,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:10:11,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:11,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:10:11,768 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:10:11,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [236604567] [2022-01-31 22:10:11,768 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [236604567] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:10:11,769 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:10:11,769 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-31 22:10:11,769 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326685533] [2022-01-31 22:10:11,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:10:11,769 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-31 22:10:11,769 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:10:11,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-31 22:10:11,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-31 22:10:11,770 INFO L87 Difference]: Start difference. First operand 292 states and 433 transitions. Second operand has 6 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:12,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:10:12,104 INFO L93 Difference]: Finished difference Result 575 states and 856 transitions. [2022-01-31 22:10:12,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-31 22:10:12,105 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 44 [2022-01-31 22:10:12,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:10:12,106 INFO L225 Difference]: With dead ends: 575 [2022-01-31 22:10:12,106 INFO L226 Difference]: Without dead ends: 297 [2022-01-31 22:10:12,107 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-01-31 22:10:12,108 INFO L933 BasicCegarLoop]: 189 mSDtfsCounter, 761 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 761 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 22:10:12,108 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [761 Valid, 206 Invalid, 400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 355 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-31 22:10:12,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2022-01-31 22:10:12,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 293. [2022-01-31 22:10:12,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 288 states have (on average 1.4895833333333333) internal successors, (429), 288 states have internal predecessors, (429), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:12,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 433 transitions. [2022-01-31 22:10:12,157 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 433 transitions. Word has length 44 [2022-01-31 22:10:12,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:10:12,157 INFO L470 AbstractCegarLoop]: Abstraction has 293 states and 433 transitions. [2022-01-31 22:10:12,157 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:12,157 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 433 transitions. [2022-01-31 22:10:12,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-01-31 22:10:12,158 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:10:12,158 INFO L514 BasicCegarLoop]: 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, 1] [2022-01-31 22:10:12,158 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-31 22:10:12,158 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:10:12,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:10:12,158 INFO L85 PathProgramCache]: Analyzing trace with hash 1737605119, now seen corresponding path program 1 times [2022-01-31 22:10:12,159 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:10:12,159 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1071833730] [2022-01-31 22:10:12,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:10:12,159 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:10:12,160 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:10:12,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:12,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:10:12,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:12,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:10:12,197 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:10:12,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1071833730] [2022-01-31 22:10:12,197 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1071833730] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:10:12,197 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:10:12,197 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-31 22:10:12,197 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296819902] [2022-01-31 22:10:12,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:10:12,197 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-31 22:10:12,197 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:10:12,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-31 22:10:12,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-31 22:10:12,198 INFO L87 Difference]: Start difference. First operand 293 states and 433 transitions. Second operand has 6 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:12,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:10:12,556 INFO L93 Difference]: Finished difference Result 579 states and 859 transitions. [2022-01-31 22:10:12,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-31 22:10:12,556 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 44 [2022-01-31 22:10:12,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:10:12,558 INFO L225 Difference]: With dead ends: 579 [2022-01-31 22:10:12,558 INFO L226 Difference]: Without dead ends: 300 [2022-01-31 22:10:12,560 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-01-31 22:10:12,561 INFO L933 BasicCegarLoop]: 191 mSDtfsCounter, 763 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 763 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-31 22:10:12,561 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [763 Valid, 208 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 359 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-31 22:10:12,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2022-01-31 22:10:12,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 295. [2022-01-31 22:10:12,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 290 states have (on average 1.4896551724137932) internal successors, (432), 290 states have internal predecessors, (432), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:12,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 436 transitions. [2022-01-31 22:10:12,611 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 436 transitions. Word has length 44 [2022-01-31 22:10:12,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:10:12,612 INFO L470 AbstractCegarLoop]: Abstraction has 295 states and 436 transitions. [2022-01-31 22:10:12,612 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:12,613 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 436 transitions. [2022-01-31 22:10:12,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-01-31 22:10:12,613 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:10:12,613 INFO L514 BasicCegarLoop]: 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, 1, 1] [2022-01-31 22:10:12,613 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-31 22:10:12,613 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:10:12,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:10:12,614 INFO L85 PathProgramCache]: Analyzing trace with hash -970621315, now seen corresponding path program 1 times [2022-01-31 22:10:12,615 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:10:12,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1510917014] [2022-01-31 22:10:12,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:10:12,616 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:10:12,617 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:10:12,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:12,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:10:12,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:12,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:10:12,674 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:10:12,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1510917014] [2022-01-31 22:10:12,675 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1510917014] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:10:12,675 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:10:12,675 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-31 22:10:12,675 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334318801] [2022-01-31 22:10:12,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:10:12,675 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-31 22:10:12,675 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:10:12,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-31 22:10:12,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-31 22:10:12,676 INFO L87 Difference]: Start difference. First operand 295 states and 436 transitions. Second operand has 6 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:13,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:10:13,092 INFO L93 Difference]: Finished difference Result 615 states and 910 transitions. [2022-01-31 22:10:13,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-31 22:10:13,093 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 45 [2022-01-31 22:10:13,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:10:13,094 INFO L225 Difference]: With dead ends: 615 [2022-01-31 22:10:13,094 INFO L226 Difference]: Without dead ends: 334 [2022-01-31 22:10:13,095 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-01-31 22:10:13,096 INFO L933 BasicCegarLoop]: 192 mSDtfsCounter, 785 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 367 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 785 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-31 22:10:13,096 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [785 Valid, 209 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 367 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-31 22:10:13,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2022-01-31 22:10:13,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 325. [2022-01-31 22:10:13,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 320 states have (on average 1.475) internal successors, (472), 320 states have internal predecessors, (472), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:13,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 476 transitions. [2022-01-31 22:10:13,156 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 476 transitions. Word has length 45 [2022-01-31 22:10:13,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:10:13,156 INFO L470 AbstractCegarLoop]: Abstraction has 325 states and 476 transitions. [2022-01-31 22:10:13,156 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:13,156 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 476 transitions. [2022-01-31 22:10:13,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-01-31 22:10:13,157 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:10:13,157 INFO L514 BasicCegarLoop]: 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, 1, 1, 1] [2022-01-31 22:10:13,157 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-31 22:10:13,157 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:10:13,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:10:13,158 INFO L85 PathProgramCache]: Analyzing trace with hash -957955839, now seen corresponding path program 1 times [2022-01-31 22:10:13,158 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:10:13,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [500426346] [2022-01-31 22:10:13,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:10:13,158 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:10:13,159 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:10:13,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:13,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:10:13,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:13,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:10:13,194 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:10:13,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [500426346] [2022-01-31 22:10:13,194 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [500426346] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:10:13,194 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:10:13,194 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-31 22:10:13,194 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126393616] [2022-01-31 22:10:13,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:10:13,194 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-31 22:10:13,194 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:10:13,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-31 22:10:13,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-31 22:10:13,195 INFO L87 Difference]: Start difference. First operand 325 states and 476 transitions. Second operand has 6 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:13,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:10:13,600 INFO L93 Difference]: Finished difference Result 649 states and 957 transitions. [2022-01-31 22:10:13,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-31 22:10:13,600 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 46 [2022-01-31 22:10:13,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:10:13,602 INFO L225 Difference]: With dead ends: 649 [2022-01-31 22:10:13,602 INFO L226 Difference]: Without dead ends: 338 [2022-01-31 22:10:13,603 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-01-31 22:10:13,603 INFO L933 BasicCegarLoop]: 192 mSDtfsCounter, 788 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 367 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 788 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-31 22:10:13,604 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [788 Valid, 209 Invalid, 420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 367 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-31 22:10:13,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2022-01-31 22:10:13,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 329. [2022-01-31 22:10:13,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 324 states have (on average 1.478395061728395) internal successors, (479), 324 states have internal predecessors, (479), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:13,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 483 transitions. [2022-01-31 22:10:13,682 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 483 transitions. Word has length 46 [2022-01-31 22:10:13,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:10:13,682 INFO L470 AbstractCegarLoop]: Abstraction has 329 states and 483 transitions. [2022-01-31 22:10:13,682 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:13,682 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 483 transitions. [2022-01-31 22:10:13,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-01-31 22:10:13,683 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:10:13,683 INFO L514 BasicCegarLoop]: 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, 1, 1, 1, 1, 1] [2022-01-31 22:10:13,683 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-31 22:10:13,683 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:10:13,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:10:13,684 INFO L85 PathProgramCache]: Analyzing trace with hash 14351293, now seen corresponding path program 1 times [2022-01-31 22:10:13,684 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:10:13,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [656791708] [2022-01-31 22:10:13,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:10:13,684 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:10:13,685 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:10:13,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:13,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:10:13,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:13,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:10:13,727 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:10:13,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [656791708] [2022-01-31 22:10:13,728 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [656791708] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:10:13,728 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:10:13,728 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-31 22:10:13,728 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475207107] [2022-01-31 22:10:13,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:10:13,728 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-31 22:10:13,728 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:10:13,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-31 22:10:13,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-31 22:10:13,729 INFO L87 Difference]: Start difference. First operand 329 states and 483 transitions. Second operand has 6 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:14,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:10:14,153 INFO L93 Difference]: Finished difference Result 686 states and 1008 transitions. [2022-01-31 22:10:14,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-31 22:10:14,153 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 48 [2022-01-31 22:10:14,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:10:14,155 INFO L225 Difference]: With dead ends: 686 [2022-01-31 22:10:14,155 INFO L226 Difference]: Without dead ends: 371 [2022-01-31 22:10:14,155 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-01-31 22:10:14,156 INFO L933 BasicCegarLoop]: 192 mSDtfsCounter, 795 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 795 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-31 22:10:14,156 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [795 Valid, 209 Invalid, 422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 376 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-31 22:10:14,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2022-01-31 22:10:14,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 357. [2022-01-31 22:10:14,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 352 states have (on average 1.4602272727272727) internal successors, (514), 352 states have internal predecessors, (514), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:14,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 518 transitions. [2022-01-31 22:10:14,228 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 518 transitions. Word has length 48 [2022-01-31 22:10:14,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:10:14,228 INFO L470 AbstractCegarLoop]: Abstraction has 357 states and 518 transitions. [2022-01-31 22:10:14,228 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:14,228 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 518 transitions. [2022-01-31 22:10:14,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-01-31 22:10:14,229 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:10:14,229 INFO L514 BasicCegarLoop]: 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, 1, 1, 1, 1, 1] [2022-01-31 22:10:14,229 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-31 22:10:14,229 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:10:14,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:10:14,230 INFO L85 PathProgramCache]: Analyzing trace with hash -447006304, now seen corresponding path program 1 times [2022-01-31 22:10:14,230 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:10:14,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [537096587] [2022-01-31 22:10:14,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:10:14,230 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:10:14,231 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:10:14,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:14,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:10:14,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:14,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:10:14,267 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:10:14,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [537096587] [2022-01-31 22:10:14,267 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [537096587] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:10:14,267 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:10:14,267 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-31 22:10:14,267 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405505366] [2022-01-31 22:10:14,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:10:14,267 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-31 22:10:14,268 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:10:14,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-31 22:10:14,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-31 22:10:14,268 INFO L87 Difference]: Start difference. First operand 357 states and 518 transitions. Second operand has 6 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:14,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:10:14,687 INFO L93 Difference]: Finished difference Result 734 states and 1062 transitions. [2022-01-31 22:10:14,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-31 22:10:14,687 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 48 [2022-01-31 22:10:14,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:10:14,689 INFO L225 Difference]: With dead ends: 734 [2022-01-31 22:10:14,689 INFO L226 Difference]: Without dead ends: 391 [2022-01-31 22:10:14,690 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-01-31 22:10:14,690 INFO L933 BasicCegarLoop]: 194 mSDtfsCounter, 759 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 759 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-31 22:10:14,691 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [759 Valid, 211 Invalid, 409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-31 22:10:14,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2022-01-31 22:10:14,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 389. [2022-01-31 22:10:14,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389 states, 384 states have (on average 1.4453125) internal successors, (555), 384 states have internal predecessors, (555), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:14,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 559 transitions. [2022-01-31 22:10:14,770 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 559 transitions. Word has length 48 [2022-01-31 22:10:14,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:10:14,770 INFO L470 AbstractCegarLoop]: Abstraction has 389 states and 559 transitions. [2022-01-31 22:10:14,770 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:14,771 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 559 transitions. [2022-01-31 22:10:14,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-01-31 22:10:14,771 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:10:14,771 INFO L514 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1] [2022-01-31 22:10:14,771 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-31 22:10:14,771 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:10:14,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:10:14,772 INFO L85 PathProgramCache]: Analyzing trace with hash 1888205337, now seen corresponding path program 1 times [2022-01-31 22:10:14,772 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:10:14,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1378627978] [2022-01-31 22:10:14,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:10:14,773 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:10:14,774 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:10:14,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:14,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:10:14,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:14,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:10:14,813 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:10:14,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1378627978] [2022-01-31 22:10:14,813 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1378627978] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:10:14,813 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:10:14,813 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-31 22:10:14,813 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197414553] [2022-01-31 22:10:14,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:10:14,814 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-31 22:10:14,814 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:10:14,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-31 22:10:14,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-31 22:10:14,815 INFO L87 Difference]: Start difference. First operand 389 states and 559 transitions. Second operand has 6 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:15,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:10:15,214 INFO L93 Difference]: Finished difference Result 778 states and 1123 transitions. [2022-01-31 22:10:15,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-31 22:10:15,214 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 49 [2022-01-31 22:10:15,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:10:15,216 INFO L225 Difference]: With dead ends: 778 [2022-01-31 22:10:15,216 INFO L226 Difference]: Without dead ends: 403 [2022-01-31 22:10:15,217 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-01-31 22:10:15,217 INFO L933 BasicCegarLoop]: 193 mSDtfsCounter, 795 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 795 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-31 22:10:15,218 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [795 Valid, 210 Invalid, 425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 377 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-31 22:10:15,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2022-01-31 22:10:15,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 389. [2022-01-31 22:10:15,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389 states, 384 states have (on average 1.4375) internal successors, (552), 384 states have internal predecessors, (552), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:15,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 556 transitions. [2022-01-31 22:10:15,306 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 556 transitions. Word has length 49 [2022-01-31 22:10:15,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:10:15,306 INFO L470 AbstractCegarLoop]: Abstraction has 389 states and 556 transitions. [2022-01-31 22:10:15,306 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:15,306 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 556 transitions. [2022-01-31 22:10:15,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-01-31 22:10:15,307 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:10:15,307 INFO L514 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1] [2022-01-31 22:10:15,307 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-31 22:10:15,307 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:10:15,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:10:15,307 INFO L85 PathProgramCache]: Analyzing trace with hash -396811972, now seen corresponding path program 1 times [2022-01-31 22:10:15,307 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:10:15,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1873955071] [2022-01-31 22:10:15,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:10:15,308 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:10:15,309 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:10:15,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:15,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:10:15,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:15,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:10:15,345 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:10:15,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1873955071] [2022-01-31 22:10:15,345 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1873955071] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:10:15,345 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:10:15,345 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-31 22:10:15,346 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765918875] [2022-01-31 22:10:15,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:10:15,346 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-31 22:10:15,346 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:10:15,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-31 22:10:15,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-31 22:10:15,347 INFO L87 Difference]: Start difference. First operand 389 states and 556 transitions. Second operand has 6 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:15,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:10:15,724 INFO L93 Difference]: Finished difference Result 768 states and 1100 transitions. [2022-01-31 22:10:15,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-31 22:10:15,724 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 49 [2022-01-31 22:10:15,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:10:15,726 INFO L225 Difference]: With dead ends: 768 [2022-01-31 22:10:15,726 INFO L226 Difference]: Without dead ends: 393 [2022-01-31 22:10:15,727 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-01-31 22:10:15,727 INFO L933 BasicCegarLoop]: 200 mSDtfsCounter, 746 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 746 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-31 22:10:15,728 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [746 Valid, 217 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-31 22:10:15,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2022-01-31 22:10:15,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 391. [2022-01-31 22:10:15,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 391 states, 386 states have (on average 1.4378238341968912) internal successors, (555), 386 states have internal predecessors, (555), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:15,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 559 transitions. [2022-01-31 22:10:15,831 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 559 transitions. Word has length 49 [2022-01-31 22:10:15,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:10:15,831 INFO L470 AbstractCegarLoop]: Abstraction has 391 states and 559 transitions. [2022-01-31 22:10:15,831 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:15,831 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 559 transitions. [2022-01-31 22:10:15,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-01-31 22:10:15,834 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:10:15,834 INFO L514 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:10:15,834 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-31 22:10:15,834 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:10:15,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:10:15,834 INFO L85 PathProgramCache]: Analyzing trace with hash 1088761570, now seen corresponding path program 1 times [2022-01-31 22:10:15,834 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:10:15,835 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [74141752] [2022-01-31 22:10:15,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:10:15,836 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:10:15,837 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:10:15,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:15,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:10:15,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:15,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:10:15,882 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:10:15,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [74141752] [2022-01-31 22:10:15,882 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [74141752] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:10:15,882 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:10:15,882 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-31 22:10:15,882 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903200897] [2022-01-31 22:10:15,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:10:15,883 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-31 22:10:15,883 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:10:15,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-31 22:10:15,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-31 22:10:15,884 INFO L87 Difference]: Start difference. First operand 391 states and 559 transitions. Second operand has 6 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:16,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:10:16,348 INFO L93 Difference]: Finished difference Result 832 states and 1196 transitions. [2022-01-31 22:10:16,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-31 22:10:16,349 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 50 [2022-01-31 22:10:16,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:10:16,351 INFO L225 Difference]: With dead ends: 832 [2022-01-31 22:10:16,351 INFO L226 Difference]: Without dead ends: 455 [2022-01-31 22:10:16,353 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-01-31 22:10:16,353 INFO L933 BasicCegarLoop]: 196 mSDtfsCounter, 739 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 404 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 739 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-31 22:10:16,354 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [739 Valid, 213 Invalid, 453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 404 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-31 22:10:16,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455 states. [2022-01-31 22:10:16,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 453. [2022-01-31 22:10:16,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 448 states have (on average 1.4308035714285714) internal successors, (641), 448 states have internal predecessors, (641), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:16,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 645 transitions. [2022-01-31 22:10:16,452 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 645 transitions. Word has length 50 [2022-01-31 22:10:16,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:10:16,452 INFO L470 AbstractCegarLoop]: Abstraction has 453 states and 645 transitions. [2022-01-31 22:10:16,452 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:16,452 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 645 transitions. [2022-01-31 22:10:16,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-01-31 22:10:16,453 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:10:16,453 INFO L514 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:10:16,453 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-31 22:10:16,453 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:10:16,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:10:16,454 INFO L85 PathProgramCache]: Analyzing trace with hash -1090858659, now seen corresponding path program 1 times [2022-01-31 22:10:16,454 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:10:16,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1401566869] [2022-01-31 22:10:16,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:10:16,454 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:10:16,455 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:10:16,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:16,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:10:16,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:16,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:10:16,488 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:10:16,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1401566869] [2022-01-31 22:10:16,488 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1401566869] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:10:16,488 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:10:16,488 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-31 22:10:16,488 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183263141] [2022-01-31 22:10:16,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:10:16,488 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-31 22:10:16,489 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:10:16,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-31 22:10:16,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-31 22:10:16,489 INFO L87 Difference]: Start difference. First operand 453 states and 645 transitions. Second operand has 6 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:16,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:10:16,920 INFO L93 Difference]: Finished difference Result 944 states and 1344 transitions. [2022-01-31 22:10:16,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-31 22:10:16,920 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 50 [2022-01-31 22:10:16,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:10:16,921 INFO L225 Difference]: With dead ends: 944 [2022-01-31 22:10:16,921 INFO L226 Difference]: Without dead ends: 505 [2022-01-31 22:10:16,922 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-01-31 22:10:16,923 INFO L933 BasicCegarLoop]: 195 mSDtfsCounter, 809 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 809 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-31 22:10:16,923 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [809 Valid, 212 Invalid, 437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 377 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-31 22:10:16,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2022-01-31 22:10:17,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 495. [2022-01-31 22:10:17,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 495 states, 490 states have (on average 1.4224489795918367) internal successors, (697), 490 states have internal predecessors, (697), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:17,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 701 transitions. [2022-01-31 22:10:17,040 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 701 transitions. Word has length 50 [2022-01-31 22:10:17,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:10:17,040 INFO L470 AbstractCegarLoop]: Abstraction has 495 states and 701 transitions. [2022-01-31 22:10:17,040 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:17,040 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 701 transitions. [2022-01-31 22:10:17,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-01-31 22:10:17,041 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:10:17,041 INFO L514 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:10:17,041 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-31 22:10:17,041 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:10:17,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:10:17,041 INFO L85 PathProgramCache]: Analyzing trace with hash -163662636, now seen corresponding path program 1 times [2022-01-31 22:10:17,041 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:10:17,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1456748598] [2022-01-31 22:10:17,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:10:17,042 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:10:17,043 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:10:17,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:17,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:10:17,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:17,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:10:17,074 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:10:17,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1456748598] [2022-01-31 22:10:17,074 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1456748598] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:10:17,074 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:10:17,074 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-31 22:10:17,074 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365065678] [2022-01-31 22:10:17,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:10:17,075 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-31 22:10:17,075 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:10:17,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-31 22:10:17,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-31 22:10:17,075 INFO L87 Difference]: Start difference. First operand 495 states and 701 transitions. Second operand has 6 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:17,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:10:17,535 INFO L93 Difference]: Finished difference Result 995 states and 1416 transitions. [2022-01-31 22:10:17,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-31 22:10:17,535 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 51 [2022-01-31 22:10:17,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:10:17,536 INFO L225 Difference]: With dead ends: 995 [2022-01-31 22:10:17,536 INFO L226 Difference]: Without dead ends: 514 [2022-01-31 22:10:17,537 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-01-31 22:10:17,538 INFO L933 BasicCegarLoop]: 195 mSDtfsCounter, 812 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 812 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-31 22:10:17,538 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [812 Valid, 212 Invalid, 439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 377 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-31 22:10:17,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2022-01-31 22:10:17,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 504. [2022-01-31 22:10:17,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 504 states, 499 states have (on average 1.4288577154308617) internal successors, (713), 499 states have internal predecessors, (713), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:17,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 717 transitions. [2022-01-31 22:10:17,660 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 717 transitions. Word has length 51 [2022-01-31 22:10:17,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:10:17,660 INFO L470 AbstractCegarLoop]: Abstraction has 504 states and 717 transitions. [2022-01-31 22:10:17,660 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:17,660 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 717 transitions. [2022-01-31 22:10:17,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-01-31 22:10:17,661 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:10:17,661 INFO L514 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:10:17,661 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-31 22:10:17,662 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:10:17,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:10:17,662 INFO L85 PathProgramCache]: Analyzing trace with hash -1175453866, now seen corresponding path program 1 times [2022-01-31 22:10:17,662 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:10:17,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [181539388] [2022-01-31 22:10:17,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:10:17,662 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:10:17,663 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:10:17,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:17,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:10:17,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:17,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:10:17,696 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:10:17,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [181539388] [2022-01-31 22:10:17,696 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [181539388] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:10:17,696 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:10:17,697 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-31 22:10:17,697 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203642634] [2022-01-31 22:10:17,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:10:17,697 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-31 22:10:17,697 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:10:17,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-31 22:10:17,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-31 22:10:17,698 INFO L87 Difference]: Start difference. First operand 504 states and 717 transitions. Second operand has 6 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:18,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:10:18,152 INFO L93 Difference]: Finished difference Result 1045 states and 1487 transitions. [2022-01-31 22:10:18,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-31 22:10:18,152 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 64 [2022-01-31 22:10:18,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:10:18,154 INFO L225 Difference]: With dead ends: 1045 [2022-01-31 22:10:18,154 INFO L226 Difference]: Without dead ends: 555 [2022-01-31 22:10:18,155 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-01-31 22:10:18,156 INFO L933 BasicCegarLoop]: 196 mSDtfsCounter, 807 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 807 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-31 22:10:18,159 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [807 Valid, 213 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 377 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-31 22:10:18,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2022-01-31 22:10:18,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 549. [2022-01-31 22:10:18,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 549 states, 544 states have (on average 1.4209558823529411) internal successors, (773), 544 states have internal predecessors, (773), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:18,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 777 transitions. [2022-01-31 22:10:18,322 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 777 transitions. Word has length 64 [2022-01-31 22:10:18,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:10:18,323 INFO L470 AbstractCegarLoop]: Abstraction has 549 states and 777 transitions. [2022-01-31 22:10:18,323 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:18,323 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 777 transitions. [2022-01-31 22:10:18,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-01-31 22:10:18,324 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:10:18,324 INFO L514 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:10:18,324 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-31 22:10:18,324 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:10:18,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:10:18,325 INFO L85 PathProgramCache]: Analyzing trace with hash 1954305357, now seen corresponding path program 1 times [2022-01-31 22:10:18,325 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:10:18,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1338144440] [2022-01-31 22:10:18,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:10:18,325 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:10:18,326 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:10:18,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:18,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:10:18,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:18,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:10:18,365 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:10:18,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1338144440] [2022-01-31 22:10:18,365 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1338144440] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:10:18,365 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:10:18,365 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-31 22:10:18,365 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997507913] [2022-01-31 22:10:18,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:10:18,365 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-31 22:10:18,365 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:10:18,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-31 22:10:18,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-31 22:10:18,366 INFO L87 Difference]: Start difference. First operand 549 states and 777 transitions. Second operand has 6 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:18,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:10:18,815 INFO L93 Difference]: Finished difference Result 1094 states and 1553 transitions. [2022-01-31 22:10:18,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-31 22:10:18,815 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2022-01-31 22:10:18,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:10:18,817 INFO L225 Difference]: With dead ends: 1094 [2022-01-31 22:10:18,817 INFO L226 Difference]: Without dead ends: 557 [2022-01-31 22:10:18,819 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-01-31 22:10:18,819 INFO L933 BasicCegarLoop]: 194 mSDtfsCounter, 815 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 815 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-31 22:10:18,819 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [815 Valid, 211 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 374 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-31 22:10:18,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2022-01-31 22:10:18,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 551. [2022-01-31 22:10:18,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 546 states have (on average 1.4212454212454213) internal successors, (776), 546 states have internal predecessors, (776), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:18,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 780 transitions. [2022-01-31 22:10:18,959 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 780 transitions. Word has length 65 [2022-01-31 22:10:18,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:10:18,959 INFO L470 AbstractCegarLoop]: Abstraction has 551 states and 780 transitions. [2022-01-31 22:10:18,959 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:18,959 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 780 transitions. [2022-01-31 22:10:18,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-01-31 22:10:18,960 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:10:18,960 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 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] [2022-01-31 22:10:18,961 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-31 22:10:18,961 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:10:18,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:10:18,961 INFO L85 PathProgramCache]: Analyzing trace with hash 1606826053, now seen corresponding path program 1 times [2022-01-31 22:10:18,961 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:10:18,961 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1747222859] [2022-01-31 22:10:18,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:10:19,265 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:10:19,266 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2022-01-31 22:10:19,266 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:10:19,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:19,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:10:19,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:19,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:10:20,711 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:10:20,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1747222859] [2022-01-31 22:10:20,711 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1747222859] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:10:20,711 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:10:20,711 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2022-01-31 22:10:20,711 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494482804] [2022-01-31 22:10:20,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:10:20,711 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-01-31 22:10:20,712 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:10:20,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-01-31 22:10:20,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=530, Invalid=592, Unknown=0, NotChecked=0, Total=1122 [2022-01-31 22:10:20,713 INFO L87 Difference]: Start difference. First operand 551 states and 780 transitions. Second operand has 34 states, 34 states have (on average 2.3823529411764706) internal successors, (81), 33 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:23,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:10:23,754 INFO L93 Difference]: Finished difference Result 2247 states and 3172 transitions. [2022-01-31 22:10:23,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-01-31 22:10:23,754 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.3823529411764706) internal successors, (81), 33 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 85 [2022-01-31 22:10:23,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:10:23,759 INFO L225 Difference]: With dead ends: 2247 [2022-01-31 22:10:23,759 INFO L226 Difference]: Without dead ends: 1710 [2022-01-31 22:10:23,761 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 553 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=1584, Invalid=2576, Unknown=0, NotChecked=0, Total=4160 [2022-01-31 22:10:23,761 INFO L933 BasicCegarLoop]: 364 mSDtfsCounter, 1124 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 3178 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1124 SdHoareTripleChecker+Valid, 391 SdHoareTripleChecker+Invalid, 3231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 3178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-01-31 22:10:23,761 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1124 Valid, 391 Invalid, 3231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 3178 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-01-31 22:10:23,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1710 states. [2022-01-31 22:10:24,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1710 to 1584. [2022-01-31 22:10:24,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1584 states, 1579 states have (on average 1.396453451551615) internal successors, (2205), 1579 states have internal predecessors, (2205), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:24,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1584 states to 1584 states and 2209 transitions. [2022-01-31 22:10:24,093 INFO L78 Accepts]: Start accepts. Automaton has 1584 states and 2209 transitions. Word has length 85 [2022-01-31 22:10:24,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:10:24,093 INFO L470 AbstractCegarLoop]: Abstraction has 1584 states and 2209 transitions. [2022-01-31 22:10:24,094 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 2.3823529411764706) internal successors, (81), 33 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:24,094 INFO L276 IsEmpty]: Start isEmpty. Operand 1584 states and 2209 transitions. [2022-01-31 22:10:24,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-01-31 22:10:24,095 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:10:24,095 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-01-31 22:10:24,096 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-31 22:10:24,096 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:10:24,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:10:24,096 INFO L85 PathProgramCache]: Analyzing trace with hash 1991663534, now seen corresponding path program 1 times [2022-01-31 22:10:24,096 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:10:24,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2003182759] [2022-01-31 22:10:24,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:10:24,198 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:10:24,198 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2022-01-31 22:10:24,295 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:10:27,696 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 9 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=7, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:10:27,696 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:10:27,696 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:10:27,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:27,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:10:27,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:27,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:10:28,189 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:10:28,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2003182759] [2022-01-31 22:10:28,189 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [2003182759] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:10:28,189 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:10:28,189 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-31 22:10:28,189 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177112516] [2022-01-31 22:10:28,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:10:28,190 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-31 22:10:28,190 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:10:28,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-31 22:10:28,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=332, Unknown=0, NotChecked=0, Total=462 [2022-01-31 22:10:28,191 INFO L87 Difference]: Start difference. First operand 1584 states and 2209 transitions. Second operand has 22 states, 22 states have (on average 4.454545454545454) internal successors, (98), 21 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:30,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:10:30,336 INFO L93 Difference]: Finished difference Result 4989 states and 6891 transitions. [2022-01-31 22:10:30,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-31 22:10:30,338 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 4.454545454545454) internal successors, (98), 21 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 102 [2022-01-31 22:10:30,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:10:30,347 INFO L225 Difference]: With dead ends: 4989 [2022-01-31 22:10:30,348 INFO L226 Difference]: Without dead ends: 3419 [2022-01-31 22:10:30,351 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 393 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=384, Invalid=1256, Unknown=0, NotChecked=0, Total=1640 [2022-01-31 22:10:30,351 INFO L933 BasicCegarLoop]: 269 mSDtfsCounter, 1352 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 2479 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1352 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 2549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 2479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-01-31 22:10:30,351 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1352 Valid, 286 Invalid, 2549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 2479 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-01-31 22:10:30,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3419 states. [2022-01-31 22:10:30,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3419 to 2110. [2022-01-31 22:10:30,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2110 states, 2105 states have (on average 1.390498812351544) internal successors, (2927), 2105 states have internal predecessors, (2927), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:30,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2110 states to 2110 states and 2931 transitions. [2022-01-31 22:10:30,808 INFO L78 Accepts]: Start accepts. Automaton has 2110 states and 2931 transitions. Word has length 102 [2022-01-31 22:10:30,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:10:30,809 INFO L470 AbstractCegarLoop]: Abstraction has 2110 states and 2931 transitions. [2022-01-31 22:10:30,809 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 4.454545454545454) internal successors, (98), 21 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:30,809 INFO L276 IsEmpty]: Start isEmpty. Operand 2110 states and 2931 transitions. [2022-01-31 22:10:30,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-01-31 22:10:30,810 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:10:30,811 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-01-31 22:10:30,811 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-31 22:10:30,811 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:10:30,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:10:30,811 INFO L85 PathProgramCache]: Analyzing trace with hash 862824270, now seen corresponding path program 1 times [2022-01-31 22:10:30,811 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:10:30,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1866307405] [2022-01-31 22:10:30,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:10:31,326 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 7 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:10:31,327 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2022-01-31 22:10:31,327 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:10:31,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:31,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:10:31,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:31,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:10:33,599 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:10:33,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1866307405] [2022-01-31 22:10:33,600 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1866307405] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:10:33,600 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:10:33,600 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [47] imperfect sequences [] total 47 [2022-01-31 22:10:33,600 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48300303] [2022-01-31 22:10:33,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:10:33,600 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2022-01-31 22:10:33,600 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:10:33,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2022-01-31 22:10:33,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=827, Invalid=1335, Unknown=0, NotChecked=0, Total=2162 [2022-01-31 22:10:33,601 INFO L87 Difference]: Start difference. First operand 2110 states and 2931 transitions. Second operand has 47 states, 47 states have (on average 2.25531914893617) internal successors, (106), 46 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:37,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:10:37,585 INFO L93 Difference]: Finished difference Result 5600 states and 7479 transitions. [2022-01-31 22:10:37,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-01-31 22:10:37,585 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 47 states have (on average 2.25531914893617) internal successors, (106), 46 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 111 [2022-01-31 22:10:37,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:10:37,594 INFO L225 Difference]: With dead ends: 5600 [2022-01-31 22:10:37,594 INFO L226 Difference]: Without dead ends: 3504 [2022-01-31 22:10:37,599 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2992 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=3463, Invalid=8527, Unknown=0, NotChecked=0, Total=11990 [2022-01-31 22:10:37,600 INFO L933 BasicCegarLoop]: 321 mSDtfsCounter, 1233 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 2457 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1233 SdHoareTripleChecker+Valid, 353 SdHoareTripleChecker+Invalid, 2529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 2457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-01-31 22:10:37,600 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1233 Valid, 353 Invalid, 2529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 2457 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-01-31 22:10:37,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3504 states. [2022-01-31 22:10:38,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3504 to 2236. [2022-01-31 22:10:38,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2236 states, 2231 states have (on average 1.348722545943523) internal successors, (3009), 2231 states have internal predecessors, (3009), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:38,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2236 states to 2236 states and 3013 transitions. [2022-01-31 22:10:38,176 INFO L78 Accepts]: Start accepts. Automaton has 2236 states and 3013 transitions. Word has length 111 [2022-01-31 22:10:38,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:10:38,176 INFO L470 AbstractCegarLoop]: Abstraction has 2236 states and 3013 transitions. [2022-01-31 22:10:38,176 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 47 states have (on average 2.25531914893617) internal successors, (106), 46 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:38,176 INFO L276 IsEmpty]: Start isEmpty. Operand 2236 states and 3013 transitions. [2022-01-31 22:10:38,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-01-31 22:10:38,178 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:10:38,178 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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] [2022-01-31 22:10:38,179 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-31 22:10:38,179 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:10:38,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:10:38,179 INFO L85 PathProgramCache]: Analyzing trace with hash -608222632, now seen corresponding path program 1 times [2022-01-31 22:10:38,179 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:10:38,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1261155589] [2022-01-31 22:10:38,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:10:38,314 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:10:38,395 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:10:38,396 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:10:38,482 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:10:41,816 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 9 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=7, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:10:41,951 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:10:41,951 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:10:41,951 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:10:41,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:42,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:10:42,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:42,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:10:42,764 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:10:42,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1261155589] [2022-01-31 22:10:42,765 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1261155589] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:10:42,765 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:10:42,765 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-31 22:10:42,765 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285402595] [2022-01-31 22:10:42,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:10:42,765 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-31 22:10:42,766 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:10:42,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-31 22:10:42,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=172, Invalid=640, Unknown=0, NotChecked=0, Total=812 [2022-01-31 22:10:42,766 INFO L87 Difference]: Start difference. First operand 2236 states and 3013 transitions. Second operand has 29 states, 29 states have (on average 4.137931034482759) internal successors, (120), 28 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:47,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:10:47,260 INFO L93 Difference]: Finished difference Result 9257 states and 12415 transitions. [2022-01-31 22:10:47,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-31 22:10:47,260 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.137931034482759) internal successors, (120), 28 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 124 [2022-01-31 22:10:47,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:10:47,277 INFO L225 Difference]: With dead ends: 9257 [2022-01-31 22:10:47,277 INFO L226 Difference]: Without dead ends: 7035 [2022-01-31 22:10:47,280 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 869 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=510, Invalid=2460, Unknown=0, NotChecked=0, Total=2970 [2022-01-31 22:10:47,280 INFO L933 BasicCegarLoop]: 288 mSDtfsCounter, 1697 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 5264 mSolverCounterSat, 142 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1697 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 5406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 142 IncrementalHoareTripleChecker+Valid, 5264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-01-31 22:10:47,280 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1697 Valid, 320 Invalid, 5406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [142 Valid, 5264 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-01-31 22:10:47,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7035 states. [2022-01-31 22:10:48,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7035 to 5067. [2022-01-31 22:10:48,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5067 states, 5062 states have (on average 1.3407743974713553) internal successors, (6787), 5062 states have internal predecessors, (6787), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:48,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5067 states to 5067 states and 6791 transitions. [2022-01-31 22:10:48,841 INFO L78 Accepts]: Start accepts. Automaton has 5067 states and 6791 transitions. Word has length 124 [2022-01-31 22:10:48,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:10:48,841 INFO L470 AbstractCegarLoop]: Abstraction has 5067 states and 6791 transitions. [2022-01-31 22:10:48,842 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.137931034482759) internal successors, (120), 28 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:48,842 INFO L276 IsEmpty]: Start isEmpty. Operand 5067 states and 6791 transitions. [2022-01-31 22:10:48,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-01-31 22:10:48,845 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:10:48,845 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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] [2022-01-31 22:10:48,845 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-01-31 22:10:48,846 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:10:48,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:10:48,846 INFO L85 PathProgramCache]: Analyzing trace with hash 230811030, now seen corresponding path program 1 times [2022-01-31 22:10:48,846 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:10:48,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1200604674] [2022-01-31 22:10:48,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:10:48,932 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:10:49,057 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:10:49,057 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:10:49,125 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:10:52,423 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 9 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=7, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:10:52,540 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:10:52,540 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:10:52,540 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:10:52,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:52,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:10:52,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:52,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:10:53,235 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:10:53,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1200604674] [2022-01-31 22:10:53,236 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1200604674] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:10:53,236 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:10:53,236 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-31 22:10:53,236 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2751360] [2022-01-31 22:10:53,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:10:53,236 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-31 22:10:53,236 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:10:53,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-31 22:10:53,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=172, Invalid=640, Unknown=0, NotChecked=0, Total=812 [2022-01-31 22:10:53,237 INFO L87 Difference]: Start difference. First operand 5067 states and 6791 transitions. Second operand has 29 states, 29 states have (on average 4.137931034482759) internal successors, (120), 28 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:11:00,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:11:00,297 INFO L93 Difference]: Finished difference Result 20473 states and 27355 transitions. [2022-01-31 22:11:00,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-31 22:11:00,297 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.137931034482759) internal successors, (120), 28 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 124 [2022-01-31 22:11:00,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:11:00,339 INFO L225 Difference]: With dead ends: 20473 [2022-01-31 22:11:00,339 INFO L226 Difference]: Without dead ends: 15420 [2022-01-31 22:11:00,349 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 869 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=510, Invalid=2460, Unknown=0, NotChecked=0, Total=2970 [2022-01-31 22:11:00,350 INFO L933 BasicCegarLoop]: 292 mSDtfsCounter, 1382 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 5033 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1382 SdHoareTripleChecker+Valid, 319 SdHoareTripleChecker+Invalid, 5107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 5033 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-01-31 22:11:00,350 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1382 Valid, 319 Invalid, 5107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 5033 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-01-31 22:11:00,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15420 states. [2022-01-31 22:11:04,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15420 to 11524. [2022-01-31 22:11:04,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11524 states, 11519 states have (on average 1.3399600659779494) internal successors, (15435), 11519 states have internal predecessors, (15435), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:11:04,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11524 states to 11524 states and 15439 transitions. [2022-01-31 22:11:04,218 INFO L78 Accepts]: Start accepts. Automaton has 11524 states and 15439 transitions. Word has length 124 [2022-01-31 22:11:04,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:11:04,219 INFO L470 AbstractCegarLoop]: Abstraction has 11524 states and 15439 transitions. [2022-01-31 22:11:04,219 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.137931034482759) internal successors, (120), 28 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:11:04,219 INFO L276 IsEmpty]: Start isEmpty. Operand 11524 states and 15439 transitions. [2022-01-31 22:11:04,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-01-31 22:11:04,227 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:11:04,227 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2022-01-31 22:11:04,227 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-01-31 22:11:04,227 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:11:04,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:11:04,228 INFO L85 PathProgramCache]: Analyzing trace with hash -137436622, now seen corresponding path program 1 times [2022-01-31 22:11:04,228 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:11:04,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [936184355] [2022-01-31 22:11:04,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:11:04,324 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:11:04,459 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:11:04,587 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:11:04,587 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:11:04,665 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:11:04,798 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:11:08,136 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 9 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=7, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:11:08,264 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:11:08,265 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:11:08,265 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:11:08,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:11:08,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:11:08,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:11:08,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:11:09,375 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:11:09,375 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [936184355] [2022-01-31 22:11:09,375 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [936184355] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:11:09,376 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:11:09,376 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2022-01-31 22:11:09,376 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741672684] [2022-01-31 22:11:09,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:11:09,376 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-01-31 22:11:09,376 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:11:09,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-01-31 22:11:09,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=188, Invalid=1002, Unknown=0, NotChecked=0, Total=1190 [2022-01-31 22:11:09,377 INFO L87 Difference]: Start difference. First operand 11524 states and 15439 transitions. Second operand has 35 states, 35 states have (on average 4.057142857142857) internal successors, (142), 34 states have internal predecessors, (142), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:11:17,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:11:17,561 INFO L93 Difference]: Finished difference Result 23314 states and 31176 transitions. [2022-01-31 22:11:17,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-01-31 22:11:17,561 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 4.057142857142857) internal successors, (142), 34 states have internal predecessors, (142), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 146 [2022-01-31 22:11:17,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:11:17,589 INFO L225 Difference]: With dead ends: 23314 [2022-01-31 22:11:17,589 INFO L226 Difference]: Without dead ends: 11804 [2022-01-31 22:11:17,608 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1360 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=558, Invalid=3864, Unknown=0, NotChecked=0, Total=4422 [2022-01-31 22:11:17,609 INFO L933 BasicCegarLoop]: 292 mSDtfsCounter, 1264 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 9200 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1264 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 9242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 9200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-01-31 22:11:17,609 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1264 Valid, 394 Invalid, 9242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 9200 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-01-31 22:11:17,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11804 states. [2022-01-31 22:11:21,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11804 to 11549. [2022-01-31 22:11:21,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11549 states, 11544 states have (on average 1.3393970893970895) internal successors, (15462), 11544 states have internal predecessors, (15462), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:11:21,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11549 states to 11549 states and 15466 transitions. [2022-01-31 22:11:21,419 INFO L78 Accepts]: Start accepts. Automaton has 11549 states and 15466 transitions. Word has length 146 [2022-01-31 22:11:21,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:11:21,419 INFO L470 AbstractCegarLoop]: Abstraction has 11549 states and 15466 transitions. [2022-01-31 22:11:21,419 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 4.057142857142857) internal successors, (142), 34 states have internal predecessors, (142), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:11:21,419 INFO L276 IsEmpty]: Start isEmpty. Operand 11549 states and 15466 transitions. [2022-01-31 22:11:21,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-01-31 22:11:21,426 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:11:21,426 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 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] [2022-01-31 22:11:21,426 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-01-31 22:11:21,426 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:11:21,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:11:21,427 INFO L85 PathProgramCache]: Analyzing trace with hash -1499858722, now seen corresponding path program 1 times [2022-01-31 22:11:21,427 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:11:21,427 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1671180824] [2022-01-31 22:11:21,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:11:21,599 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:11:21,686 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:11:21,882 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:11:21,883 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:11:21,953 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:11:25,235 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 9 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=7, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:11:25,343 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:11:25,467 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:11:25,467 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:11:25,468 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:11:25,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:11:25,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:11:25,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:11:25,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:11:26,660 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:11:26,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1671180824] [2022-01-31 22:11:26,660 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1671180824] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:11:26,660 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:11:26,660 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2022-01-31 22:11:26,660 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216297274] [2022-01-31 22:11:26,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:11:26,662 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2022-01-31 22:11:26,662 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:11:26,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2022-01-31 22:11:26,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=191, Invalid=1069, Unknown=0, NotChecked=0, Total=1260 [2022-01-31 22:11:26,663 INFO L87 Difference]: Start difference. First operand 11549 states and 15466 transitions. Second operand has 36 states, 36 states have (on average 3.9722222222222223) internal successors, (143), 35 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:11:34,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:11:34,049 INFO L93 Difference]: Finished difference Result 23357 states and 31220 transitions. [2022-01-31 22:11:34,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-01-31 22:11:34,049 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 3.9722222222222223) internal successors, (143), 35 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 147 [2022-01-31 22:11:34,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:11:34,071 INFO L225 Difference]: With dead ends: 23357 [2022-01-31 22:11:34,071 INFO L226 Difference]: Without dead ends: 11822 [2022-01-31 22:11:34,092 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1476 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=567, Invalid=4125, Unknown=0, NotChecked=0, Total=4692 [2022-01-31 22:11:34,093 INFO L933 BasicCegarLoop]: 295 mSDtfsCounter, 1526 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 6978 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1526 SdHoareTripleChecker+Valid, 347 SdHoareTripleChecker+Invalid, 7021 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 6978 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-01-31 22:11:34,093 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1526 Valid, 347 Invalid, 7021 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 6978 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-01-31 22:11:34,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11822 states. [2022-01-31 22:11:37,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11822 to 11549. [2022-01-31 22:11:37,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11549 states, 11544 states have (on average 1.3393970893970895) internal successors, (15462), 11544 states have internal predecessors, (15462), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:11:37,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11549 states to 11549 states and 15466 transitions. [2022-01-31 22:11:37,876 INFO L78 Accepts]: Start accepts. Automaton has 11549 states and 15466 transitions. Word has length 147 [2022-01-31 22:11:37,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:11:37,876 INFO L470 AbstractCegarLoop]: Abstraction has 11549 states and 15466 transitions. [2022-01-31 22:11:37,876 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 3.9722222222222223) internal successors, (143), 35 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:11:37,877 INFO L276 IsEmpty]: Start isEmpty. Operand 11549 states and 15466 transitions. [2022-01-31 22:11:37,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-01-31 22:11:37,883 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:11:37,884 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 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] [2022-01-31 22:11:37,884 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-01-31 22:11:37,884 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:11:37,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:11:37,884 INFO L85 PathProgramCache]: Analyzing trace with hash 1948102502, now seen corresponding path program 2 times [2022-01-31 22:11:37,884 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:11:37,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1943055926] [2022-01-31 22:11:37,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:11:37,978 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:11:38,129 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:11:38,262 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:11:38,262 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:11:41,541 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 9 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=7, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:11:41,609 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:11:41,731 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:11:41,864 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:11:41,864 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:11:41,864 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:11:41,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:11:41,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:11:41,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:11:41,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:11:42,186 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:11:42,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1943055926] [2022-01-31 22:11:42,186 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1943055926] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:11:42,186 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:11:42,186 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-01-31 22:11:42,186 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451690040] [2022-01-31 22:11:42,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:11:42,187 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-01-31 22:11:42,187 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:11:42,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-01-31 22:11:42,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=287, Unknown=0, NotChecked=0, Total=420 [2022-01-31 22:11:42,188 INFO L87 Difference]: Start difference. First operand 11549 states and 15466 transitions. Second operand has 21 states, 21 states have (on average 5.142857142857143) internal successors, (108), 20 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:11:48,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:11:48,259 INFO L93 Difference]: Finished difference Result 25399 states and 33821 transitions. [2022-01-31 22:11:48,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-31 22:11:48,259 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 5.142857142857143) internal successors, (108), 20 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 147 [2022-01-31 22:11:48,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:11:48,285 INFO L225 Difference]: With dead ends: 25399 [2022-01-31 22:11:48,285 INFO L226 Difference]: Without dead ends: 13864 [2022-01-31 22:11:48,305 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 355 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=393, Invalid=1089, Unknown=0, NotChecked=0, Total=1482 [2022-01-31 22:11:48,305 INFO L933 BasicCegarLoop]: 289 mSDtfsCounter, 1272 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 2373 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1272 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 2403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 2373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-31 22:11:48,305 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1272 Valid, 321 Invalid, 2403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 2373 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-31 22:11:48,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13864 states. [2022-01-31 22:11:52,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13864 to 10793. [2022-01-31 22:11:52,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10793 states, 10788 states have (on average 1.3297182054134222) internal successors, (14345), 10788 states have internal predecessors, (14345), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:11:52,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10793 states to 10793 states and 14349 transitions. [2022-01-31 22:11:52,442 INFO L78 Accepts]: Start accepts. Automaton has 10793 states and 14349 transitions. Word has length 147 [2022-01-31 22:11:52,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:11:52,442 INFO L470 AbstractCegarLoop]: Abstraction has 10793 states and 14349 transitions. [2022-01-31 22:11:52,442 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 5.142857142857143) internal successors, (108), 20 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:11:52,442 INFO L276 IsEmpty]: Start isEmpty. Operand 10793 states and 14349 transitions. [2022-01-31 22:11:52,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-01-31 22:11:52,446 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:11:52,446 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2022-01-31 22:11:52,447 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-01-31 22:11:52,447 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:11:52,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:11:52,447 INFO L85 PathProgramCache]: Analyzing trace with hash -812177688, now seen corresponding path program 1 times [2022-01-31 22:11:52,447 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:11:52,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [654517595] [2022-01-31 22:11:52,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:11:52,525 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:11:52,641 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:11:55,997 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 3 HavocedVariables, 9 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=7, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:11:55,997 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:11:55,997 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:11:55,997 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:11:56,070 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:11:59,363 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 9 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=7, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:11:59,479 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:11:59,479 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:11:59,479 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:11:59,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:11:59,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:11:59,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:11:59,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:12:00,677 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:12:00,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [654517595] [2022-01-31 22:12:00,677 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [654517595] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:12:00,677 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:12:00,677 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2022-01-31 22:12:00,677 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161685920] [2022-01-31 22:12:00,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:12:00,678 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2022-01-31 22:12:00,678 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:12:00,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2022-01-31 22:12:00,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=217, Invalid=1115, Unknown=0, NotChecked=0, Total=1332 [2022-01-31 22:12:00,679 INFO L87 Difference]: Start difference. First operand 10793 states and 14349 transitions. Second operand has 36 states, 36 states have (on average 4.0) internal successors, (144), 35 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:12:09,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:12:09,414 INFO L93 Difference]: Finished difference Result 23864 states and 31500 transitions. [2022-01-31 22:12:09,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-01-31 22:12:09,415 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 4.0) internal successors, (144), 35 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 148 [2022-01-31 22:12:09,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:12:09,435 INFO L225 Difference]: With dead ends: 23864 [2022-01-31 22:12:09,435 INFO L226 Difference]: Without dead ends: 13085 [2022-01-31 22:12:09,454 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1537 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=619, Invalid=4211, Unknown=0, NotChecked=0, Total=4830 [2022-01-31 22:12:09,455 INFO L933 BasicCegarLoop]: 296 mSDtfsCounter, 1386 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 6827 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1386 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 6939 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 6827 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-01-31 22:12:09,455 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1386 Valid, 348 Invalid, 6939 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 6827 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-01-31 22:12:09,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13085 states. [2022-01-31 22:12:13,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13085 to 10839. [2022-01-31 22:12:13,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10839 states, 10834 states have (on average 1.3294258814842164) internal successors, (14403), 10834 states have internal predecessors, (14403), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:12:13,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10839 states to 10839 states and 14407 transitions. [2022-01-31 22:12:13,857 INFO L78 Accepts]: Start accepts. Automaton has 10839 states and 14407 transitions. Word has length 148 [2022-01-31 22:12:13,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:12:13,858 INFO L470 AbstractCegarLoop]: Abstraction has 10839 states and 14407 transitions. [2022-01-31 22:12:13,858 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 4.0) internal successors, (144), 35 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:12:13,858 INFO L276 IsEmpty]: Start isEmpty. Operand 10839 states and 14407 transitions. [2022-01-31 22:12:13,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-01-31 22:12:13,863 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:12:13,863 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 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] [2022-01-31 22:12:13,863 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-01-31 22:12:13,864 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:12:13,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:12:13,864 INFO L85 PathProgramCache]: Analyzing trace with hash 1885999166, now seen corresponding path program 1 times [2022-01-31 22:12:13,864 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:12:13,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [207625082] [2022-01-31 22:12:13,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:12:13,942 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:12:14,094 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:12:14,227 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:12:14,228 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:12:14,299 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:12:14,420 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:12:17,677 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 9 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=7, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:12:17,796 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:12:17,796 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:12:17,797 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:12:17,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:12:17,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:12:17,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:12:17,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:12:19,034 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:12:19,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [207625082] [2022-01-31 22:12:19,035 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [207625082] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:12:19,035 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:12:19,035 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [39] imperfect sequences [] total 39 [2022-01-31 22:12:19,035 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790657922] [2022-01-31 22:12:19,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:12:19,035 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2022-01-31 22:12:19,035 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:12:19,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2022-01-31 22:12:19,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=206, Invalid=1276, Unknown=0, NotChecked=0, Total=1482 [2022-01-31 22:12:19,036 INFO L87 Difference]: Start difference. First operand 10839 states and 14407 transitions. Second operand has 39 states, 39 states have (on average 3.7435897435897436) internal successors, (146), 38 states have internal predecessors, (146), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:12:27,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:12:27,918 INFO L93 Difference]: Finished difference Result 22098 states and 29285 transitions. [2022-01-31 22:12:27,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-01-31 22:12:27,918 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 39 states have (on average 3.7435897435897436) internal successors, (146), 38 states have internal predecessors, (146), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 150 [2022-01-31 22:12:27,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:12:27,936 INFO L225 Difference]: With dead ends: 22098 [2022-01-31 22:12:27,936 INFO L226 Difference]: Without dead ends: 11273 [2022-01-31 22:12:27,953 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1828 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=612, Invalid=4938, Unknown=0, NotChecked=0, Total=5550 [2022-01-31 22:12:27,953 INFO L933 BasicCegarLoop]: 302 mSDtfsCounter, 1955 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 8548 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1955 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 8624 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 8548 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-01-31 22:12:27,954 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1955 Valid, 364 Invalid, 8624 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 8548 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-01-31 22:12:27,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11273 states. [2022-01-31 22:12:32,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11273 to 10866. [2022-01-31 22:12:32,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10866 states, 10861 states have (on average 1.3289752324831967) internal successors, (14434), 10861 states have internal predecessors, (14434), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:12:32,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10866 states to 10866 states and 14438 transitions. [2022-01-31 22:12:32,315 INFO L78 Accepts]: Start accepts. Automaton has 10866 states and 14438 transitions. Word has length 150 [2022-01-31 22:12:32,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:12:32,315 INFO L470 AbstractCegarLoop]: Abstraction has 10866 states and 14438 transitions. [2022-01-31 22:12:32,315 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 3.7435897435897436) internal successors, (146), 38 states have internal predecessors, (146), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:12:32,315 INFO L276 IsEmpty]: Start isEmpty. Operand 10866 states and 14438 transitions. [2022-01-31 22:12:32,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-01-31 22:12:32,321 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:12:32,321 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 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] [2022-01-31 22:12:32,321 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-01-31 22:12:32,322 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:12:32,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:12:32,322 INFO L85 PathProgramCache]: Analyzing trace with hash 1888351038, now seen corresponding path program 2 times [2022-01-31 22:12:32,322 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:12:32,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [490825732] [2022-01-31 22:12:32,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:12:32,396 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:12:32,522 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:12:32,656 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:12:32,656 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:12:32,732 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:12:32,880 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:12:36,139 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 9 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=7, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:12:36,259 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:12:36,260 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:12:36,260 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:12:36,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:12:36,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:12:36,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:12:36,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:12:37,476 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:12:37,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [490825732] [2022-01-31 22:12:37,477 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [490825732] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:12:37,477 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:12:37,477 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [39] imperfect sequences [] total 39 [2022-01-31 22:12:37,477 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071477627] [2022-01-31 22:12:37,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:12:37,477 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2022-01-31 22:12:37,477 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:12:37,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2022-01-31 22:12:37,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=266, Invalid=1294, Unknown=0, NotChecked=0, Total=1560 [2022-01-31 22:12:37,478 INFO L87 Difference]: Start difference. First operand 10866 states and 14438 transitions. Second operand has 39 states, 39 states have (on average 3.7435897435897436) internal successors, (146), 38 states have internal predecessors, (146), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:12:48,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:12:48,676 INFO L93 Difference]: Finished difference Result 28175 states and 37147 transitions. [2022-01-31 22:12:48,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-01-31 22:12:48,676 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 39 states have (on average 3.7435897435897436) internal successors, (146), 38 states have internal predecessors, (146), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 150 [2022-01-31 22:12:48,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:12:48,700 INFO L225 Difference]: With dead ends: 28175 [2022-01-31 22:12:48,700 INFO L226 Difference]: Without dead ends: 17323 [2022-01-31 22:12:48,714 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1917 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=763, Invalid=4937, Unknown=0, NotChecked=0, Total=5700 [2022-01-31 22:12:48,714 INFO L933 BasicCegarLoop]: 300 mSDtfsCounter, 1153 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 9268 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1153 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 9371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 9268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-01-31 22:12:48,714 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1153 Valid, 372 Invalid, 9371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 9268 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-01-31 22:12:48,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17323 states. [2022-01-31 22:12:54,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17323 to 13228. [2022-01-31 22:12:54,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13228 states, 13223 states have (on average 1.3298041291688725) internal successors, (17584), 13223 states have internal predecessors, (17584), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:12:54,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13228 states to 13228 states and 17588 transitions. [2022-01-31 22:12:54,240 INFO L78 Accepts]: Start accepts. Automaton has 13228 states and 17588 transitions. Word has length 150 [2022-01-31 22:12:54,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:12:54,240 INFO L470 AbstractCegarLoop]: Abstraction has 13228 states and 17588 transitions. [2022-01-31 22:12:54,240 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 3.7435897435897436) internal successors, (146), 38 states have internal predecessors, (146), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:12:54,241 INFO L276 IsEmpty]: Start isEmpty. Operand 13228 states and 17588 transitions. [2022-01-31 22:12:54,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2022-01-31 22:12:54,245 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:12:54,245 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 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] [2022-01-31 22:12:54,245 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-01-31 22:12:54,245 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:12:54,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:12:54,245 INFO L85 PathProgramCache]: Analyzing trace with hash 1097108562, now seen corresponding path program 1 times [2022-01-31 22:12:54,245 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:12:54,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1012592458] [2022-01-31 22:12:54,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:12:54,369 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:12:54,434 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:12:54,573 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:12:54,574 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:12:54,644 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:12:57,911 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 9 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=7, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:12:58,017 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:12:58,135 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:12:58,135 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:12:58,262 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:12:58,262 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:12:58,263 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:12:58,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:12:58,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:12:58,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:12:58,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:12:59,435 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:12:59,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1012592458] [2022-01-31 22:12:59,435 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1012592458] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:12:59,435 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:12:59,435 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [39] imperfect sequences [] total 39 [2022-01-31 22:12:59,435 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107988011] [2022-01-31 22:12:59,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:12:59,436 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2022-01-31 22:12:59,436 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:12:59,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2022-01-31 22:12:59,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=285, Invalid=1355, Unknown=0, NotChecked=0, Total=1640 [2022-01-31 22:12:59,437 INFO L87 Difference]: Start difference. First operand 13228 states and 17588 transitions. Second operand has 39 states, 39 states have (on average 3.769230769230769) internal successors, (147), 38 states have internal predecessors, (147), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:13:12,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:13:12,816 INFO L93 Difference]: Finished difference Result 35715 states and 47169 transitions. [2022-01-31 22:13:12,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-01-31 22:13:12,816 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 39 states have (on average 3.769230769230769) internal successors, (147), 38 states have internal predecessors, (147), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 151 [2022-01-31 22:13:12,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:13:12,846 INFO L225 Difference]: With dead ends: 35715 [2022-01-31 22:13:12,846 INFO L226 Difference]: Without dead ends: 22501 [2022-01-31 22:13:12,861 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1993 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=790, Invalid=5062, Unknown=0, NotChecked=0, Total=5852 [2022-01-31 22:13:12,862 INFO L933 BasicCegarLoop]: 296 mSDtfsCounter, 1191 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 8795 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1191 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 8881 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 8795 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-01-31 22:13:12,862 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1191 Valid, 363 Invalid, 8881 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 8795 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-01-31 22:13:12,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22501 states. [2022-01-31 22:13:20,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22501 to 17741. [2022-01-31 22:13:20,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17741 states, 17736 states have (on average 1.3306269733874605) internal successors, (23600), 17736 states have internal predecessors, (23600), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:13:20,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17741 states to 17741 states and 23604 transitions. [2022-01-31 22:13:20,502 INFO L78 Accepts]: Start accepts. Automaton has 17741 states and 23604 transitions. Word has length 151 [2022-01-31 22:13:20,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:13:20,502 INFO L470 AbstractCegarLoop]: Abstraction has 17741 states and 23604 transitions. [2022-01-31 22:13:20,502 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 3.769230769230769) internal successors, (147), 38 states have internal predecessors, (147), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:13:20,502 INFO L276 IsEmpty]: Start isEmpty. Operand 17741 states and 23604 transitions. [2022-01-31 22:13:20,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2022-01-31 22:13:20,508 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:13:20,508 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:13:20,508 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-01-31 22:13:20,509 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:13:20,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:13:20,509 INFO L85 PathProgramCache]: Analyzing trace with hash 1761596367, now seen corresponding path program 1 times [2022-01-31 22:13:20,509 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:13:20,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1698568229] [2022-01-31 22:13:20,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:13:20,636 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:13:20,686 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 5 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=3, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:13:20,688 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:13:20,688 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:13:24,086 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 9 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=7, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:13:24,201 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:13:24,201 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:13:24,245 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 5 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=3, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:13:24,362 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:13:24,474 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:13:58,946 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 9 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=7, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:13:58,946 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:13:58,946 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:13:58,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:13:59,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:13:59,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:13:59,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:14:00,655 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:14:00,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1698568229] [2022-01-31 22:14:00,655 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1698568229] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:14:00,655 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:14:00,655 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [40] imperfect sequences [] total 40 [2022-01-31 22:14:00,655 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795160108] [2022-01-31 22:14:00,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:14:00,656 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2022-01-31 22:14:00,656 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:14:00,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2022-01-31 22:14:00,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=323, Invalid=1237, Unknown=0, NotChecked=0, Total=1560 [2022-01-31 22:14:00,657 INFO L87 Difference]: Start difference. First operand 17741 states and 23604 transitions. Second operand has 40 states, 39 states have (on average 3.923076923076923) internal successors, (153), 38 states have internal predecessors, (153), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:14:29,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:14:29,405 INFO L93 Difference]: Finished difference Result 62052 states and 81024 transitions. [2022-01-31 22:14:29,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2022-01-31 22:14:29,405 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 39 states have (on average 3.923076923076923) internal successors, (153), 38 states have internal predecessors, (153), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 160 [2022-01-31 22:14:29,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:14:29,472 INFO L225 Difference]: With dead ends: 62052 [2022-01-31 22:14:29,473 INFO L226 Difference]: Without dead ends: 44325 [2022-01-31 22:14:29,504 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 96 SyntacticMatches, 2 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3160 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=2037, Invalid=10173, Unknown=0, NotChecked=0, Total=12210 [2022-01-31 22:14:29,504 INFO L933 BasicCegarLoop]: 479 mSDtfsCounter, 2184 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 14354 mSolverCounterSat, 136 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2184 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 14490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 136 IncrementalHoareTripleChecker+Valid, 14354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-01-31 22:14:29,504 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2184 Valid, 571 Invalid, 14490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [136 Valid, 14354 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2022-01-31 22:14:29,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44325 states. [2022-01-31 22:14:46,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44325 to 36649. [2022-01-31 22:14:46,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36649 states, 36644 states have (on average 1.3157952188625697) internal successors, (48216), 36644 states have internal predecessors, (48216), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:14:46,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36649 states to 36649 states and 48220 transitions. [2022-01-31 22:14:46,243 INFO L78 Accepts]: Start accepts. Automaton has 36649 states and 48220 transitions. Word has length 160 [2022-01-31 22:14:46,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:14:46,243 INFO L470 AbstractCegarLoop]: Abstraction has 36649 states and 48220 transitions. [2022-01-31 22:14:46,243 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 39 states have (on average 3.923076923076923) internal successors, (153), 38 states have internal predecessors, (153), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:14:46,243 INFO L276 IsEmpty]: Start isEmpty. Operand 36649 states and 48220 transitions. [2022-01-31 22:14:46,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2022-01-31 22:14:46,250 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:14:46,250 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:14:46,250 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-01-31 22:14:46,250 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:14:46,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:14:46,250 INFO L85 PathProgramCache]: Analyzing trace with hash -634245227, now seen corresponding path program 1 times [2022-01-31 22:14:46,250 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:14:46,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [515986159] [2022-01-31 22:14:46,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:14:46,338 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:14:46,465 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:15:20,727 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 9 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=7, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:15:23,961 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 9 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=7, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:15:24,080 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:15:24,081 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:15:24,211 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:15:24,333 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:15:24,414 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:15:24,415 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:15:24,415 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:15:24,415 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:15:24,415 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:15:24,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:15:24,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:15:24,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:15:24,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:15:25,788 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:15:25,788 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [515986159] [2022-01-31 22:15:25,788 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [515986159] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:15:25,788 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:15:25,788 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [38] imperfect sequences [] total 38 [2022-01-31 22:15:25,788 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628315518] [2022-01-31 22:15:25,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:15:25,789 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2022-01-31 22:15:25,789 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:15:25,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2022-01-31 22:15:25,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=304, Invalid=1102, Unknown=0, NotChecked=0, Total=1406 [2022-01-31 22:15:25,790 INFO L87 Difference]: Start difference. First operand 36649 states and 48220 transitions. Second operand has 38 states, 37 states have (on average 4.162162162162162) internal successors, (154), 36 states have internal predecessors, (154), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:15:50,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:15:50,549 INFO L93 Difference]: Finished difference Result 82414 states and 107491 transitions. [2022-01-31 22:15:50,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-01-31 22:15:50,550 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 37 states have (on average 4.162162162162162) internal successors, (154), 36 states have internal predecessors, (154), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 162 [2022-01-31 22:15:50,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:15:50,628 INFO L225 Difference]: With dead ends: 82414 [2022-01-31 22:15:50,628 INFO L226 Difference]: Without dead ends: 45779 [2022-01-31 22:15:50,670 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1300 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=1003, Invalid=4399, Unknown=0, NotChecked=0, Total=5402 [2022-01-31 22:15:50,670 INFO L933 BasicCegarLoop]: 217 mSDtfsCounter, 1608 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 4489 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1608 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 4606 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 4489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-01-31 22:15:50,670 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1608 Valid, 259 Invalid, 4606 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 4489 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-01-31 22:15:50,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45779 states. [2022-01-31 22:16:07,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45779 to 37479. [2022-01-31 22:16:07,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37479 states, 37474 states have (on average 1.3112558040241233) internal successors, (49138), 37474 states have internal predecessors, (49138), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:16:07,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37479 states to 37479 states and 49142 transitions. [2022-01-31 22:16:07,978 INFO L78 Accepts]: Start accepts. Automaton has 37479 states and 49142 transitions. Word has length 162 [2022-01-31 22:16:07,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:16:07,978 INFO L470 AbstractCegarLoop]: Abstraction has 37479 states and 49142 transitions. [2022-01-31 22:16:07,978 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 37 states have (on average 4.162162162162162) internal successors, (154), 36 states have internal predecessors, (154), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:16:07,978 INFO L276 IsEmpty]: Start isEmpty. Operand 37479 states and 49142 transitions. [2022-01-31 22:16:07,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-01-31 22:16:07,986 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:16:07,986 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:16:07,986 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-01-31 22:16:07,986 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:16:07,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:16:07,986 INFO L85 PathProgramCache]: Analyzing trace with hash -814319060, now seen corresponding path program 1 times [2022-01-31 22:16:07,986 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:16:07,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [603188518] [2022-01-31 22:16:07,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY