/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_11.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-d966a43 [2022-01-31 22:09:58,892 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-31 22:09:58,893 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-31 22:09:58,912 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-31 22:09:58,919 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-31 22:09:58,919 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-31 22:09:58,920 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-31 22:09:58,921 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-31 22:09:58,921 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-31 22:09:58,922 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-31 22:09:58,923 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-31 22:09:58,925 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-31 22:09:58,926 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-31 22:09:58,926 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-31 22:09:58,927 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-31 22:09:58,928 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-31 22:09:58,929 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-31 22:09:58,934 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-31 22:09:58,934 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-31 22:09:58,935 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-31 22:09:58,936 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 22:09:58,941 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-31 22:09:58,941 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-31 22:09:58,942 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-31 22:09:58,942 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-31 22:09:58,942 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-31 22:09:58,942 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-31 22:09:58,942 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-31 22:09:58,942 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-31 22:09:58,942 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-31 22:09:58,942 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-31 22:09:58,942 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-31 22:09:58,943 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-31 22:09:58,943 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-31 22:09:58,943 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-31 22:09:58,943 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-31 22:09:58,943 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-31 22:09:58,943 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-31 22:09:58,943 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-31 22:09:58,943 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 22:09:58,943 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-31 22:09:58,943 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2022-01-31 22:09:58,944 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-31 22:09:58,944 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2022-01-31 22:09:58,944 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-31 22:09:59,133 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-31 22:09:59,148 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-31 22:09:59,150 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-31 22:09:59,150 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-31 22:09:59,154 INFO L275 PluginConnector]: CDTParser initialized [2022-01-31 22:09:59,154 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl-simplified/s3_srvr_11.cil.c [2022-01-31 22:09:59,204 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eacba3ed7/1669d723bb194b85a565c1527d73d441/FLAGb8592fdd4 [2022-01-31 22:09:59,552 INFO L306 CDTParser]: Found 1 translation units. [2022-01-31 22:09:59,552 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl-simplified/s3_srvr_11.cil.c [2022-01-31 22:09:59,568 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eacba3ed7/1669d723bb194b85a565c1527d73d441/FLAGb8592fdd4 [2022-01-31 22:09:59,580 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eacba3ed7/1669d723bb194b85a565c1527d73d441 [2022-01-31 22:09:59,582 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-31 22:09:59,585 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-01-31 22:09:59,587 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-31 22:09:59,587 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-31 22:09:59,589 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-31 22:09:59,590 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 10:09:59" (1/1) ... [2022-01-31 22:09:59,591 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60c559a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:09:59, skipping insertion in model container [2022-01-31 22:09:59,591 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 10:09:59" (1/1) ... [2022-01-31 22:09:59,595 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-31 22:09:59,624 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-31 22:09:59,770 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_11.cil.c[43646,43659] [2022-01-31 22:09:59,775 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 22:09:59,779 INFO L203 MainTranslator]: Completed pre-run [2022-01-31 22:09:59,816 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_11.cil.c[43646,43659] [2022-01-31 22:09:59,829 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 22:09:59,837 INFO L208 MainTranslator]: Completed translation [2022-01-31 22:09:59,837 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:09:59 WrapperNode [2022-01-31 22:09:59,837 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-31 22:09:59,838 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-31 22:09:59,838 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-31 22:09:59,838 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-31 22:09:59,845 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:09:59" (1/1) ... [2022-01-31 22:09:59,845 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:09:59" (1/1) ... [2022-01-31 22:09:59,851 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:09:59" (1/1) ... [2022-01-31 22:09:59,851 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:09:59" (1/1) ... [2022-01-31 22:09:59,857 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:09:59" (1/1) ... [2022-01-31 22:09:59,863 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:09:59" (1/1) ... [2022-01-31 22:09:59,865 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:09:59" (1/1) ... [2022-01-31 22:09:59,867 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-31 22:09:59,868 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-31 22:09:59,868 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-31 22:09:59,868 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-31 22:09:59,868 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:09:59" (1/1) ... [2022-01-31 22:09:59,877 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 22:09:59,891 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 22:09:59,915 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 22:09:59,944 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 22:09:59,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-01-31 22:09:59,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-31 22:09:59,955 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-01-31 22:09:59,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-01-31 22:09:59,956 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-01-31 22:09:59,956 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-01-31 22:09:59,956 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-01-31 22:09:59,956 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-01-31 22:09:59,956 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-31 22:09:59,957 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-01-31 22:09:59,957 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-01-31 22:09:59,957 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-01-31 22:09:59,957 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-01-31 22:09:59,957 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-01-31 22:09:59,958 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-01-31 22:09:59,959 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-01-31 22:09:59,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-31 22:09:59,959 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-31 22:09:59,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-31 22:09:59,959 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-31 22:09:59,959 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-31 22:10:00,019 INFO L234 CfgBuilder]: Building ICFG [2022-01-31 22:10:00,021 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-31 22:10:00,074 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-31 22:10:00,392 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2022-01-31 22:10:00,392 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2022-01-31 22:10:00,401 INFO L275 CfgBuilder]: Performing block encoding [2022-01-31 22:10:00,406 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-31 22:10:00,407 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-31 22:10:00,408 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 10:10:00 BoogieIcfgContainer [2022-01-31 22:10:00,408 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-31 22:10:00,409 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-31 22:10:00,409 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-31 22:10:00,414 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-31 22:10:00,414 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 10:09:59" (1/3) ... [2022-01-31 22:10:00,414 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5341cc5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 10:10:00, skipping insertion in model container [2022-01-31 22:10:00,414 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:09:59" (2/3) ... [2022-01-31 22:10:00,415 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5341cc5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 10:10:00, skipping insertion in model container [2022-01-31 22:10:00,415 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 10:10:00" (3/3) ... [2022-01-31 22:10:00,416 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr_11.cil.c [2022-01-31 22:10:00,419 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-01-31 22:10:00,419 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-31 22:10:00,459 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-31 22:10:00,466 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 22:10:00,466 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-31 22:10:00,483 INFO L276 IsEmpty]: Start isEmpty. Operand has 158 states, 150 states have (on average 1.7266666666666666) internal successors, (259), 151 states have internal predecessors, (259), 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 22:10:00,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-01-31 22:10:00,500 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:10:00,500 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] [2022-01-31 22:10:00,501 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:10:00,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:10:00,504 INFO L85 PathProgramCache]: Analyzing trace with hash 1730008188, now seen corresponding path program 1 times [2022-01-31 22:10:00,511 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:10:00,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1442513820] [2022-01-31 22:10:00,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:10:00,521 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:10:00,551 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:10:00,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:00,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:10:00,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:00,674 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 22:10:00,675 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:10:00,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1442513820] [2022-01-31 22:10:00,677 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1442513820] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:10:00,677 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:10:00,677 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 22:10:00,677 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873964798] [2022-01-31 22:10:00,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:10:00,680 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 22:10:00,681 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:10:00,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 22:10:00,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 22:10:00,704 INFO L87 Difference]: Start difference. First operand has 158 states, 150 states have (on average 1.7266666666666666) internal successors, (259), 151 states have internal predecessors, (259), 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 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 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 22:10:01,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:10:01,177 INFO L93 Difference]: Finished difference Result 365 states and 628 transitions. [2022-01-31 22:10:01,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 22:10:01,179 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 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 32 [2022-01-31 22:10:01,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:10:01,185 INFO L225 Difference]: With dead ends: 365 [2022-01-31 22:10:01,185 INFO L226 Difference]: Without dead ends: 186 [2022-01-31 22:10:01,188 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:10:01,190 INFO L933 BasicCegarLoop]: 281 mSDtfsCounter, 355 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 356 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-31 22:10:01,190 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [356 Valid, 290 Invalid, 328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-31 22:10:01,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2022-01-31 22:10:01,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 185. [2022-01-31 22:10:01,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 180 states have (on average 1.4833333333333334) internal successors, (267), 180 states have internal predecessors, (267), 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 22:10:01,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 271 transitions. [2022-01-31 22:10:01,227 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 271 transitions. Word has length 32 [2022-01-31 22:10:01,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:10:01,228 INFO L470 AbstractCegarLoop]: Abstraction has 185 states and 271 transitions. [2022-01-31 22:10:01,228 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 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 22:10:01,229 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 271 transitions. [2022-01-31 22:10:01,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-01-31 22:10:01,230 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:10:01,230 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] [2022-01-31 22:10:01,230 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-31 22:10:01,230 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:10:01,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:10:01,231 INFO L85 PathProgramCache]: Analyzing trace with hash -1886345113, now seen corresponding path program 1 times [2022-01-31 22:10:01,231 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:10:01,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2076675457] [2022-01-31 22:10:01,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:10:01,232 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:10:01,233 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:10:01,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:01,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:10:01,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:01,299 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 22:10:01,299 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:10:01,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2076675457] [2022-01-31 22:10:01,300 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [2076675457] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:10:01,300 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:10:01,300 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 22:10:01,300 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247031839] [2022-01-31 22:10:01,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:10:01,301 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 22:10:01,301 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:10:01,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 22:10:01,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:10:01,302 INFO L87 Difference]: Start difference. First operand 185 states and 271 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 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 22:10:01,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:10:01,607 INFO L93 Difference]: Finished difference Result 385 states and 567 transitions. [2022-01-31 22:10:01,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:10:01,608 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 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 33 [2022-01-31 22:10:01,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:10:01,610 INFO L225 Difference]: With dead ends: 385 [2022-01-31 22:10:01,610 INFO L226 Difference]: Without dead ends: 214 [2022-01-31 22:10:01,611 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-31 22:10:01,612 INFO L933 BasicCegarLoop]: 173 mSDtfsCounter, 423 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 423 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-31 22:10:01,612 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [423 Valid, 185 Invalid, 385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 375 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-31 22:10:01,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2022-01-31 22:10:01,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 193. [2022-01-31 22:10:01,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 188 states have (on average 1.4893617021276595) internal successors, (280), 188 states have internal predecessors, (280), 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 22:10:01,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 284 transitions. [2022-01-31 22:10:01,630 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 284 transitions. Word has length 33 [2022-01-31 22:10:01,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:10:01,630 INFO L470 AbstractCegarLoop]: Abstraction has 193 states and 284 transitions. [2022-01-31 22:10:01,631 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 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 22:10:01,631 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 284 transitions. [2022-01-31 22:10:01,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-01-31 22:10:01,632 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:10:01,632 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 22:10:01,632 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-31 22:10:01,632 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:10:01,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:10:01,633 INFO L85 PathProgramCache]: Analyzing trace with hash -818420097, now seen corresponding path program 1 times [2022-01-31 22:10:01,633 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:10:01,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1286879709] [2022-01-31 22:10:01,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:10:01,633 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:10:01,635 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:10:01,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:01,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:10:01,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:01,708 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 22:10:01,708 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:10:01,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1286879709] [2022-01-31 22:10:01,708 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1286879709] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:10:01,709 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:10:01,709 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 22:10:01,709 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947858977] [2022-01-31 22:10:01,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:10:01,709 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 22:10:01,709 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:10:01,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 22:10:01,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:10:01,710 INFO L87 Difference]: Start difference. First operand 193 states and 284 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 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 22:10:01,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:10:01,937 INFO L93 Difference]: Finished difference Result 411 states and 605 transitions. [2022-01-31 22:10:01,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:10:01,938 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 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 35 [2022-01-31 22:10:01,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:10:01,940 INFO L225 Difference]: With dead ends: 411 [2022-01-31 22:10:01,940 INFO L226 Difference]: Without dead ends: 232 [2022-01-31 22:10:01,942 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-31 22:10:01,947 INFO L933 BasicCegarLoop]: 184 mSDtfsCounter, 396 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 396 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 22:10:01,948 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [396 Valid, 196 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 381 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-31 22:10:01,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2022-01-31 22:10:01,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 202. [2022-01-31 22:10:01,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 197 states have (on average 1.4771573604060915) internal successors, (291), 197 states have internal predecessors, (291), 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 22:10:01,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 295 transitions. [2022-01-31 22:10:01,975 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 295 transitions. Word has length 35 [2022-01-31 22:10:01,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:10:01,975 INFO L470 AbstractCegarLoop]: Abstraction has 202 states and 295 transitions. [2022-01-31 22:10:01,975 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 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 22:10:01,975 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 295 transitions. [2022-01-31 22:10:01,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-01-31 22:10:01,981 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:10:01,981 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 22:10:01,981 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-31 22:10:01,981 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:10:01,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:10:01,982 INFO L85 PathProgramCache]: Analyzing trace with hash -148338235, now seen corresponding path program 1 times [2022-01-31 22:10:01,982 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:10:01,982 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1387577215] [2022-01-31 22:10:01,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:10:01,983 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:10:01,985 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:10:02,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:02,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:10:02,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:02,058 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 22:10:02,058 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:10:02,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1387577215] [2022-01-31 22:10:02,058 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1387577215] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:10:02,058 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:10:02,058 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 22:10:02,058 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89715354] [2022-01-31 22:10:02,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:10:02,059 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 22:10:02,059 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:10:02,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 22:10:02,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 22:10:02,059 INFO L87 Difference]: Start difference. First operand 202 states and 295 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 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 22:10:02,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:10:02,290 INFO L93 Difference]: Finished difference Result 441 states and 666 transitions. [2022-01-31 22:10:02,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 22:10:02,290 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 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 36 [2022-01-31 22:10:02,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:10:02,291 INFO L225 Difference]: With dead ends: 441 [2022-01-31 22:10:02,292 INFO L226 Difference]: Without dead ends: 241 [2022-01-31 22:10:02,292 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:10:02,293 INFO L933 BasicCegarLoop]: 227 mSDtfsCounter, 310 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 310 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 22:10:02,293 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [310 Valid, 234 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-31 22:10:02,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2022-01-31 22:10:02,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 225. [2022-01-31 22:10:02,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 220 states have (on average 1.4954545454545454) internal successors, (329), 220 states have internal predecessors, (329), 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 22:10:02,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 333 transitions. [2022-01-31 22:10:02,305 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 333 transitions. Word has length 36 [2022-01-31 22:10:02,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:10:02,306 INFO L470 AbstractCegarLoop]: Abstraction has 225 states and 333 transitions. [2022-01-31 22:10:02,306 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 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 22:10:02,306 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 333 transitions. [2022-01-31 22:10:02,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-01-31 22:10:02,307 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:10:02,307 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] [2022-01-31 22:10:02,307 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-31 22:10:02,307 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:10:02,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:10:02,307 INFO L85 PathProgramCache]: Analyzing trace with hash 1107449201, now seen corresponding path program 1 times [2022-01-31 22:10:02,307 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:10:02,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [140527694] [2022-01-31 22:10:02,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:10:02,308 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:10:02,309 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:10:02,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:02,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:10:02,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:02,345 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 22:10:02,345 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:10:02,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [140527694] [2022-01-31 22:10:02,345 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [140527694] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:10:02,345 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:10:02,345 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 22:10:02,345 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131542051] [2022-01-31 22:10:02,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:10:02,346 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 22:10:02,346 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:10:02,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 22:10:02,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 22:10:02,346 INFO L87 Difference]: Start difference. First operand 225 states and 333 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 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 22:10:02,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:10:02,539 INFO L93 Difference]: Finished difference Result 646 states and 962 transitions. [2022-01-31 22:10:02,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 22:10:02,540 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 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 41 [2022-01-31 22:10:02,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:10:02,542 INFO L225 Difference]: With dead ends: 646 [2022-01-31 22:10:02,542 INFO L226 Difference]: Without dead ends: 435 [2022-01-31 22:10:02,543 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:10:02,543 INFO L933 BasicCegarLoop]: 213 mSDtfsCounter, 589 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 589 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 22:10:02,544 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [589 Valid, 220 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-31 22:10:02,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2022-01-31 22:10:02,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 433. [2022-01-31 22:10:02,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 433 states, 428 states have (on average 1.4883177570093458) internal successors, (637), 428 states have internal predecessors, (637), 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 22:10:02,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 641 transitions. [2022-01-31 22:10:02,572 INFO L78 Accepts]: Start accepts. Automaton has 433 states and 641 transitions. Word has length 41 [2022-01-31 22:10:02,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:10:02,573 INFO L470 AbstractCegarLoop]: Abstraction has 433 states and 641 transitions. [2022-01-31 22:10:02,573 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 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 22:10:02,573 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states and 641 transitions. [2022-01-31 22:10:02,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-01-31 22:10:02,574 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:10:02,574 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] [2022-01-31 22:10:02,574 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-31 22:10:02,574 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:10:02,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:10:02,574 INFO L85 PathProgramCache]: Analyzing trace with hash 1540817245, now seen corresponding path program 1 times [2022-01-31 22:10:02,574 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:10:02,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [13274385] [2022-01-31 22:10:02,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:10:02,575 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:10:02,576 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:10:02,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:02,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:10:02,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:02,610 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 22:10:02,611 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:10:02,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [13274385] [2022-01-31 22:10:02,611 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [13274385] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:10:02,611 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:10:02,611 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 22:10:02,611 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921460774] [2022-01-31 22:10:02,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:10:02,612 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 22:10:02,612 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:10:02,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 22:10:02,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 22:10:02,612 INFO L87 Difference]: Start difference. First operand 433 states and 641 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 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 22:10:02,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:10:02,851 INFO L93 Difference]: Finished difference Result 972 states and 1480 transitions. [2022-01-31 22:10:02,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 22:10:02,851 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 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 41 [2022-01-31 22:10:02,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:10:02,853 INFO L225 Difference]: With dead ends: 972 [2022-01-31 22:10:02,853 INFO L226 Difference]: Without dead ends: 529 [2022-01-31 22:10:02,854 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:10:02,854 INFO L933 BasicCegarLoop]: 228 mSDtfsCounter, 348 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 348 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 22:10:02,855 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [348 Valid, 235 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-31 22:10:02,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 529 states. [2022-01-31 22:10:02,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 529 to 489. [2022-01-31 22:10:02,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 489 states, 484 states have (on average 1.5103305785123966) internal successors, (731), 484 states have internal predecessors, (731), 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 22:10:02,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 735 transitions. [2022-01-31 22:10:02,882 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 735 transitions. Word has length 41 [2022-01-31 22:10:02,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:10:02,882 INFO L470 AbstractCegarLoop]: Abstraction has 489 states and 735 transitions. [2022-01-31 22:10:02,882 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 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 22:10:02,883 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 735 transitions. [2022-01-31 22:10:02,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-01-31 22:10:02,883 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:10:02,883 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] [2022-01-31 22:10:02,883 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-31 22:10:02,884 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:10:02,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:10:02,884 INFO L85 PathProgramCache]: Analyzing trace with hash 162840181, now seen corresponding path program 1 times [2022-01-31 22:10:02,884 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:10:02,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1245808031] [2022-01-31 22:10:02,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:10:02,885 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:10:02,886 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:10:02,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:02,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:10:02,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:02,911 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 22:10:02,911 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:10:02,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1245808031] [2022-01-31 22:10:02,911 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1245808031] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:10:02,911 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:10:02,911 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 22:10:02,911 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439130478] [2022-01-31 22:10:02,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:10:02,912 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 22:10:02,912 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:10:02,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 22:10:02,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 22:10:02,912 INFO L87 Difference]: Start difference. First operand 489 states and 735 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 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 22:10:03,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:10:03,161 INFO L93 Difference]: Finished difference Result 1058 states and 1625 transitions. [2022-01-31 22:10:03,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 22:10:03,161 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 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 42 [2022-01-31 22:10:03,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:10:03,163 INFO L225 Difference]: With dead ends: 1058 [2022-01-31 22:10:03,163 INFO L226 Difference]: Without dead ends: 583 [2022-01-31 22:10:03,164 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:10:03,164 INFO L933 BasicCegarLoop]: 231 mSDtfsCounter, 293 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 293 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 22:10:03,165 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [293 Valid, 238 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-31 22:10:03,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583 states. [2022-01-31 22:10:03,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583 to 571. [2022-01-31 22:10:03,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 571 states, 566 states have (on average 1.4681978798586572) internal successors, (831), 566 states have internal predecessors, (831), 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 22:10:03,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 835 transitions. [2022-01-31 22:10:03,214 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 835 transitions. Word has length 42 [2022-01-31 22:10:03,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:10:03,214 INFO L470 AbstractCegarLoop]: Abstraction has 571 states and 835 transitions. [2022-01-31 22:10:03,214 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 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 22:10:03,214 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 835 transitions. [2022-01-31 22:10:03,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-01-31 22:10:03,215 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:10:03,215 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 22:10:03,215 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-31 22:10:03,215 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:10:03,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:10:03,216 INFO L85 PathProgramCache]: Analyzing trace with hash 1441142835, now seen corresponding path program 1 times [2022-01-31 22:10:03,216 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:10:03,216 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1243300773] [2022-01-31 22:10:03,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:10:03,216 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:10:03,217 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:10:03,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:03,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:10:03,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:03,239 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 22:10:03,240 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:10:03,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1243300773] [2022-01-31 22:10:03,240 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1243300773] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:10:03,240 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:10:03,240 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 22:10:03,240 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089355636] [2022-01-31 22:10:03,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:10:03,240 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 22:10:03,241 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:10:03,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 22:10:03,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 22:10:03,241 INFO L87 Difference]: Start difference. First operand 571 states and 835 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 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 22:10:03,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:10:03,436 INFO L93 Difference]: Finished difference Result 1224 states and 1828 transitions. [2022-01-31 22:10:03,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 22:10:03,436 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 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 43 [2022-01-31 22:10:03,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:10:03,438 INFO L225 Difference]: With dead ends: 1224 [2022-01-31 22:10:03,438 INFO L226 Difference]: Without dead ends: 643 [2022-01-31 22:10:03,439 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:10:03,440 INFO L933 BasicCegarLoop]: 228 mSDtfsCounter, 339 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 339 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-31 22:10:03,440 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [339 Valid, 235 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-31 22:10:03,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 643 states. [2022-01-31 22:10:03,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 643 to 633. [2022-01-31 22:10:03,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 633 states, 628 states have (on average 1.4952229299363058) internal successors, (939), 628 states have internal predecessors, (939), 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 22:10:03,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 633 states to 633 states and 943 transitions. [2022-01-31 22:10:03,473 INFO L78 Accepts]: Start accepts. Automaton has 633 states and 943 transitions. Word has length 43 [2022-01-31 22:10:03,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:10:03,475 INFO L470 AbstractCegarLoop]: Abstraction has 633 states and 943 transitions. [2022-01-31 22:10:03,475 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 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 22:10:03,475 INFO L276 IsEmpty]: Start isEmpty. Operand 633 states and 943 transitions. [2022-01-31 22:10:03,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-01-31 22:10:03,476 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:10:03,476 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 22:10:03,476 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-31 22:10:03,476 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:10:03,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:10:03,477 INFO L85 PathProgramCache]: Analyzing trace with hash -111424063, now seen corresponding path program 1 times [2022-01-31 22:10:03,477 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:10:03,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1773865167] [2022-01-31 22:10:03,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:10:03,477 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:10:03,478 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:10:03,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:03,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:10:03,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:03,520 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 22:10:03,520 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:10:03,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1773865167] [2022-01-31 22:10:03,520 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1773865167] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:10:03,520 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:10:03,520 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 22:10:03,520 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469969029] [2022-01-31 22:10:03,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:10:03,521 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 22:10:03,521 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:10:03,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 22:10:03,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:10:03,521 INFO L87 Difference]: Start difference. First operand 633 states and 943 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 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 22:10:03,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:10:03,836 INFO L93 Difference]: Finished difference Result 1392 states and 2069 transitions. [2022-01-31 22:10:03,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-31 22:10:03,836 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 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 48 [2022-01-31 22:10:03,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:10:03,839 INFO L225 Difference]: With dead ends: 1392 [2022-01-31 22:10:03,839 INFO L226 Difference]: Without dead ends: 773 [2022-01-31 22:10:03,840 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-01-31 22:10:03,840 INFO L933 BasicCegarLoop]: 184 mSDtfsCounter, 400 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 400 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 22:10:03,840 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [400 Valid, 196 Invalid, 397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-31 22:10:03,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 773 states. [2022-01-31 22:10:03,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 773 to 627. [2022-01-31 22:10:03,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 627 states, 622 states have (on average 1.5096463022508038) internal successors, (939), 622 states have internal predecessors, (939), 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 22:10:03,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 627 states to 627 states and 943 transitions. [2022-01-31 22:10:03,877 INFO L78 Accepts]: Start accepts. Automaton has 627 states and 943 transitions. Word has length 48 [2022-01-31 22:10:03,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:10:03,877 INFO L470 AbstractCegarLoop]: Abstraction has 627 states and 943 transitions. [2022-01-31 22:10:03,877 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 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 22:10:03,878 INFO L276 IsEmpty]: Start isEmpty. Operand 627 states and 943 transitions. [2022-01-31 22:10:03,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-01-31 22:10:03,878 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:10:03,878 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 22:10:03,878 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-31 22:10:03,879 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:10:03,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:10:03,879 INFO L85 PathProgramCache]: Analyzing trace with hash 1022300905, now seen corresponding path program 1 times [2022-01-31 22:10:03,879 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:10:03,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1028170208] [2022-01-31 22:10:03,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:10:03,879 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:10:03,880 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:10:03,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:03,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:10:03,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:03,900 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 22:10:03,900 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:10:03,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1028170208] [2022-01-31 22:10:03,900 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1028170208] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:10:03,900 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:10:03,900 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 22:10:03,900 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840761479] [2022-01-31 22:10:03,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:10:03,901 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 22:10:03,901 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:10:03,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 22:10:03,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 22:10:03,901 INFO L87 Difference]: Start difference. First operand 627 states and 943 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 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 22:10:04,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:10:04,117 INFO L93 Difference]: Finished difference Result 1334 states and 2041 transitions. [2022-01-31 22:10:04,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 22:10:04,117 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 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 51 [2022-01-31 22:10:04,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:10:04,119 INFO L225 Difference]: With dead ends: 1334 [2022-01-31 22:10:04,119 INFO L226 Difference]: Without dead ends: 721 [2022-01-31 22:10:04,120 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:10:04,121 INFO L933 BasicCegarLoop]: 231 mSDtfsCounter, 297 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 297 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 22:10:04,121 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [297 Valid, 238 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-31 22:10:04,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 721 states. [2022-01-31 22:10:04,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 721 to 701. [2022-01-31 22:10:04,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 701 states, 696 states have (on average 1.4813218390804597) internal successors, (1031), 696 states have internal predecessors, (1031), 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 22:10:04,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 701 states to 701 states and 1035 transitions. [2022-01-31 22:10:04,162 INFO L78 Accepts]: Start accepts. Automaton has 701 states and 1035 transitions. Word has length 51 [2022-01-31 22:10:04,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:10:04,162 INFO L470 AbstractCegarLoop]: Abstraction has 701 states and 1035 transitions. [2022-01-31 22:10:04,162 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 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 22:10:04,162 INFO L276 IsEmpty]: Start isEmpty. Operand 701 states and 1035 transitions. [2022-01-31 22:10:04,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-01-31 22:10:04,163 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:10:04,163 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 22:10:04,163 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-31 22:10:04,163 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:10:04,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:10:04,164 INFO L85 PathProgramCache]: Analyzing trace with hash 1802448233, now seen corresponding path program 1 times [2022-01-31 22:10:04,164 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:10:04,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [496807340] [2022-01-31 22:10:04,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:10:04,164 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:10:04,165 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:10:04,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:04,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:10:04,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:04,186 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 22:10:04,186 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:10:04,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [496807340] [2022-01-31 22:10:04,187 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [496807340] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:10:04,187 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:10:04,187 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 22:10:04,187 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344493122] [2022-01-31 22:10:04,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:10:04,187 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 22:10:04,187 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:10:04,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 22:10:04,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 22:10:04,188 INFO L87 Difference]: Start difference. First operand 701 states and 1035 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 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 22:10:04,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:10:04,402 INFO L93 Difference]: Finished difference Result 2066 states and 3050 transitions. [2022-01-31 22:10:04,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 22:10:04,403 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 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 51 [2022-01-31 22:10:04,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:10:04,406 INFO L225 Difference]: With dead ends: 2066 [2022-01-31 22:10:04,406 INFO L226 Difference]: Without dead ends: 1379 [2022-01-31 22:10:04,408 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:10:04,408 INFO L933 BasicCegarLoop]: 218 mSDtfsCounter, 558 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 558 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-31 22:10:04,408 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [558 Valid, 225 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-31 22:10:04,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1379 states. [2022-01-31 22:10:04,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1379 to 1377. [2022-01-31 22:10:04,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1377 states, 1372 states have (on average 1.4766763848396502) internal successors, (2026), 1372 states have internal predecessors, (2026), 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 22:10:04,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1377 states to 1377 states and 2030 transitions. [2022-01-31 22:10:04,491 INFO L78 Accepts]: Start accepts. Automaton has 1377 states and 2030 transitions. Word has length 51 [2022-01-31 22:10:04,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:10:04,491 INFO L470 AbstractCegarLoop]: Abstraction has 1377 states and 2030 transitions. [2022-01-31 22:10:04,491 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 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 22:10:04,491 INFO L276 IsEmpty]: Start isEmpty. Operand 1377 states and 2030 transitions. [2022-01-31 22:10:04,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-01-31 22:10:04,492 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:10:04,492 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] [2022-01-31 22:10:04,492 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-31 22:10:04,493 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:10:04,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:10:04,493 INFO L85 PathProgramCache]: Analyzing trace with hash 821412563, now seen corresponding path program 1 times [2022-01-31 22:10:04,493 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:10:04,493 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [162371771] [2022-01-31 22:10:04,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:10:04,493 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:10:04,494 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:10:04,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:04,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:10:04,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:04,527 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 22:10:04,528 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:10:04,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [162371771] [2022-01-31 22:10:04,528 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [162371771] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:10:04,528 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:10:04,528 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-31 22:10:04,528 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294026764] [2022-01-31 22:10:04,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:10:04,528 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-31 22:10:04,528 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:10:04,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-31 22:10:04,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-31 22:10:04,529 INFO L87 Difference]: Start difference. First operand 1377 states and 2030 transitions. Second operand has 6 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 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 22:10:04,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:10:04,865 INFO L93 Difference]: Finished difference Result 2953 states and 4379 transitions. [2022-01-31 22:10:04,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-31 22:10:04,865 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 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 52 [2022-01-31 22:10:04,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:10:04,869 INFO L225 Difference]: With dead ends: 2953 [2022-01-31 22:10:04,870 INFO L226 Difference]: Without dead ends: 1567 [2022-01-31 22:10:04,872 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 22:10:04,872 INFO L933 BasicCegarLoop]: 177 mSDtfsCounter, 614 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 444 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 614 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 22:10:04,872 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [614 Valid, 194 Invalid, 490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 444 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-31 22:10:04,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1567 states. [2022-01-31 22:10:04,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1567 to 1453. [2022-01-31 22:10:04,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1453 states, 1448 states have (on average 1.473756906077348) internal successors, (2134), 1448 states have internal predecessors, (2134), 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 22:10:04,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1453 states to 1453 states and 2138 transitions. [2022-01-31 22:10:04,980 INFO L78 Accepts]: Start accepts. Automaton has 1453 states and 2138 transitions. Word has length 52 [2022-01-31 22:10:04,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:10:04,980 INFO L470 AbstractCegarLoop]: Abstraction has 1453 states and 2138 transitions. [2022-01-31 22:10:04,980 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 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 22:10:04,980 INFO L276 IsEmpty]: Start isEmpty. Operand 1453 states and 2138 transitions. [2022-01-31 22:10:04,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-01-31 22:10:04,982 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:10:04,982 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:10:04,982 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-31 22:10:04,982 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:10:04,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:10:04,982 INFO L85 PathProgramCache]: Analyzing trace with hash -1685857253, now seen corresponding path program 1 times [2022-01-31 22:10:04,982 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:10:04,982 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [56760627] [2022-01-31 22:10:04,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:10:05,078 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 3 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=1, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:10:05,079 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2022-01-31 22:10:05,079 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:10:05,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:05,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:10:05,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:05,125 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 22:10:05,876 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:10:05,876 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [56760627] [2022-01-31 22:10:05,876 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [56760627] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:10:05,876 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:10:05,876 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2022-01-31 22:10:05,876 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950694239] [2022-01-31 22:10:05,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:10:05,877 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-01-31 22:10:05,877 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:10:05,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-01-31 22:10:05,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=282, Invalid=420, Unknown=0, NotChecked=0, Total=702 [2022-01-31 22:10:05,877 INFO L87 Difference]: Start difference. First operand 1453 states and 2138 transitions. Second operand has 27 states, 26 states have (on average 2.923076923076923) internal successors, (76), 25 states have internal predecessors, (76), 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 22:10:07,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:10:07,683 INFO L93 Difference]: Finished difference Result 2648 states and 3863 transitions. [2022-01-31 22:10:07,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-31 22:10:07,684 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 2.923076923076923) internal successors, (76), 25 states have internal predecessors, (76), 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 81 [2022-01-31 22:10:07,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:10:07,689 INFO L225 Difference]: With dead ends: 2648 [2022-01-31 22:10:07,689 INFO L226 Difference]: Without dead ends: 1158 [2022-01-31 22:10:07,691 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 355 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=884, Invalid=1666, Unknown=0, NotChecked=0, Total=2550 [2022-01-31 22:10:07,692 INFO L933 BasicCegarLoop]: 276 mSDtfsCounter, 1452 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 1441 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1452 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 1526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 1441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-31 22:10:07,692 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1452 Valid, 308 Invalid, 1526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 1441 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-31 22:10:07,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1158 states. [2022-01-31 22:10:07,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1158 to 824. [2022-01-31 22:10:07,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 824 states, 819 states have (on average 1.4444444444444444) internal successors, (1183), 819 states have internal predecessors, (1183), 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 22:10:07,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 824 states to 824 states and 1187 transitions. [2022-01-31 22:10:07,763 INFO L78 Accepts]: Start accepts. Automaton has 824 states and 1187 transitions. Word has length 81 [2022-01-31 22:10:07,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:10:07,763 INFO L470 AbstractCegarLoop]: Abstraction has 824 states and 1187 transitions. [2022-01-31 22:10:07,763 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 2.923076923076923) internal successors, (76), 25 states have internal predecessors, (76), 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 22:10:07,763 INFO L276 IsEmpty]: Start isEmpty. Operand 824 states and 1187 transitions. [2022-01-31 22:10:07,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-01-31 22:10:07,764 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:10:07,764 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:10:07,765 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-31 22:10:07,765 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:10:07,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:10:07,765 INFO L85 PathProgramCache]: Analyzing trace with hash 925080400, now seen corresponding path program 1 times [2022-01-31 22:10:07,765 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:10:07,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1610684550] [2022-01-31 22:10:07,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:10:07,856 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 22:10:08,398 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 8 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=6, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:10:08,399 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:10:08,465 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 22:10:08,465 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:10:08,465 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:10:08,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:08,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:10:08,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:08,524 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 22:10:08,841 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:10:08,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1610684550] [2022-01-31 22:10:08,841 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1610684550] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:10:08,841 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:10:08,841 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-01-31 22:10:08,841 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97855063] [2022-01-31 22:10:08,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:10:08,842 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-01-31 22:10:08,842 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:10:08,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-01-31 22:10:08,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=341, Unknown=0, NotChecked=0, Total=420 [2022-01-31 22:10:08,842 INFO L87 Difference]: Start difference. First operand 824 states and 1187 transitions. Second operand has 21 states, 20 states have (on average 4.25) internal successors, (85), 19 states have internal predecessors, (85), 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 22:10:10,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:10:10,145 INFO L93 Difference]: Finished difference Result 1829 states and 2635 transitions. [2022-01-31 22:10:10,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-31 22:10:10,145 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 4.25) internal successors, (85), 19 states have internal predecessors, (85), 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 89 [2022-01-31 22:10:10,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:10:10,149 INFO L225 Difference]: With dead ends: 1829 [2022-01-31 22:10:10,149 INFO L226 Difference]: Without dead ends: 1036 [2022-01-31 22:10:10,151 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 34 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 343 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=263, Invalid=1219, Unknown=0, NotChecked=0, Total=1482 [2022-01-31 22:10:10,151 INFO L933 BasicCegarLoop]: 233 mSDtfsCounter, 846 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 2080 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 846 SdHoareTripleChecker+Valid, 260 SdHoareTripleChecker+Invalid, 2147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 2080 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-31 22:10:10,151 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [846 Valid, 260 Invalid, 2147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 2080 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-31 22:10:10,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1036 states. [2022-01-31 22:10:10,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1036 to 928. [2022-01-31 22:10:10,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 928 states, 923 states have (on average 1.420368364030336) internal successors, (1311), 923 states have internal predecessors, (1311), 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 22:10:10,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 928 states to 928 states and 1315 transitions. [2022-01-31 22:10:10,247 INFO L78 Accepts]: Start accepts. Automaton has 928 states and 1315 transitions. Word has length 89 [2022-01-31 22:10:10,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:10:10,247 INFO L470 AbstractCegarLoop]: Abstraction has 928 states and 1315 transitions. [2022-01-31 22:10:10,248 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 4.25) internal successors, (85), 19 states have internal predecessors, (85), 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 22:10:10,248 INFO L276 IsEmpty]: Start isEmpty. Operand 928 states and 1315 transitions. [2022-01-31 22:10:10,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-01-31 22:10:10,249 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:10:10,249 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:10:10,249 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-31 22:10:10,249 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:10:10,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:10:10,249 INFO L85 PathProgramCache]: Analyzing trace with hash -8939381, now seen corresponding path program 1 times [2022-01-31 22:10:10,249 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:10:10,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [323639320] [2022-01-31 22:10:10,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:10:10,647 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 8 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=6, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:10:10,710 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 22:10:10,710 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:10:10,782 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 22:10:10,782 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:10:10,782 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:10:10,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:10,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:10:10,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:10,843 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 22:10:10,984 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:10:10,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [323639320] [2022-01-31 22:10:10,984 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [323639320] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:10:10,984 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:10:10,984 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-31 22:10:10,984 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424783813] [2022-01-31 22:10:10,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:10:10,985 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-31 22:10:10,985 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:10:10,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-31 22:10:10,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-01-31 22:10:10,985 INFO L87 Difference]: Start difference. First operand 928 states and 1315 transitions. Second operand has 16 states, 15 states have (on average 5.6) internal successors, (84), 14 states have internal predecessors, (84), 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 22:10:11,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:10:11,865 INFO L93 Difference]: Finished difference Result 2025 states and 2843 transitions. [2022-01-31 22:10:11,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-31 22:10:11,865 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 5.6) internal successors, (84), 14 states have internal predecessors, (84), 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 90 [2022-01-31 22:10:11,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:10:11,868 INFO L225 Difference]: With dead ends: 2025 [2022-01-31 22:10:11,868 INFO L226 Difference]: Without dead ends: 1132 [2022-01-31 22:10:11,870 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=214, Invalid=598, Unknown=0, NotChecked=0, Total=812 [2022-01-31 22:10:11,870 INFO L933 BasicCegarLoop]: 227 mSDtfsCounter, 798 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 1364 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 798 SdHoareTripleChecker+Valid, 254 SdHoareTripleChecker+Invalid, 1419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 1364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-31 22:10:11,870 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [798 Valid, 254 Invalid, 1419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 1364 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-31 22:10:11,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1132 states. [2022-01-31 22:10:11,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1132 to 1038. [2022-01-31 22:10:11,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1038 states, 1033 states have (on average 1.3910939012584704) internal successors, (1437), 1033 states have internal predecessors, (1437), 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 22:10:11,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1038 states to 1038 states and 1441 transitions. [2022-01-31 22:10:11,983 INFO L78 Accepts]: Start accepts. Automaton has 1038 states and 1441 transitions. Word has length 90 [2022-01-31 22:10:11,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:10:11,983 INFO L470 AbstractCegarLoop]: Abstraction has 1038 states and 1441 transitions. [2022-01-31 22:10:11,983 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 5.6) internal successors, (84), 14 states have internal predecessors, (84), 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 22:10:11,983 INFO L276 IsEmpty]: Start isEmpty. Operand 1038 states and 1441 transitions. [2022-01-31 22:10:11,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-01-31 22:10:11,985 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:10:11,985 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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] [2022-01-31 22:10:11,985 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-31 22:10:11,985 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:10:11,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:10:11,986 INFO L85 PathProgramCache]: Analyzing trace with hash -1142057971, now seen corresponding path program 1 times [2022-01-31 22:10:11,986 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:10:11,986 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [487626947] [2022-01-31 22:10:11,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:10:12,046 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 22:10:12,076 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 3 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=1, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:10:12,168 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:10:12,578 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 8 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=6, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:10:12,579 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:10:12,639 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 22:10:12,674 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 3 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=1, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:10:12,772 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:10:12,772 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:10:12,772 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:10:12,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:12,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:10:12,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:12,820 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 22:10:13,180 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:10:13,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [487626947] [2022-01-31 22:10:13,180 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [487626947] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:10:13,180 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:10:13,180 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-01-31 22:10:13,180 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497746380] [2022-01-31 22:10:13,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:10:13,181 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-01-31 22:10:13,181 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:10:13,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-01-31 22:10:13,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=423, Unknown=0, NotChecked=0, Total=506 [2022-01-31 22:10:13,181 INFO L87 Difference]: Start difference. First operand 1038 states and 1441 transitions. Second operand has 23 states, 22 states have (on average 5.636363636363637) internal successors, (124), 21 states have internal predecessors, (124), 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 22:10:14,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:10:14,265 INFO L93 Difference]: Finished difference Result 2155 states and 2995 transitions. [2022-01-31 22:10:14,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-31 22:10:14,266 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 5.636363636363637) internal successors, (124), 21 states have internal predecessors, (124), 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 131 [2022-01-31 22:10:14,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:10:14,270 INFO L225 Difference]: With dead ends: 2155 [2022-01-31 22:10:14,270 INFO L226 Difference]: Without dead ends: 1158 [2022-01-31 22:10:14,272 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 401 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=265, Invalid=1457, Unknown=0, NotChecked=0, Total=1722 [2022-01-31 22:10:14,273 INFO L933 BasicCegarLoop]: 192 mSDtfsCounter, 754 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 1780 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 754 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 1829 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1780 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-31 22:10:14,273 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [754 Valid, 229 Invalid, 1829 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 1780 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-31 22:10:14,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1158 states. [2022-01-31 22:10:14,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1158 to 1126. [2022-01-31 22:10:14,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1126 states, 1121 states have (on average 1.3621766280107048) internal successors, (1527), 1121 states have internal predecessors, (1527), 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 22:10:14,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1126 states to 1126 states and 1531 transitions. [2022-01-31 22:10:14,389 INFO L78 Accepts]: Start accepts. Automaton has 1126 states and 1531 transitions. Word has length 131 [2022-01-31 22:10:14,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:10:14,389 INFO L470 AbstractCegarLoop]: Abstraction has 1126 states and 1531 transitions. [2022-01-31 22:10:14,390 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 5.636363636363637) internal successors, (124), 21 states have internal predecessors, (124), 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 22:10:14,390 INFO L276 IsEmpty]: Start isEmpty. Operand 1126 states and 1531 transitions. [2022-01-31 22:10:14,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-01-31 22:10:14,392 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:10:14,392 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-01-31 22:10:14,392 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-31 22:10:14,392 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:10:14,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:10:14,392 INFO L85 PathProgramCache]: Analyzing trace with hash -2098723683, now seen corresponding path program 1 times [2022-01-31 22:10:14,392 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:10:14,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1307040602] [2022-01-31 22:10:14,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:10:14,786 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 8 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=6, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:10:15,178 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 7 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:10:15,239 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 22:10:15,239 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:10:15,637 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 7 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:10:15,712 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 22:10:15,713 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:10:15,713 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:10:15,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:15,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:10:15,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:15,771 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 22:10:16,604 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:10:16,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1307040602] [2022-01-31 22:10:16,605 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1307040602] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:10:16,605 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:10:16,605 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-31 22:10:16,605 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139577243] [2022-01-31 22:10:16,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:10:16,605 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-31 22:10:16,605 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:10:16,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-31 22:10:16,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=510, Unknown=0, NotChecked=0, Total=650 [2022-01-31 22:10:16,606 INFO L87 Difference]: Start difference. First operand 1126 states and 1531 transitions. Second operand has 25 states, 24 states have (on average 5.291666666666667) internal successors, (127), 23 states have internal predecessors, (127), 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 22:10:17,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:10:17,672 INFO L93 Difference]: Finished difference Result 1728 states and 2355 transitions. [2022-01-31 22:10:17,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-31 22:10:17,672 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 5.291666666666667) internal successors, (127), 23 states have internal predecessors, (127), 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 133 [2022-01-31 22:10:17,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:10:17,676 INFO L225 Difference]: With dead ends: 1728 [2022-01-31 22:10:17,676 INFO L226 Difference]: Without dead ends: 1229 [2022-01-31 22:10:17,677 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 71 SyntacticMatches, 6 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 566 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=314, Invalid=1578, Unknown=0, NotChecked=0, Total=1892 [2022-01-31 22:10:17,678 INFO L933 BasicCegarLoop]: 188 mSDtfsCounter, 400 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 1534 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 400 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 1853 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 1534 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 260 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-31 22:10:17,678 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [400 Valid, 228 Invalid, 1853 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 1534 Invalid, 0 Unknown, 260 Unchecked, 0.6s Time] [2022-01-31 22:10:17,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1229 states. [2022-01-31 22:10:17,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1229 to 1172. [2022-01-31 22:10:17,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1172 states, 1167 states have (on average 1.3530419880034277) internal successors, (1579), 1167 states have internal predecessors, (1579), 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 22:10:17,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1172 states to 1172 states and 1583 transitions. [2022-01-31 22:10:17,808 INFO L78 Accepts]: Start accepts. Automaton has 1172 states and 1583 transitions. Word has length 133 [2022-01-31 22:10:17,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:10:17,808 INFO L470 AbstractCegarLoop]: Abstraction has 1172 states and 1583 transitions. [2022-01-31 22:10:17,808 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 5.291666666666667) internal successors, (127), 23 states have internal predecessors, (127), 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 22:10:17,808 INFO L276 IsEmpty]: Start isEmpty. Operand 1172 states and 1583 transitions. [2022-01-31 22:10:17,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-31 22:10:17,810 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:10:17,810 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-01-31 22:10:17,810 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-31 22:10:17,810 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:10:17,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:10:17,811 INFO L85 PathProgramCache]: Analyzing trace with hash 1911784327, now seen corresponding path program 1 times [2022-01-31 22:10:17,811 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:10:17,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [904925334] [2022-01-31 22:10:17,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:10:18,208 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 8 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=6, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:10:18,588 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 7 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:10:18,648 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 22:10:18,648 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:10:19,039 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 7 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:10:19,114 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 22:10:19,115 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:10:19,115 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:10:19,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:19,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:10:19,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:19,165 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 22:10:19,865 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:10:19,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [904925334] [2022-01-31 22:10:19,866 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [904925334] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:10:19,866 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:10:19,866 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-31 22:10:19,866 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399359528] [2022-01-31 22:10:19,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:10:19,866 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-31 22:10:19,866 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:10:19,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-31 22:10:19,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=205, Invalid=665, Unknown=0, NotChecked=0, Total=870 [2022-01-31 22:10:19,867 INFO L87 Difference]: Start difference. First operand 1172 states and 1583 transitions. Second operand has 29 states, 29 states have (on average 4.413793103448276) internal successors, (128), 28 states have internal predecessors, (128), 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 22:10:22,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:10:22,363 INFO L93 Difference]: Finished difference Result 3205 states and 4430 transitions. [2022-01-31 22:10:22,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-01-31 22:10:22,364 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.413793103448276) internal successors, (128), 28 states have internal predecessors, (128), 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 134 [2022-01-31 22:10:22,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:10:22,369 INFO L225 Difference]: With dead ends: 3205 [2022-01-31 22:10:22,369 INFO L226 Difference]: Without dead ends: 2204 [2022-01-31 22:10:22,371 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 882 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=577, Invalid=2393, Unknown=0, NotChecked=0, Total=2970 [2022-01-31 22:10:22,372 INFO L933 BasicCegarLoop]: 330 mSDtfsCounter, 630 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 4605 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 630 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 4642 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 4605 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-01-31 22:10:22,372 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [630 Valid, 372 Invalid, 4642 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 4605 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-01-31 22:10:22,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2204 states. [2022-01-31 22:10:22,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2204 to 2125. [2022-01-31 22:10:22,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2125 states, 2120 states have (on average 1.3783018867924528) internal successors, (2922), 2120 states have internal predecessors, (2922), 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 22:10:22,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2125 states to 2125 states and 2926 transitions. [2022-01-31 22:10:22,616 INFO L78 Accepts]: Start accepts. Automaton has 2125 states and 2926 transitions. Word has length 134 [2022-01-31 22:10:22,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:10:22,616 INFO L470 AbstractCegarLoop]: Abstraction has 2125 states and 2926 transitions. [2022-01-31 22:10:22,616 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.413793103448276) internal successors, (128), 28 states have internal predecessors, (128), 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 22:10:22,616 INFO L276 IsEmpty]: Start isEmpty. Operand 2125 states and 2926 transitions. [2022-01-31 22:10:22,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-31 22:10:22,619 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:10:22,620 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-01-31 22:10:22,620 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-31 22:10:22,620 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:10:22,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:10:22,620 INFO L85 PathProgramCache]: Analyzing trace with hash 638747127, now seen corresponding path program 1 times [2022-01-31 22:10:22,620 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:10:22,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [50729023] [2022-01-31 22:10:22,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:10:23,036 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 8 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=6, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:10:23,139 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:10:23,199 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 22:10:23,199 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:10:23,302 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:10:23,411 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 22:10:23,411 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:10:23,411 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:10:23,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:23,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:10:23,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:23,496 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 22:10:24,379 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:10:24,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [50729023] [2022-01-31 22:10:24,379 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [50729023] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:10:24,379 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:10:24,379 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-31 22:10:24,380 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533047839] [2022-01-31 22:10:24,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:10:24,380 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-31 22:10:24,380 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:10:24,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-31 22:10:24,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=147, Invalid=555, Unknown=0, NotChecked=0, Total=702 [2022-01-31 22:10:24,381 INFO L87 Difference]: Start difference. First operand 2125 states and 2926 transitions. Second operand has 26 states, 25 states have (on average 5.12) internal successors, (128), 24 states have internal predecessors, (128), 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 22:10:26,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:10:26,272 INFO L93 Difference]: Finished difference Result 4283 states and 5931 transitions. [2022-01-31 22:10:26,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-01-31 22:10:26,273 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 5.12) internal successors, (128), 24 states have internal predecessors, (128), 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 134 [2022-01-31 22:10:26,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:10:26,278 INFO L225 Difference]: With dead ends: 4283 [2022-01-31 22:10:26,278 INFO L226 Difference]: Without dead ends: 2339 [2022-01-31 22:10:26,281 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 69 SyntacticMatches, 6 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 679 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=440, Invalid=1912, Unknown=0, NotChecked=0, Total=2352 [2022-01-31 22:10:26,281 INFO L933 BasicCegarLoop]: 213 mSDtfsCounter, 933 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 3113 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 933 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 3863 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 3113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 677 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-01-31 22:10:26,281 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [933 Valid, 275 Invalid, 3863 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 3113 Invalid, 0 Unknown, 677 Unchecked, 1.2s Time] [2022-01-31 22:10:26,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2339 states. [2022-01-31 22:10:26,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2339 to 2177. [2022-01-31 22:10:26,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2177 states, 2172 states have (on average 1.3710865561694292) internal successors, (2978), 2172 states have internal predecessors, (2978), 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 22:10:26,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2177 states to 2177 states and 2982 transitions. [2022-01-31 22:10:26,526 INFO L78 Accepts]: Start accepts. Automaton has 2177 states and 2982 transitions. Word has length 134 [2022-01-31 22:10:26,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:10:26,526 INFO L470 AbstractCegarLoop]: Abstraction has 2177 states and 2982 transitions. [2022-01-31 22:10:26,526 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 5.12) internal successors, (128), 24 states have internal predecessors, (128), 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 22:10:26,526 INFO L276 IsEmpty]: Start isEmpty. Operand 2177 states and 2982 transitions. [2022-01-31 22:10:26,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-31 22:10:26,529 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:10:26,530 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:10:26,530 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-31 22:10:26,530 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:10:26,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:10:26,530 INFO L85 PathProgramCache]: Analyzing trace with hash -2017090149, now seen corresponding path program 1 times [2022-01-31 22:10:26,530 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:10:26,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1553433602] [2022-01-31 22:10:26,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:10:26,596 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 22:10:26,989 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 8 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=6, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:10:27,015 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 3 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=1, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:10:27,104 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:10:27,104 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:10:27,188 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 22:10:27,220 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 3 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=1, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:10:27,316 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:10:27,316 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:10:27,316 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:10:27,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:27,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:10:27,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:27,394 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 22:10:27,776 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:10:27,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1553433602] [2022-01-31 22:10:27,776 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1553433602] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:10:27,776 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:10:27,776 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-01-31 22:10:27,776 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285110579] [2022-01-31 22:10:27,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:10:27,776 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-01-31 22:10:27,776 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:10:27,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-01-31 22:10:27,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=459, Unknown=0, NotChecked=0, Total=552 [2022-01-31 22:10:27,777 INFO L87 Difference]: Start difference. First operand 2177 states and 2982 transitions. Second operand has 23 states, 22 states have (on average 5.363636363636363) internal successors, (118), 21 states have internal predecessors, (118), 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 22:10:29,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:10:29,828 INFO L93 Difference]: Finished difference Result 5150 states and 7147 transitions. [2022-01-31 22:10:29,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-31 22:10:29,829 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 5.363636363636363) internal successors, (118), 21 states have internal predecessors, (118), 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 134 [2022-01-31 22:10:29,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:10:29,836 INFO L225 Difference]: With dead ends: 5150 [2022-01-31 22:10:29,836 INFO L226 Difference]: Without dead ends: 3154 [2022-01-31 22:10:29,840 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 470 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=297, Invalid=1595, Unknown=0, NotChecked=0, Total=1892 [2022-01-31 22:10:29,840 INFO L933 BasicCegarLoop]: 365 mSDtfsCounter, 773 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 3743 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 773 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 3773 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 3743 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-01-31 22:10:29,840 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [773 Valid, 412 Invalid, 3773 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 3743 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-01-31 22:10:29,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3154 states. [2022-01-31 22:10:30,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3154 to 3130. [2022-01-31 22:10:30,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3130 states, 3125 states have (on average 1.38208) internal successors, (4319), 3125 states have internal predecessors, (4319), 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 22:10:30,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3130 states to 3130 states and 4323 transitions. [2022-01-31 22:10:30,183 INFO L78 Accepts]: Start accepts. Automaton has 3130 states and 4323 transitions. Word has length 134 [2022-01-31 22:10:30,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:10:30,183 INFO L470 AbstractCegarLoop]: Abstraction has 3130 states and 4323 transitions. [2022-01-31 22:10:30,183 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 5.363636363636363) internal successors, (118), 21 states have internal predecessors, (118), 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 22:10:30,183 INFO L276 IsEmpty]: Start isEmpty. Operand 3130 states and 4323 transitions. [2022-01-31 22:10:30,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-31 22:10:30,187 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:10:30,187 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-01-31 22:10:30,187 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-31 22:10:30,187 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:10:30,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:10:30,187 INFO L85 PathProgramCache]: Analyzing trace with hash 1781801851, now seen corresponding path program 1 times [2022-01-31 22:10:30,188 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:10:30,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1608174477] [2022-01-31 22:10:30,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:10:30,192 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:10:30,192 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:10:30,192 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:10:30,193 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:10:30,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:30,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:10:30,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:30,213 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 22:10:30,213 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:10:30,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1608174477] [2022-01-31 22:10:30,213 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1608174477] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:10:30,213 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:10:30,213 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 22:10:30,213 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077054741] [2022-01-31 22:10:30,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:10:30,214 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 22:10:30,214 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:10:30,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 22:10:30,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 22:10:30,214 INFO L87 Difference]: Start difference. First operand 3130 states and 4323 transitions. Second operand has 4 states, 4 states have (on average 24.0) internal successors, (96), 3 states have internal predecessors, (96), 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 22:10:31,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:10:31,017 INFO L93 Difference]: Finished difference Result 8494 states and 11753 transitions. [2022-01-31 22:10:31,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 22:10:31,018 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 3 states have internal predecessors, (96), 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 134 [2022-01-31 22:10:31,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:10:31,032 INFO L225 Difference]: With dead ends: 8494 [2022-01-31 22:10:31,032 INFO L226 Difference]: Without dead ends: 5555 [2022-01-31 22:10:31,037 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:10:31,038 INFO L933 BasicCegarLoop]: 251 mSDtfsCounter, 541 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 541 SdHoareTripleChecker+Valid, 258 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-31 22:10:31,038 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [541 Valid, 258 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-31 22:10:31,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5555 states. [2022-01-31 22:10:31,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5555 to 5553. [2022-01-31 22:10:31,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5553 states, 5548 states have (on average 1.3604902667627974) internal successors, (7548), 5548 states have internal predecessors, (7548), 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 22:10:31,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5553 states to 5553 states and 7552 transitions. [2022-01-31 22:10:31,717 INFO L78 Accepts]: Start accepts. Automaton has 5553 states and 7552 transitions. Word has length 134 [2022-01-31 22:10:31,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:10:31,717 INFO L470 AbstractCegarLoop]: Abstraction has 5553 states and 7552 transitions. [2022-01-31 22:10:31,718 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 3 states have internal predecessors, (96), 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 22:10:31,718 INFO L276 IsEmpty]: Start isEmpty. Operand 5553 states and 7552 transitions. [2022-01-31 22:10:31,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2022-01-31 22:10:31,724 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:10:31,724 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, 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] [2022-01-31 22:10:31,724 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-31 22:10:31,724 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:10:31,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:10:31,724 INFO L85 PathProgramCache]: Analyzing trace with hash 1138897871, now seen corresponding path program 1 times [2022-01-31 22:10:31,724 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:10:31,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1529587190] [2022-01-31 22:10:31,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:10:31,803 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 22:10:34,858 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 9 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=7, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:10:34,963 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:10:34,963 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:10:34,963 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:10:34,963 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:10:35,080 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:10:35,081 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:10:35,081 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:10:35,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:35,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:10:35,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:35,146 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 22:10:35,742 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:10:35,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1529587190] [2022-01-31 22:10:35,742 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1529587190] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:10:35,742 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:10:35,742 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-01-31 22:10:35,742 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645685312] [2022-01-31 22:10:35,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:10:35,743 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-01-31 22:10:35,743 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:10:35,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-01-31 22:10:35,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=489, Unknown=0, NotChecked=0, Total=600 [2022-01-31 22:10:35,744 INFO L87 Difference]: Start difference. First operand 5553 states and 7552 transitions. Second operand has 24 states, 23 states have (on average 5.6521739130434785) internal successors, (130), 22 states have internal predecessors, (130), 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 22:10:37,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:10:37,351 INFO L93 Difference]: Finished difference Result 9429 states and 12821 transitions. [2022-01-31 22:10:37,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-31 22:10:37,353 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 5.6521739130434785) internal successors, (130), 22 states have internal predecessors, (130), 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 136 [2022-01-31 22:10:37,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:10:37,360 INFO L225 Difference]: With dead ends: 9429 [2022-01-31 22:10:37,360 INFO L226 Difference]: Without dead ends: 4059 [2022-01-31 22:10:37,367 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 64 SyntacticMatches, 12 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 689 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=352, Invalid=1718, Unknown=0, NotChecked=0, Total=2070 [2022-01-31 22:10:37,367 INFO L933 BasicCegarLoop]: 222 mSDtfsCounter, 720 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 1843 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 720 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 1892 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1843 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-31 22:10:37,367 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [720 Valid, 249 Invalid, 1892 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 1843 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-31 22:10:37,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4059 states. [2022-01-31 22:10:37,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4059 to 3955. [2022-01-31 22:10:37,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3955 states, 3950 states have (on average 1.3448101265822785) internal successors, (5312), 3950 states have internal predecessors, (5312), 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 22:10:37,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3955 states to 3955 states and 5316 transitions. [2022-01-31 22:10:37,852 INFO L78 Accepts]: Start accepts. Automaton has 3955 states and 5316 transitions. Word has length 136 [2022-01-31 22:10:37,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:10:37,852 INFO L470 AbstractCegarLoop]: Abstraction has 3955 states and 5316 transitions. [2022-01-31 22:10:37,852 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 5.6521739130434785) internal successors, (130), 22 states have internal predecessors, (130), 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 22:10:37,852 INFO L276 IsEmpty]: Start isEmpty. Operand 3955 states and 5316 transitions. [2022-01-31 22:10:37,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-31 22:10:37,856 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:10:37,856 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, 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] [2022-01-31 22:10:37,856 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-31 22:10:37,856 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:10:37,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:10:37,856 INFO L85 PathProgramCache]: Analyzing trace with hash 645870515, now seen corresponding path program 1 times [2022-01-31 22:10:37,856 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:10:37,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2066718632] [2022-01-31 22:10:37,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:10:37,925 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 22:10:37,927 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:10:37,927 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:10:38,035 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:10:38,035 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:10:38,167 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=7}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:10:38,281 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:10:38,281 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:10:38,282 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:10:38,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:38,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:10:38,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:38,318 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 22:10:39,014 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:10:39,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2066718632] [2022-01-31 22:10:39,014 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [2066718632] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:10:39,014 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:10:39,014 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-31 22:10:39,014 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884005677] [2022-01-31 22:10:39,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:10:39,015 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-31 22:10:39,015 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:10:39,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-31 22:10:39,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=170, Invalid=642, Unknown=0, NotChecked=0, Total=812 [2022-01-31 22:10:39,015 INFO L87 Difference]: Start difference. First operand 3955 states and 5316 transitions. Second operand has 28 states, 28 states have (on average 4.678571428571429) internal successors, (131), 27 states have internal predecessors, (131), 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 22:10:40,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:10:40,789 INFO L93 Difference]: Finished difference Result 6027 states and 8145 transitions. [2022-01-31 22:10:40,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-01-31 22:10:40,790 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.678571428571429) internal successors, (131), 27 states have internal predecessors, (131), 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 137 [2022-01-31 22:10:40,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:10:40,796 INFO L225 Difference]: With dead ends: 6027 [2022-01-31 22:10:40,796 INFO L226 Difference]: Without dead ends: 4017 [2022-01-31 22:10:40,799 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 57 SyntacticMatches, 12 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1000 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=486, Invalid=2376, Unknown=0, NotChecked=0, Total=2862 [2022-01-31 22:10:40,799 INFO L933 BasicCegarLoop]: 219 mSDtfsCounter, 344 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 2480 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 2501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 2480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-31 22:10:40,799 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [344 Valid, 266 Invalid, 2501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 2480 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-31 22:10:40,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4017 states. [2022-01-31 22:10:41,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4017 to 3961. [2022-01-31 22:10:41,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3961 states, 3956 states have (on average 1.3447927199191103) internal successors, (5320), 3956 states have internal predecessors, (5320), 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 22:10:41,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3961 states to 3961 states and 5324 transitions. [2022-01-31 22:10:41,248 INFO L78 Accepts]: Start accepts. Automaton has 3961 states and 5324 transitions. Word has length 137 [2022-01-31 22:10:41,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:10:41,248 INFO L470 AbstractCegarLoop]: Abstraction has 3961 states and 5324 transitions. [2022-01-31 22:10:41,248 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.678571428571429) internal successors, (131), 27 states have internal predecessors, (131), 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 22:10:41,248 INFO L276 IsEmpty]: Start isEmpty. Operand 3961 states and 5324 transitions. [2022-01-31 22:10:41,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-31 22:10:41,251 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:10:41,251 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, 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] [2022-01-31 22:10:41,251 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-31 22:10:41,251 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:10:41,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:10:41,252 INFO L85 PathProgramCache]: Analyzing trace with hash 915199618, now seen corresponding path program 1 times [2022-01-31 22:10:41,252 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:10:41,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1746288153] [2022-01-31 22:10:41,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:10:41,320 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 22:10:41,707 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 8 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=6, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:10:41,811 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:10:41,812 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:10:41,927 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:10:42,012 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 22:10:42,013 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:10:42,091 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 22:10:42,092 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:10:42,092 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:10:42,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:42,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:10:42,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:42,162 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 22:10:42,730 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:10:42,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1746288153] [2022-01-31 22:10:42,731 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1746288153] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:10:42,731 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:10:42,731 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2022-01-31 22:10:42,731 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952920414] [2022-01-31 22:10:42,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:10:42,731 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-01-31 22:10:42,731 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:10:42,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-01-31 22:10:42,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=631, Unknown=0, NotChecked=0, Total=756 [2022-01-31 22:10:42,732 INFO L87 Difference]: Start difference. First operand 3961 states and 5324 transitions. Second operand has 27 states, 26 states have (on average 5.115384615384615) internal successors, (133), 25 states have internal predecessors, (133), 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 22:10:44,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:10:44,880 INFO L93 Difference]: Finished difference Result 6357 states and 8529 transitions. [2022-01-31 22:10:44,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-31 22:10:44,880 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 5.115384615384615) internal successors, (133), 25 states have internal predecessors, (133), 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 137 [2022-01-31 22:10:44,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:10:44,886 INFO L225 Difference]: With dead ends: 6357 [2022-01-31 22:10:44,886 INFO L226 Difference]: Without dead ends: 4347 [2022-01-31 22:10:44,889 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 722 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=384, Invalid=2268, Unknown=0, NotChecked=0, Total=2652 [2022-01-31 22:10:44,890 INFO L933 BasicCegarLoop]: 228 mSDtfsCounter, 838 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 3402 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 838 SdHoareTripleChecker+Valid, 285 SdHoareTripleChecker+Invalid, 3442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 3402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-01-31 22:10:44,890 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [838 Valid, 285 Invalid, 3442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 3402 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-01-31 22:10:44,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4347 states. [2022-01-31 22:10:45,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4347 to 4077. [2022-01-31 22:10:45,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4077 states, 4072 states have (on average 1.3354616895874263) internal successors, (5438), 4072 states have internal predecessors, (5438), 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 22:10:45,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4077 states to 4077 states and 5442 transitions. [2022-01-31 22:10:45,374 INFO L78 Accepts]: Start accepts. Automaton has 4077 states and 5442 transitions. Word has length 137 [2022-01-31 22:10:45,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:10:45,374 INFO L470 AbstractCegarLoop]: Abstraction has 4077 states and 5442 transitions. [2022-01-31 22:10:45,374 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 5.115384615384615) internal successors, (133), 25 states have internal predecessors, (133), 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 22:10:45,374 INFO L276 IsEmpty]: Start isEmpty. Operand 4077 states and 5442 transitions. [2022-01-31 22:10:45,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-01-31 22:10:45,377 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:10:45,378 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:10:45,378 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-31 22:10:45,378 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:10:45,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:10:45,378 INFO L85 PathProgramCache]: Analyzing trace with hash 1756351832, now seen corresponding path program 1 times [2022-01-31 22:10:45,378 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:10:45,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1041067502] [2022-01-31 22:10:45,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:10:45,791 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 8 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=6, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:10:45,817 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 3 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=1, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:10:45,881 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 22:10:45,983 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:10:45,983 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:10:46,070 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 22:10:46,102 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 3 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=1, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:10:46,212 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:10:46,212 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:10:46,212 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:10:46,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:46,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:10:46,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:46,263 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 22:10:46,977 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:10:46,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1041067502] [2022-01-31 22:10:46,978 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1041067502] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:10:46,978 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:10:46,978 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-31 22:10:46,978 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813023355] [2022-01-31 22:10:46,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:10:46,978 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-31 22:10:46,978 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:10:46,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-31 22:10:46,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=188, Invalid=682, Unknown=0, NotChecked=0, Total=870 [2022-01-31 22:10:46,979 INFO L87 Difference]: Start difference. First operand 4077 states and 5442 transitions. Second operand has 29 states, 29 states have (on average 4.172413793103448) internal successors, (121), 28 states have internal predecessors, (121), 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 22:10:49,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:10:49,468 INFO L93 Difference]: Finished difference Result 9727 states and 13112 transitions. [2022-01-31 22:10:49,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-01-31 22:10:49,468 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.172413793103448) internal successors, (121), 28 states have internal predecessors, (121), 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 138 [2022-01-31 22:10:49,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:10:49,477 INFO L225 Difference]: With dead ends: 9727 [2022-01-31 22:10:49,477 INFO L226 Difference]: Without dead ends: 5891 [2022-01-31 22:10:49,482 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 835 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=529, Invalid=2441, Unknown=0, NotChecked=0, Total=2970 [2022-01-31 22:10:49,483 INFO L933 BasicCegarLoop]: 227 mSDtfsCounter, 668 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 3497 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 668 SdHoareTripleChecker+Valid, 269 SdHoareTripleChecker+Invalid, 3528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 3497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-01-31 22:10:49,483 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [668 Valid, 269 Invalid, 3528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 3497 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-01-31 22:10:49,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5891 states. [2022-01-31 22:10:50,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5891 to 5873. [2022-01-31 22:10:50,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5873 states, 5868 states have (on average 1.3452624403544649) internal successors, (7894), 5868 states have internal predecessors, (7894), 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 22:10:50,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5873 states to 5873 states and 7898 transitions. [2022-01-31 22:10:50,153 INFO L78 Accepts]: Start accepts. Automaton has 5873 states and 7898 transitions. Word has length 138 [2022-01-31 22:10:50,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:10:50,153 INFO L470 AbstractCegarLoop]: Abstraction has 5873 states and 7898 transitions. [2022-01-31 22:10:50,154 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.172413793103448) internal successors, (121), 28 states have internal predecessors, (121), 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 22:10:50,154 INFO L276 IsEmpty]: Start isEmpty. Operand 5873 states and 7898 transitions. [2022-01-31 22:10:50,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-01-31 22:10:50,157 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:10:50,157 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:10:50,157 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-31 22:10:50,157 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:10:50,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:10:50,158 INFO L85 PathProgramCache]: Analyzing trace with hash -633339652, now seen corresponding path program 1 times [2022-01-31 22:10:50,158 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:10:50,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1200152748] [2022-01-31 22:10:50,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:10:50,165 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 3 HavocedVariables, 0 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:10:50,174 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 8 HavocedVariables, 0 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:10:50,181 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 7 HavocedVariables, 0 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:10:50,181 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:10:50,203 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 3 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=1, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:10:50,263 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 22:10:50,263 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:10:50,263 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:10:50,405 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:10:50,405 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:10:50,406 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:10:50,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:50,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:10:50,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:50,453 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 22:10:51,159 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:10:51,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1200152748] [2022-01-31 22:10:51,159 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1200152748] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:10:51,159 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:10:51,159 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2022-01-31 22:10:51,159 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888610785] [2022-01-31 22:10:51,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:10:51,159 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-01-31 22:10:51,160 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:10:51,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-01-31 22:10:51,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=210, Invalid=492, Unknown=0, NotChecked=0, Total=702 [2022-01-31 22:10:51,160 INFO L87 Difference]: Start difference. First operand 5873 states and 7898 transitions. Second operand has 27 states, 27 states have (on average 4.592592592592593) internal successors, (124), 26 states have internal predecessors, (124), 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 22:10:53,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:10:53,269 INFO L93 Difference]: Finished difference Result 12693 states and 16978 transitions. [2022-01-31 22:10:53,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-01-31 22:10:53,270 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 4.592592592592593) internal successors, (124), 26 states have internal predecessors, (124), 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 141 [2022-01-31 22:10:53,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:10:53,281 INFO L225 Difference]: With dead ends: 12693 [2022-01-31 22:10:53,281 INFO L226 Difference]: Without dead ends: 7109 [2022-01-31 22:10:53,289 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 71 SyntacticMatches, 12 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 644 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=597, Invalid=1853, Unknown=0, NotChecked=0, Total=2450 [2022-01-31 22:10:53,290 INFO L933 BasicCegarLoop]: 171 mSDtfsCounter, 909 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 1833 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 909 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 1869 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1833 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-31 22:10:53,290 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [909 Valid, 203 Invalid, 1869 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1833 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-31 22:10:53,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7109 states. [2022-01-31 22:10:54,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7109 to 5889. [2022-01-31 22:10:54,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5889 states, 5884 states have (on average 1.3341264445955132) internal successors, (7850), 5884 states have internal predecessors, (7850), 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 22:10:54,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5889 states to 5889 states and 7854 transitions. [2022-01-31 22:10:54,038 INFO L78 Accepts]: Start accepts. Automaton has 5889 states and 7854 transitions. Word has length 141 [2022-01-31 22:10:54,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:10:54,039 INFO L470 AbstractCegarLoop]: Abstraction has 5889 states and 7854 transitions. [2022-01-31 22:10:54,039 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 4.592592592592593) internal successors, (124), 26 states have internal predecessors, (124), 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 22:10:54,039 INFO L276 IsEmpty]: Start isEmpty. Operand 5889 states and 7854 transitions. [2022-01-31 22:10:54,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-01-31 22:10:54,042 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:10:54,042 INFO L514 BasicCegarLoop]: trace histogram [5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:10:54,042 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-31 22:10:54,064 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:10:54,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:10:54,065 INFO L85 PathProgramCache]: Analyzing trace with hash 884063670, now seen corresponding path program 1 times [2022-01-31 22:10:54,065 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:10:54,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [345033762] [2022-01-31 22:10:54,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:10:54,133 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 22:10:54,239 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:10:54,273 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 3 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=1, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:10:54,273 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:10:54,339 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 22:10:54,752 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 8 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=6, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:10:54,789 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 3 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=1, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:10:54,892 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:10:54,893 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:10:54,893 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:10:54,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:54,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:10:54,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:54,963 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 22:10:55,425 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:10:55,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [345033762] [2022-01-31 22:10:55,425 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [345033762] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:10:55,425 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:10:55,425 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-01-31 22:10:55,425 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802060952] [2022-01-31 22:10:55,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:10:55,426 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-01-31 22:10:55,426 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:10:55,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-01-31 22:10:55,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=372, Unknown=0, NotChecked=0, Total=462 [2022-01-31 22:10:55,427 INFO L87 Difference]: Start difference. First operand 5889 states and 7854 transitions. Second operand has 21 states, 20 states have (on average 6.7) internal successors, (134), 19 states have internal predecessors, (134), 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 22:10:57,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:10:57,717 INFO L93 Difference]: Finished difference Result 9166 states and 12222 transitions. [2022-01-31 22:10:57,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-31 22:10:57,717 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 6.7) internal successors, (134), 19 states have internal predecessors, (134), 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 148 [2022-01-31 22:10:57,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:10:57,725 INFO L225 Difference]: With dead ends: 9166 [2022-01-31 22:10:57,725 INFO L226 Difference]: Without dead ends: 6047 [2022-01-31 22:10:57,730 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 101 SyntacticMatches, 2 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 372 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=275, Invalid=1285, Unknown=0, NotChecked=0, Total=1560 [2022-01-31 22:10:57,730 INFO L933 BasicCegarLoop]: 172 mSDtfsCounter, 837 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 2709 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 837 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 2790 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 2709 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-01-31 22:10:57,730 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [837 Valid, 219 Invalid, 2790 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 2709 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-01-31 22:10:57,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6047 states. [2022-01-31 22:10:58,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6047 to 5885. [2022-01-31 22:10:58,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5885 states, 5880 states have (on average 1.334013605442177) internal successors, (7844), 5880 states have internal predecessors, (7844), 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 22:10:58,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5885 states to 5885 states and 7848 transitions. [2022-01-31 22:10:58,487 INFO L78 Accepts]: Start accepts. Automaton has 5885 states and 7848 transitions. Word has length 148 [2022-01-31 22:10:58,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:10:58,487 INFO L470 AbstractCegarLoop]: Abstraction has 5885 states and 7848 transitions. [2022-01-31 22:10:58,487 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 6.7) internal successors, (134), 19 states have internal predecessors, (134), 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 22:10:58,487 INFO L276 IsEmpty]: Start isEmpty. Operand 5885 states and 7848 transitions. [2022-01-31 22:10:58,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-01-31 22:10:58,491 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:10:58,491 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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] [2022-01-31 22:10:58,491 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-31 22:10:58,491 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:10:58,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:10:58,491 INFO L85 PathProgramCache]: Analyzing trace with hash -2015161466, now seen corresponding path program 1 times [2022-01-31 22:10:58,491 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:10:58,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [185859749] [2022-01-31 22:10:58,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:10:58,584 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 22:10:58,584 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2022-01-31 22:10:59,036 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 8 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=6, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:10:59,072 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 3 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=1, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:10:59,188 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:10:59,272 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 22:10:59,272 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:10:59,273 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:10:59,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:59,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:10:59,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:59,353 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 22:11:00,706 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:11:00,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [185859749] [2022-01-31 22:11:00,706 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [185859749] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:11:00,706 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:11:00,706 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-31 22:11:00,706 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521285443] [2022-01-31 22:11:00,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:11:00,706 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-31 22:11:00,707 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:11:00,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-31 22:11:00,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=128, Invalid=574, Unknown=0, NotChecked=0, Total=702 [2022-01-31 22:11:00,707 INFO L87 Difference]: Start difference. First operand 5885 states and 7848 transitions. Second operand has 26 states, 25 states have (on average 5.56) internal successors, (139), 24 states have internal predecessors, (139), 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 22:11:03,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:11:03,562 INFO L93 Difference]: Finished difference Result 11981 states and 16069 transitions. [2022-01-31 22:11:03,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-01-31 22:11:03,562 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 5.56) internal successors, (139), 24 states have internal predecessors, (139), 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 150 [2022-01-31 22:11:03,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:11:03,572 INFO L225 Difference]: With dead ends: 11981 [2022-01-31 22:11:03,572 INFO L226 Difference]: Without dead ends: 8816 [2022-01-31 22:11:03,576 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 88 SyntacticMatches, 10 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 683 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=397, Invalid=2053, Unknown=0, NotChecked=0, Total=2450 [2022-01-31 22:11:03,577 INFO L933 BasicCegarLoop]: 310 mSDtfsCounter, 1134 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 2381 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1134 SdHoareTripleChecker+Valid, 357 SdHoareTripleChecker+Invalid, 4384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 2381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1934 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-01-31 22:11:03,577 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1134 Valid, 357 Invalid, 4384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 2381 Invalid, 0 Unknown, 1934 Unchecked, 1.1s Time] [2022-01-31 22:11:03,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8816 states. [2022-01-31 22:11:04,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8816 to 8635. [2022-01-31 22:11:04,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8635 states, 8630 states have (on average 1.3385863267670914) internal successors, (11552), 8630 states have internal predecessors, (11552), 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 22:11:04,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8635 states to 8635 states and 11556 transitions. [2022-01-31 22:11:04,727 INFO L78 Accepts]: Start accepts. Automaton has 8635 states and 11556 transitions. Word has length 150 [2022-01-31 22:11:04,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:11:04,727 INFO L470 AbstractCegarLoop]: Abstraction has 8635 states and 11556 transitions. [2022-01-31 22:11:04,727 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 5.56) internal successors, (139), 24 states have internal predecessors, (139), 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 22:11:04,727 INFO L276 IsEmpty]: Start isEmpty. Operand 8635 states and 11556 transitions. [2022-01-31 22:11:04,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-01-31 22:11:04,732 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:11:04,732 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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] [2022-01-31 22:11:04,732 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-31 22:11:04,732 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:11:04,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:11:04,732 INFO L85 PathProgramCache]: Analyzing trace with hash -445259138, now seen corresponding path program 1 times [2022-01-31 22:11:04,733 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:11:04,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [765991001] [2022-01-31 22:11:04,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:11:04,870 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:11:04,870 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2022-01-31 22:11:04,910 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 3 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=1, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:11:05,022 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:11:08,443 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 9 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=7, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:11:08,444 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:11:08,444 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:11:08,444 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:11:08,444 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:11:08,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:11:08,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:11:08,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:11:08,518 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 22:11:09,533 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:11:09,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [765991001] [2022-01-31 22:11:09,533 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [765991001] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:11:09,533 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:11:09,533 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-31 22:11:09,533 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693018237] [2022-01-31 22:11:09,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:11:09,534 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-31 22:11:09,534 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:11:09,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-31 22:11:09,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=240, Invalid=752, Unknown=0, NotChecked=0, Total=992 [2022-01-31 22:11:09,534 INFO L87 Difference]: Start difference. First operand 8635 states and 11556 transitions. Second operand has 31 states, 30 states have (on average 4.666666666666667) internal successors, (140), 29 states have internal predecessors, (140), 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 22:11:16,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:11:16,362 INFO L93 Difference]: Finished difference Result 29886 states and 40003 transitions. [2022-01-31 22:11:16,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-01-31 22:11:16,362 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 30 states have (on average 4.666666666666667) internal successors, (140), 29 states have internal predecessors, (140), 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 150 [2022-01-31 22:11:16,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:11:16,393 INFO L225 Difference]: With dead ends: 29886 [2022-01-31 22:11:16,393 INFO L226 Difference]: Without dead ends: 21459 [2022-01-31 22:11:16,409 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 69 SyntacticMatches, 19 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1755 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=1137, Invalid=4265, Unknown=0, NotChecked=0, Total=5402 [2022-01-31 22:11:16,409 INFO L933 BasicCegarLoop]: 333 mSDtfsCounter, 2046 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 6422 mSolverCounterSat, 142 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2046 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 6564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 142 IncrementalHoareTripleChecker+Valid, 6422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-01-31 22:11:16,410 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2046 Valid, 380 Invalid, 6564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [142 Valid, 6422 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-01-31 22:11:16,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21459 states. [2022-01-31 22:11:18,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21459 to 16762. [2022-01-31 22:11:18,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16762 states, 16757 states have (on average 1.3294145730142628) internal successors, (22277), 16757 states have internal predecessors, (22277), 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 22:11:18,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16762 states to 16762 states and 22281 transitions. [2022-01-31 22:11:18,847 INFO L78 Accepts]: Start accepts. Automaton has 16762 states and 22281 transitions. Word has length 150 [2022-01-31 22:11:18,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:11:18,848 INFO L470 AbstractCegarLoop]: Abstraction has 16762 states and 22281 transitions. [2022-01-31 22:11:18,848 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 30 states have (on average 4.666666666666667) internal successors, (140), 29 states have internal predecessors, (140), 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 22:11:18,848 INFO L276 IsEmpty]: Start isEmpty. Operand 16762 states and 22281 transitions. [2022-01-31 22:11:18,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-31 22:11:18,859 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:11:18,859 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:11:18,859 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-31 22:11:18,859 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:11:18,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:11:18,859 INFO L85 PathProgramCache]: Analyzing trace with hash -296376442, now seen corresponding path program 1 times [2022-01-31 22:11:18,860 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:11:18,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1392917733] [2022-01-31 22:11:18,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:11:18,946 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 22:11:19,072 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 22:11:19,123 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 4 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=2, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:11:19,124 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:11:19,562 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 8 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=6, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:11:19,682 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 22:11:19,760 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 22:11:19,816 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 4 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=2, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:11:19,816 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:11:19,816 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:11:19,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:11:19,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:11:19,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:11:19,912 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 22:11:20,855 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:11:20,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1392917733] [2022-01-31 22:11:20,855 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1392917733] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:11:20,856 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:11:20,856 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-31 22:11:20,856 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335084683] [2022-01-31 22:11:20,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:11:20,856 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-31 22:11:20,856 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:11:20,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-31 22:11:20,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=137, Invalid=565, Unknown=0, NotChecked=0, Total=702 [2022-01-31 22:11:20,857 INFO L87 Difference]: Start difference. First operand 16762 states and 22281 transitions. Second operand has 25 states, 24 states have (on average 5.75) internal successors, (138), 23 states have internal predecessors, (138), 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 22:11:25,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:11:25,115 INFO L93 Difference]: Finished difference Result 34840 states and 46434 transitions. [2022-01-31 22:11:25,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-31 22:11:25,116 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 5.75) internal successors, (138), 23 states have internal predecessors, (138), 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 154 [2022-01-31 22:11:25,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:11:25,138 INFO L225 Difference]: With dead ends: 34840 [2022-01-31 22:11:25,138 INFO L226 Difference]: Without dead ends: 18312 [2022-01-31 22:11:25,162 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 95 SyntacticMatches, 8 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 619 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=367, Invalid=1795, Unknown=0, NotChecked=0, Total=2162 [2022-01-31 22:11:25,163 INFO L933 BasicCegarLoop]: 205 mSDtfsCounter, 758 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 2221 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 758 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 2476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 2221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 192 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-31 22:11:25,163 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [758 Valid, 232 Invalid, 2476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 2221 Invalid, 0 Unknown, 192 Unchecked, 0.9s Time] [2022-01-31 22:11:25,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18312 states. [2022-01-31 22:11:27,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18312 to 17672. [2022-01-31 22:11:27,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17672 states, 17667 states have (on average 1.3337295522725987) internal successors, (23563), 17667 states have internal predecessors, (23563), 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 22:11:27,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17672 states to 17672 states and 23567 transitions. [2022-01-31 22:11:27,654 INFO L78 Accepts]: Start accepts. Automaton has 17672 states and 23567 transitions. Word has length 154 [2022-01-31 22:11:27,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:11:27,655 INFO L470 AbstractCegarLoop]: Abstraction has 17672 states and 23567 transitions. [2022-01-31 22:11:27,655 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 5.75) internal successors, (138), 23 states have internal predecessors, (138), 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 22:11:27,655 INFO L276 IsEmpty]: Start isEmpty. Operand 17672 states and 23567 transitions. [2022-01-31 22:11:27,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-01-31 22:11:27,666 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:11:27,666 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:11:27,666 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-01-31 22:11:27,666 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:11:27,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:11:27,666 INFO L85 PathProgramCache]: Analyzing trace with hash 1448516870, now seen corresponding path program 1 times [2022-01-31 22:11:27,666 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:11:27,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [870946057] [2022-01-31 22:11:27,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:11:27,726 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 22:11:27,727 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:11:27,727 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:11:27,821 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:11:27,845 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 3 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=1, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:11:27,845 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:11:27,906 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 22:11:27,964 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 22:11:27,993 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 3 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=1, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:11:28,090 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:11:28,544 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 8 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=6, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:11:28,544 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:11:28,544 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:11:28,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:11:28,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:11:28,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:11:28,604 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 22:11:29,168 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:11:29,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [870946057] [2022-01-31 22:11:29,168 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [870946057] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:11:29,169 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:11:29,169 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-01-31 22:11:29,169 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750880228] [2022-01-31 22:11:29,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:11:29,169 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-01-31 22:11:29,169 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:11:29,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-01-31 22:11:29,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=477, Unknown=0, NotChecked=0, Total=552 [2022-01-31 22:11:29,170 INFO L87 Difference]: Start difference. First operand 17672 states and 23567 transitions. Second operand has 24 states, 23 states have (on average 6.391304347826087) internal successors, (147), 22 states have internal predecessors, (147), 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 22:11:33,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:11:33,825 INFO L93 Difference]: Finished difference Result 35436 states and 47344 transitions. [2022-01-31 22:11:33,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-31 22:11:33,825 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 6.391304347826087) internal successors, (147), 22 states have internal predecessors, (147), 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 155 [2022-01-31 22:11:33,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:11:33,849 INFO L225 Difference]: With dead ends: 35436 [2022-01-31 22:11:33,849 INFO L226 Difference]: Without dead ends: 18156 [2022-01-31 22:11:33,873 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 109 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 430 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=257, Invalid=1723, Unknown=0, NotChecked=0, Total=1980 [2022-01-31 22:11:33,874 INFO L933 BasicCegarLoop]: 160 mSDtfsCounter, 887 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 3756 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 887 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 3856 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 3756 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-01-31 22:11:33,874 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [887 Valid, 217 Invalid, 3856 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 3756 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-01-31 22:11:33,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18156 states. [2022-01-31 22:11:36,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18156 to 17688. [2022-01-31 22:11:36,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17688 states, 17683 states have (on average 1.3336537917774134) internal successors, (23583), 17683 states have internal predecessors, (23583), 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 22:11:36,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17688 states to 17688 states and 23587 transitions. [2022-01-31 22:11:36,384 INFO L78 Accepts]: Start accepts. Automaton has 17688 states and 23587 transitions. Word has length 155 [2022-01-31 22:11:36,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:11:36,384 INFO L470 AbstractCegarLoop]: Abstraction has 17688 states and 23587 transitions. [2022-01-31 22:11:36,384 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 6.391304347826087) internal successors, (147), 22 states have internal predecessors, (147), 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 22:11:36,384 INFO L276 IsEmpty]: Start isEmpty. Operand 17688 states and 23587 transitions. [2022-01-31 22:11:36,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-01-31 22:11:36,395 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:11:36,396 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:11:36,396 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-01-31 22:11:36,396 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:11:36,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:11:36,396 INFO L85 PathProgramCache]: Analyzing trace with hash -1355397, now seen corresponding path program 1 times [2022-01-31 22:11:36,396 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:11:36,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1420932437] [2022-01-31 22:11:36,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:11:36,457 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 22:11:36,551 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:11:36,575 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 3 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=1, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:11:36,576 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:11:36,576 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:11:36,576 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:11:36,632 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 22:11:36,750 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 22:11:36,778 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 3 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=1, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:11:36,871 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:11:37,319 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 8 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=6, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:11:37,319 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:11:37,319 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:11:37,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:11:37,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:11:37,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:11:37,402 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 22:11:37,944 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:11:37,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1420932437] [2022-01-31 22:11:37,945 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1420932437] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:11:37,945 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:11:37,945 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-31 22:11:37,945 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263732870] [2022-01-31 22:11:37,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:11:37,945 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-31 22:11:37,945 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:11:37,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-31 22:11:37,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=522, Unknown=0, NotChecked=0, Total=600 [2022-01-31 22:11:37,946 INFO L87 Difference]: Start difference. First operand 17688 states and 23587 transitions. Second operand has 25 states, 24 states have (on average 6.166666666666667) internal successors, (148), 23 states have internal predecessors, (148), 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 22:11:42,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:11:42,755 INFO L93 Difference]: Finished difference Result 35972 states and 47958 transitions. [2022-01-31 22:11:42,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-01-31 22:11:42,755 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 6.166666666666667) internal successors, (148), 23 states have internal predecessors, (148), 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 156 [2022-01-31 22:11:42,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:11:42,779 INFO L225 Difference]: With dead ends: 35972 [2022-01-31 22:11:42,779 INFO L226 Difference]: Without dead ends: 18520 [2022-01-31 22:11:42,801 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 108 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 551 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=268, Invalid=1894, Unknown=0, NotChecked=0, Total=2162 [2022-01-31 22:11:42,802 INFO L933 BasicCegarLoop]: 217 mSDtfsCounter, 822 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 3916 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 822 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 3976 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 3916 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-01-31 22:11:42,802 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [822 Valid, 284 Invalid, 3976 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 3916 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-01-31 22:11:42,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18520 states. [2022-01-31 22:11:45,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18520 to 17692. [2022-01-31 22:11:45,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17692 states, 17687 states have (on average 1.3335783343698762) internal successors, (23587), 17687 states have internal predecessors, (23587), 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 22:11:45,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17692 states to 17692 states and 23591 transitions. [2022-01-31 22:11:45,348 INFO L78 Accepts]: Start accepts. Automaton has 17692 states and 23591 transitions. Word has length 156 [2022-01-31 22:11:45,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:11:45,348 INFO L470 AbstractCegarLoop]: Abstraction has 17692 states and 23591 transitions. [2022-01-31 22:11:45,348 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 6.166666666666667) internal successors, (148), 23 states have internal predecessors, (148), 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 22:11:45,348 INFO L276 IsEmpty]: Start isEmpty. Operand 17692 states and 23591 transitions. [2022-01-31 22:11:45,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-01-31 22:11:45,356 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:11:45,357 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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] [2022-01-31 22:11:45,357 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-01-31 22:11:45,357 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:11:45,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:11:45,357 INFO L85 PathProgramCache]: Analyzing trace with hash -1865039240, now seen corresponding path program 1 times [2022-01-31 22:11:45,357 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:11:45,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [549596743] [2022-01-31 22:11:45,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:11:45,390 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 22:11:45,437 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 4 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=3}, 1={1=3}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:11:45,509 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=7}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:11:45,509 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:11:45,580 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=7}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:11:45,672 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 4 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=4}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:11:49,021 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 22:11:49,057 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 22:11:49,057 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:11:49,057 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:11:49,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:11:49,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:11:49,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:11:49,118 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 22:11:49,767 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:11:49,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [549596743] [2022-01-31 22:11:49,767 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [549596743] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:11:49,767 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:11:49,767 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-01-31 22:11:49,768 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242230187] [2022-01-31 22:11:49,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:11:49,768 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-01-31 22:11:49,768 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:11:49,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-01-31 22:11:49,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=445, Unknown=0, NotChecked=0, Total=552 [2022-01-31 22:11:49,768 INFO L87 Difference]: Start difference. First operand 17692 states and 23591 transitions. Second operand has 23 states, 22 states have (on average 6.0) internal successors, (132), 21 states have internal predecessors, (132), 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 22:11:53,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:11:53,963 INFO L93 Difference]: Finished difference Result 21079 states and 27961 transitions. [2022-01-31 22:11:53,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-31 22:11:53,963 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 6.0) internal successors, (132), 21 states have internal predecessors, (132), 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 158 [2022-01-31 22:11:53,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:11:53,986 INFO L225 Difference]: With dead ends: 21079 [2022-01-31 22:11:53,986 INFO L226 Difference]: Without dead ends: 18056 [2022-01-31 22:11:53,995 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 97 SyntacticMatches, 14 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 584 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=328, Invalid=1564, Unknown=0, NotChecked=0, Total=1892 [2022-01-31 22:11:53,997 INFO L933 BasicCegarLoop]: 169 mSDtfsCounter, 835 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 2831 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 835 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 2907 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 2831 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-01-31 22:11:53,998 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [835 Valid, 226 Invalid, 2907 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 2831 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-01-31 22:11:54,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18056 states. [2022-01-31 22:11:56,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18056 to 17746. [2022-01-31 22:11:56,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17746 states, 17741 states have (on average 1.332675722901753) internal successors, (23643), 17741 states have internal predecessors, (23643), 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 22:11:56,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17746 states to 17746 states and 23647 transitions. [2022-01-31 22:11:56,519 INFO L78 Accepts]: Start accepts. Automaton has 17746 states and 23647 transitions. Word has length 158 [2022-01-31 22:11:56,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:11:56,519 INFO L470 AbstractCegarLoop]: Abstraction has 17746 states and 23647 transitions. [2022-01-31 22:11:56,519 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 6.0) internal successors, (132), 21 states have internal predecessors, (132), 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 22:11:56,519 INFO L276 IsEmpty]: Start isEmpty. Operand 17746 states and 23647 transitions. [2022-01-31 22:11:56,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-01-31 22:11:56,527 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:11:56,527 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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] [2022-01-31 22:11:56,528 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-01-31 22:11:56,528 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:11:56,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:11:56,528 INFO L85 PathProgramCache]: Analyzing trace with hash 1398887158, now seen corresponding path program 2 times [2022-01-31 22:11:56,528 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:11:56,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1405494581] [2022-01-31 22:11:56,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:11:56,533 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:11:56,533 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:11:56,533 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:11:56,534 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:11:56,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:11:56,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:11:56,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:11:56,560 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 22:11:56,560 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:11:56,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1405494581] [2022-01-31 22:11:56,560 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1405494581] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:11:56,560 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:11:56,560 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 22:11:56,561 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923008732] [2022-01-31 22:11:56,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:11:56,561 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 22:11:56,561 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:11:56,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 22:11:56,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:11:56,561 INFO L87 Difference]: Start difference. First operand 17746 states and 23647 transitions. Second operand has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 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 22:12:02,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:12:02,312 INFO L93 Difference]: Finished difference Result 50492 states and 67107 transitions. [2022-01-31 22:12:02,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-31 22:12:02,312 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 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 158 [2022-01-31 22:12:02,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:12:02,360 INFO L225 Difference]: With dead ends: 50492 [2022-01-31 22:12:02,360 INFO L226 Difference]: Without dead ends: 32478 [2022-01-31 22:12:02,388 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-01-31 22:12:02,388 INFO L933 BasicCegarLoop]: 314 mSDtfsCounter, 471 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 628 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 471 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 681 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 628 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-31 22:12:02,388 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [471 Valid, 326 Invalid, 681 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 628 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-31 22:12:02,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32478 states. [2022-01-31 22:12:07,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32478 to 30892. [2022-01-31 22:12:07,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30892 states, 30887 states have (on average 1.309968595201865) internal successors, (40461), 30887 states have internal predecessors, (40461), 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 22:12:07,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30892 states to 30892 states and 40465 transitions. [2022-01-31 22:12:07,160 INFO L78 Accepts]: Start accepts. Automaton has 30892 states and 40465 transitions. Word has length 158 [2022-01-31 22:12:07,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:12:07,160 INFO L470 AbstractCegarLoop]: Abstraction has 30892 states and 40465 transitions. [2022-01-31 22:12:07,160 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 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 22:12:07,160 INFO L276 IsEmpty]: Start isEmpty. Operand 30892 states and 40465 transitions. [2022-01-31 22:12:07,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2022-01-31 22:12:07,171 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:12:07,171 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 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] [2022-01-31 22:12:07,171 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-01-31 22:12:07,171 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:12:07,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:12:07,171 INFO L85 PathProgramCache]: Analyzing trace with hash -1242975763, now seen corresponding path program 1 times [2022-01-31 22:12:07,171 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:12:07,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [666906249] [2022-01-31 22:12:07,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:12:07,186 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 4 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=3}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:12:07,187 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:12:07,187 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:12:07,239 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 4 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=2, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:12:07,239 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:12:07,250 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 4 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=2, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:12:07,250 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:12:07,250 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:12:07,308 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 4 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=3}, 1={1=3}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:12:07,308 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:12:07,308 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:12:07,308 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:12:07,308 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:12:07,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:12:07,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:12:07,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:12:07,362 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 22:12:08,237 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:12:08,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [666906249] [2022-01-31 22:12:08,237 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [666906249] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:12:08,237 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:12:08,237 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-31 22:12:08,237 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15285406] [2022-01-31 22:12:08,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:12:08,238 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-31 22:12:08,239 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:12:08,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-31 22:12:08,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=507, Unknown=0, NotChecked=0, Total=600 [2022-01-31 22:12:08,239 INFO L87 Difference]: Start difference. First operand 30892 states and 40465 transitions. Second operand has 25 states, 24 states have (on average 5.916666666666667) internal successors, (142), 23 states have internal predecessors, (142), 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 22:12:15,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:12:15,226 INFO L93 Difference]: Finished difference Result 37219 states and 48397 transitions. [2022-01-31 22:12:15,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-01-31 22:12:15,227 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 5.916666666666667) internal successors, (142), 23 states have internal predecessors, (142), 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 159 [2022-01-31 22:12:15,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:12:15,272 INFO L225 Difference]: With dead ends: 37219 [2022-01-31 22:12:15,273 INFO L226 Difference]: Without dead ends: 31844 [2022-01-31 22:12:15,286 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 90 SyntacticMatches, 21 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 685 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=313, Invalid=1849, Unknown=0, NotChecked=0, Total=2162 [2022-01-31 22:12:15,287 INFO L933 BasicCegarLoop]: 176 mSDtfsCounter, 862 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 3874 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 862 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 3963 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 3874 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-01-31 22:12:15,287 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [862 Valid, 198 Invalid, 3963 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 3874 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-01-31 22:12:15,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31844 states. [2022-01-31 22:12:19,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31844 to 30960. [2022-01-31 22:12:19,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30960 states, 30955 states have (on average 1.3092876756582135) internal successors, (40529), 30955 states have internal predecessors, (40529), 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 22:12:19,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30960 states to 30960 states and 40533 transitions. [2022-01-31 22:12:19,997 INFO L78 Accepts]: Start accepts. Automaton has 30960 states and 40533 transitions. Word has length 159 [2022-01-31 22:12:19,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:12:19,998 INFO L470 AbstractCegarLoop]: Abstraction has 30960 states and 40533 transitions. [2022-01-31 22:12:19,998 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 5.916666666666667) internal successors, (142), 23 states have internal predecessors, (142), 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 22:12:19,998 INFO L276 IsEmpty]: Start isEmpty. Operand 30960 states and 40533 transitions. [2022-01-31 22:12:20,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-01-31 22:12:20,011 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:12:20,011 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:12:20,011 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-01-31 22:12:20,011 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:12:20,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:12:20,011 INFO L85 PathProgramCache]: Analyzing trace with hash -1792861004, now seen corresponding path program 1 times [2022-01-31 22:12:20,011 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:12:20,011 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1045917596] [2022-01-31 22:12:20,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:12:20,078 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 22:12:20,079 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:12:20,079 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:12:20,102 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 3 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=1, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:12:20,133 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 3 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=1, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:12:20,133 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:12:20,204 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 22:12:20,624 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 8 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=6, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:12:20,659 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 3 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=1, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:12:20,685 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 3 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=1, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:12:20,685 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:12:20,685 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:12:20,686 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:12:20,686 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:12:20,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:12:20,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:12:20,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:12:20,747 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 22:12:21,476 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:12:21,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1045917596] [2022-01-31 22:12:21,476 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1045917596] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:12:21,476 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:12:21,476 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-31 22:12:21,476 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659881789] [2022-01-31 22:12:21,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:12:21,477 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-31 22:12:21,477 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:12:21,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-31 22:12:21,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=598, Unknown=0, NotChecked=0, Total=702 [2022-01-31 22:12:21,477 INFO L87 Difference]: Start difference. First operand 30960 states and 40533 transitions. Second operand has 26 states, 25 states have (on average 6.36) internal successors, (159), 24 states have internal predecessors, (159), 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 22:12:28,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:12:28,685 INFO L93 Difference]: Finished difference Result 53182 states and 69310 transitions. [2022-01-31 22:12:28,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-01-31 22:12:28,686 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 6.36) internal successors, (159), 24 states have internal predecessors, (159), 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 173 [2022-01-31 22:12:28,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:12:28,732 INFO L225 Difference]: With dead ends: 53182 [2022-01-31 22:12:28,732 INFO L226 Difference]: Without dead ends: 31928 [2022-01-31 22:12:28,760 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 121 SyntacticMatches, 2 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 641 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=329, Invalid=2121, Unknown=0, NotChecked=0, Total=2450 [2022-01-31 22:12:28,761 INFO L933 BasicCegarLoop]: 174 mSDtfsCounter, 832 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 4194 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 832 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 4275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 4194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-01-31 22:12:28,761 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [832 Valid, 251 Invalid, 4275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 4194 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-01-31 22:12:28,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31928 states. [2022-01-31 22:12:33,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31928 to 31060. [2022-01-31 22:12:33,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31060 states, 31055 states have (on average 1.3084205441957817) internal successors, (40633), 31055 states have internal predecessors, (40633), 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 22:12:33,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31060 states to 31060 states and 40637 transitions. [2022-01-31 22:12:33,565 INFO L78 Accepts]: Start accepts. Automaton has 31060 states and 40637 transitions. Word has length 173 [2022-01-31 22:12:33,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:12:33,565 INFO L470 AbstractCegarLoop]: Abstraction has 31060 states and 40637 transitions. [2022-01-31 22:12:33,565 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 6.36) internal successors, (159), 24 states have internal predecessors, (159), 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 22:12:33,565 INFO L276 IsEmpty]: Start isEmpty. Operand 31060 states and 40637 transitions. [2022-01-31 22:12:33,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-31 22:12:33,578 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:12:33,579 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:12:33,579 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-01-31 22:12:33,579 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:12:33,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:12:33,579 INFO L85 PathProgramCache]: Analyzing trace with hash -525227936, now seen corresponding path program 1 times [2022-01-31 22:12:33,579 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:12:33,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1340486896] [2022-01-31 22:12:33,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:12:33,646 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 22:12:33,670 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 3 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=1, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:12:33,701 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 3 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=1, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:12:33,701 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:12:33,701 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:12:33,701 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:12:33,767 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 22:12:34,176 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 8 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=6, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:12:34,210 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 3 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=1, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:12:34,210 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:12:34,210 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:12:34,236 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 3 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=1, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:12:34,237 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:12:34,237 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:12:34,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:12:34,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:12:34,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:12:34,323 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 22:12:35,050 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:12:35,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1340486896] [2022-01-31 22:12:35,053 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1340486896] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:12:35,053 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:12:35,053 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-31 22:12:35,053 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078897851] [2022-01-31 22:12:35,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:12:35,054 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-31 22:12:35,054 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:12:35,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-31 22:12:35,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=595, Unknown=0, NotChecked=0, Total=702 [2022-01-31 22:12:35,054 INFO L87 Difference]: Start difference. First operand 31060 states and 40637 transitions. Second operand has 26 states, 25 states have (on average 6.48) internal successors, (162), 24 states have internal predecessors, (162), 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 22:12:42,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:12:42,571 INFO L93 Difference]: Finished difference Result 53382 states and 69518 transitions. [2022-01-31 22:12:42,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-01-31 22:12:42,571 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 6.48) internal successors, (162), 24 states have internal predecessors, (162), 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 176 [2022-01-31 22:12:42,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:12:42,615 INFO L225 Difference]: With dead ends: 53382 [2022-01-31 22:12:42,615 INFO L226 Difference]: Without dead ends: 32028 [2022-01-31 22:12:42,642 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 124 SyntacticMatches, 2 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 658 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=338, Invalid=2112, Unknown=0, NotChecked=0, Total=2450 [2022-01-31 22:12:42,642 INFO L933 BasicCegarLoop]: 175 mSDtfsCounter, 829 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 4497 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 829 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 4582 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 4497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-01-31 22:12:42,642 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [829 Valid, 257 Invalid, 4582 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 4497 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-01-31 22:12:42,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32028 states. [2022-01-31 22:12:47,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32028 to 31084. [2022-01-31 22:12:47,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31084 states, 31079 states have (on average 1.3081823739502558) internal successors, (40657), 31079 states have internal predecessors, (40657), 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 22:12:47,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31084 states to 31084 states and 40661 transitions. [2022-01-31 22:12:47,494 INFO L78 Accepts]: Start accepts. Automaton has 31084 states and 40661 transitions. Word has length 176 [2022-01-31 22:12:47,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:12:47,494 INFO L470 AbstractCegarLoop]: Abstraction has 31084 states and 40661 transitions. [2022-01-31 22:12:47,494 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 6.48) internal successors, (162), 24 states have internal predecessors, (162), 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 22:12:47,494 INFO L276 IsEmpty]: Start isEmpty. Operand 31084 states and 40661 transitions. [2022-01-31 22:12:47,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2022-01-31 22:12:47,508 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:12:47,508 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:12:47,508 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-01-31 22:12:47,508 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:12:47,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:12:47,508 INFO L85 PathProgramCache]: Analyzing trace with hash 1992484216, now seen corresponding path program 1 times [2022-01-31 22:12:47,508 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:12:47,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1333200495] [2022-01-31 22:12:47,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:12:47,545 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 3 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=1, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:12:47,545 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:12:47,545 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:12:47,551 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 3 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=1, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:12:47,658 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:12:47,658 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:12:47,694 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 3 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=2}, 1={1=3}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:12:47,700 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 3 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=3}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:12:51,087 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 9 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=7, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:12:51,208 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:12:51,268 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 22:12:51,268 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:12:51,268 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:12:51,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:12:51,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:12:51,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:12:51,347 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 22:12:52,531 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:12:52,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1333200495] [2022-01-31 22:12:52,531 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1333200495] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:12:52,532 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:12:52,532 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-31 22:12:52,532 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121354057] [2022-01-31 22:12:52,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:12:52,532 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-31 22:12:52,532 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:12:52,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-31 22:12:52,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=148, Invalid=782, Unknown=0, NotChecked=0, Total=930 [2022-01-31 22:12:52,533 INFO L87 Difference]: Start difference. First operand 31084 states and 40661 transitions. Second operand has 29 states, 28 states have (on average 5.785714285714286) internal successors, (162), 27 states have internal predecessors, (162), 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 22:13:00,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:13:00,775 INFO L93 Difference]: Finished difference Result 65000 states and 84968 transitions. [2022-01-31 22:13:00,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-31 22:13:00,775 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 5.785714285714286) internal successors, (162), 27 states have internal predecessors, (162), 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 177 [2022-01-31 22:13:00,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:13:00,825 INFO L225 Difference]: With dead ends: 65000 [2022-01-31 22:13:00,825 INFO L226 Difference]: Without dead ends: 34152 [2022-01-31 22:13:00,863 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 96 SyntacticMatches, 28 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1361 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=450, Invalid=2742, Unknown=0, NotChecked=0, Total=3192 [2022-01-31 22:13:00,863 INFO L933 BasicCegarLoop]: 214 mSDtfsCounter, 908 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 4602 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 908 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 4702 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 4602 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-01-31 22:13:00,864 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [908 Valid, 261 Invalid, 4702 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 4602 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-01-31 22:13:00,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34152 states. [2022-01-31 22:13:05,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34152 to 31348. [2022-01-31 22:13:05,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31348 states, 31343 states have (on average 1.303544651118272) internal successors, (40857), 31343 states have internal predecessors, (40857), 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 22:13:05,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31348 states to 31348 states and 40861 transitions. [2022-01-31 22:13:05,857 INFO L78 Accepts]: Start accepts. Automaton has 31348 states and 40861 transitions. Word has length 177 [2022-01-31 22:13:05,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:13:05,858 INFO L470 AbstractCegarLoop]: Abstraction has 31348 states and 40861 transitions. [2022-01-31 22:13:05,858 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 5.785714285714286) internal successors, (162), 27 states have internal predecessors, (162), 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 22:13:05,858 INFO L276 IsEmpty]: Start isEmpty. Operand 31348 states and 40861 transitions. [2022-01-31 22:13:05,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-01-31 22:13:05,873 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:13:05,873 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:13:05,873 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-01-31 22:13:05,873 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:13:05,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:13:05,873 INFO L85 PathProgramCache]: Analyzing trace with hash 922627194, now seen corresponding path program 1 times [2022-01-31 22:13:05,873 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:13:05,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1822661887] [2022-01-31 22:13:05,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:13:05,878 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:13:05,878 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:13:05,878 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:13:05,879 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:13:05,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:13:05,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:13:05,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:13:05,902 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 22:13:05,902 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:13:05,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1822661887] [2022-01-31 22:13:05,902 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1822661887] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:13:05,902 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:13:05,902 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 22:13:05,902 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636474205] [2022-01-31 22:13:05,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:13:05,903 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 22:13:05,903 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:13:05,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 22:13:05,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 22:13:05,903 INFO L87 Difference]: Start difference. First operand 31348 states and 40861 transitions. Second operand has 4 states, 4 states have (on average 27.25) internal successors, (109), 3 states have internal predecessors, (109), 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 22:13:11,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:13:11,740 INFO L93 Difference]: Finished difference Result 63576 states and 83048 transitions. [2022-01-31 22:13:11,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 22:13:11,741 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 3 states have internal predecessors, (109), 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 178 [2022-01-31 22:13:11,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:13:11,788 INFO L225 Difference]: With dead ends: 63576 [2022-01-31 22:13:11,788 INFO L226 Difference]: Without dead ends: 32464 [2022-01-31 22:13:11,831 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:13:11,832 INFO L933 BasicCegarLoop]: 194 mSDtfsCounter, 379 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 379 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-31 22:13:11,832 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [379 Valid, 201 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-31 22:13:11,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32464 states. [2022-01-31 22:13:16,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32464 to 27702. [2022-01-31 22:13:16,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27702 states, 27697 states have (on average 1.2487634039787703) internal successors, (34587), 27697 states have internal predecessors, (34587), 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 22:13:16,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27702 states to 27702 states and 34591 transitions. [2022-01-31 22:13:16,735 INFO L78 Accepts]: Start accepts. Automaton has 27702 states and 34591 transitions. Word has length 178 [2022-01-31 22:13:16,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:13:16,735 INFO L470 AbstractCegarLoop]: Abstraction has 27702 states and 34591 transitions. [2022-01-31 22:13:16,735 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 3 states have internal predecessors, (109), 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 22:13:16,735 INFO L276 IsEmpty]: Start isEmpty. Operand 27702 states and 34591 transitions. [2022-01-31 22:13:16,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-01-31 22:13:16,749 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:13:16,749 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:13:16,749 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-01-31 22:13:16,750 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:13:16,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:13:16,750 INFO L85 PathProgramCache]: Analyzing trace with hash 965319883, now seen corresponding path program 1 times [2022-01-31 22:13:16,750 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:13:16,750 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1363475661] [2022-01-31 22:13:16,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:13:16,811 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 22:13:16,861 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 22:13:16,926 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 22:13:16,951 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 3 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=1, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:13:16,965 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 11 HavocedVariables, 0 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:13:16,965 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:13:17,018 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 22:13:17,066 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 22:13:17,125 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 22:13:17,138 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 11 HavocedVariables, 0 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:13:17,161 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 3 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=1, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:13:17,559 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 8 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=6, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:13:17,560 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:13:17,560 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:13:17,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:13:17,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:13:17,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:13:17,641 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 22:13:18,286 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:13:18,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1363475661] [2022-01-31 22:13:18,286 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1363475661] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:13:18,286 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:13:18,286 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2022-01-31 22:13:18,286 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109387638] [2022-01-31 22:13:18,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:13:18,286 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-01-31 22:13:18,286 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:13:18,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-01-31 22:13:18,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=622, Unknown=0, NotChecked=0, Total=702 [2022-01-31 22:13:18,287 INFO L87 Difference]: Start difference. First operand 27702 states and 34591 transitions. Second operand has 27 states, 26 states have (on average 6.3076923076923075) internal successors, (164), 25 states have internal predecessors, (164), 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 22:13:26,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:13:26,251 INFO L93 Difference]: Finished difference Result 57108 states and 71248 transitions. [2022-01-31 22:13:26,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-31 22:13:26,251 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 6.3076923076923075) internal successors, (164), 25 states have internal predecessors, (164), 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 196 [2022-01-31 22:13:26,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:13:26,292 INFO L225 Difference]: With dead ends: 57108 [2022-01-31 22:13:26,293 INFO L226 Difference]: Without dead ends: 29642 [2022-01-31 22:13:26,329 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 147 SyntacticMatches, 1 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 647 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=278, Invalid=2272, Unknown=0, NotChecked=0, Total=2550 [2022-01-31 22:13:26,329 INFO L933 BasicCegarLoop]: 214 mSDtfsCounter, 905 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 4872 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 905 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 4930 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 4872 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-01-31 22:13:26,329 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [905 Valid, 296 Invalid, 4930 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 4872 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-01-31 22:13:26,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29642 states. [2022-01-31 22:13:31,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29642 to 27802. [2022-01-31 22:13:31,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27802 states, 27797 states have (on average 1.2480123754361983) internal successors, (34691), 27797 states have internal predecessors, (34691), 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 22:13:31,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27802 states to 27802 states and 34695 transitions. [2022-01-31 22:13:31,151 INFO L78 Accepts]: Start accepts. Automaton has 27802 states and 34695 transitions. Word has length 196 [2022-01-31 22:13:31,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:13:31,151 INFO L470 AbstractCegarLoop]: Abstraction has 27802 states and 34695 transitions. [2022-01-31 22:13:31,151 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 6.3076923076923075) internal successors, (164), 25 states have internal predecessors, (164), 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 22:13:31,151 INFO L276 IsEmpty]: Start isEmpty. Operand 27802 states and 34695 transitions. [2022-01-31 22:13:31,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-01-31 22:13:31,166 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:13:31,166 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:13:31,166 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-01-31 22:13:31,166 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:13:31,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:13:31,166 INFO L85 PathProgramCache]: Analyzing trace with hash -1901584278, now seen corresponding path program 1 times [2022-01-31 22:13:31,166 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:13:31,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1106823687] [2022-01-31 22:13:31,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:13:31,226 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 22:13:34,590 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 8 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=6, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:13:34,639 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 22:13:34,640 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:13:34,640 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:13:34,664 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 3 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=1, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:13:34,664 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:13:34,731 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 22:13:34,779 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 22:13:34,780 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:13:34,780 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:13:38,163 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 8 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=6, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:13:38,188 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 3 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=1, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:13:38,589 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 8 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=6, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:13:38,590 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:13:38,590 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:13:38,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:13:38,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:13:38,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:13:38,652 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 22:13:39,419 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:13:39,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1106823687] [2022-01-31 22:13:39,420 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1106823687] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:13:39,420 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:13:39,420 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-31 22:13:39,420 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035820307] [2022-01-31 22:13:39,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:13:39,420 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-31 22:13:39,420 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:13:39,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-31 22:13:39,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=672, Unknown=0, NotChecked=0, Total=756 [2022-01-31 22:13:39,421 INFO L87 Difference]: Start difference. First operand 27802 states and 34695 transitions. Second operand has 28 states, 27 states have (on average 6.074074074074074) internal successors, (164), 26 states have internal predecessors, (164), 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 22:13:47,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:13:47,774 INFO L93 Difference]: Finished difference Result 57212 states and 71352 transitions. [2022-01-31 22:13:47,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-01-31 22:13:47,774 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 6.074074074074074) internal successors, (164), 26 states have internal predecessors, (164), 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 196 [2022-01-31 22:13:47,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:13:47,816 INFO L225 Difference]: With dead ends: 57212 [2022-01-31 22:13:47,816 INFO L226 Difference]: Without dead ends: 29646 [2022-01-31 22:13:47,853 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 145 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 716 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=292, Invalid=2464, Unknown=0, NotChecked=0, Total=2756 [2022-01-31 22:13:47,853 INFO L933 BasicCegarLoop]: 215 mSDtfsCounter, 907 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 5607 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 907 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 5656 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 5607 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-01-31 22:13:47,853 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [907 Valid, 312 Invalid, 5656 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 5607 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-01-31 22:13:47,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29646 states. [2022-01-31 22:13:52,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29646 to 27810. [2022-01-31 22:13:52,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27810 states, 27805 states have (on average 1.2480848768207158) internal successors, (34703), 27805 states have internal predecessors, (34703), 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 22:13:52,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27810 states to 27810 states and 34707 transitions. [2022-01-31 22:13:52,693 INFO L78 Accepts]: Start accepts. Automaton has 27810 states and 34707 transitions. Word has length 196 [2022-01-31 22:13:52,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:13:52,694 INFO L470 AbstractCegarLoop]: Abstraction has 27810 states and 34707 transitions. [2022-01-31 22:13:52,694 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 6.074074074074074) internal successors, (164), 26 states have internal predecessors, (164), 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 22:13:52,694 INFO L276 IsEmpty]: Start isEmpty. Operand 27810 states and 34707 transitions. [2022-01-31 22:13:52,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-01-31 22:13:52,708 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:13:52,708 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:13:52,708 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-01-31 22:13:52,708 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:13:52,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:13:52,709 INFO L85 PathProgramCache]: Analyzing trace with hash -1296253367, now seen corresponding path program 1 times [2022-01-31 22:13:52,709 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:13:52,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1340204724] [2022-01-31 22:13:52,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:13:52,771 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 22:13:52,771 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:13:52,771 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:13:52,820 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 22:13:52,874 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 22:13:52,897 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 3 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=1, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:13:52,897 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:13:52,953 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 22:13:53,004 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 22:13:53,004 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:13:53,005 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:13:53,005 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:13:53,005 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:13:53,032 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 3 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=1, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:13:53,435 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 8 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=6, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:13:53,435 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:13:53,435 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:13:53,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:13:53,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:13:53,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:13:53,503 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 22:13:54,618 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:13:54,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1340204724] [2022-01-31 22:13:54,618 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1340204724] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:13:54,618 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:13:54,619 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-31 22:13:54,619 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900859545] [2022-01-31 22:13:54,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:13:54,619 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-31 22:13:54,619 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:13:54,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-31 22:13:54,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=720, Unknown=0, NotChecked=0, Total=812 [2022-01-31 22:13:54,619 INFO L87 Difference]: Start difference. First operand 27810 states and 34707 transitions. Second operand has 29 states, 28 states have (on average 6.678571428571429) internal successors, (187), 27 states have internal predecessors, (187), 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 22:14:02,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:14:02,587 INFO L93 Difference]: Finished difference Result 56368 states and 70252 transitions. [2022-01-31 22:14:02,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-31 22:14:02,587 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 6.678571428571429) internal successors, (187), 27 states have internal predecessors, (187), 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 196 [2022-01-31 22:14:02,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:14:02,630 INFO L225 Difference]: With dead ends: 56368 [2022-01-31 22:14:02,630 INFO L226 Difference]: Without dead ends: 28794 [2022-01-31 22:14:02,660 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 145 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 651 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=318, Invalid=2652, Unknown=0, NotChecked=0, Total=2970 [2022-01-31 22:14:02,660 INFO L933 BasicCegarLoop]: 159 mSDtfsCounter, 994 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 5249 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 994 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 5341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 5249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-01-31 22:14:02,660 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [994 Valid, 191 Invalid, 5341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 5249 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-01-31 22:14:02,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28794 states. [2022-01-31 22:14:07,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28794 to 27918. [2022-01-31 22:14:07,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27918 states, 27913 states have (on average 1.2471249955217998) internal successors, (34811), 27913 states have internal predecessors, (34811), 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 22:14:07,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27918 states to 27918 states and 34815 transitions. [2022-01-31 22:14:07,591 INFO L78 Accepts]: Start accepts. Automaton has 27918 states and 34815 transitions. Word has length 196 [2022-01-31 22:14:07,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:14:07,591 INFO L470 AbstractCegarLoop]: Abstraction has 27918 states and 34815 transitions. [2022-01-31 22:14:07,591 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 6.678571428571429) internal successors, (187), 27 states have internal predecessors, (187), 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 22:14:07,591 INFO L276 IsEmpty]: Start isEmpty. Operand 27918 states and 34815 transitions. [2022-01-31 22:14:07,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-01-31 22:14:07,605 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:14:07,606 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:14:07,606 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-01-31 22:14:07,606 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:14:07,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:14:07,606 INFO L85 PathProgramCache]: Analyzing trace with hash -1257342108, now seen corresponding path program 1 times [2022-01-31 22:14:07,606 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:14:07,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1848982505] [2022-01-31 22:14:07,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:14:07,669 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 22:14:07,720 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 22:14:07,721 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:14:07,721 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:14:07,746 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 3 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=1, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:14:07,746 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:14:07,746 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:14:07,747 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:14:07,806 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 22:14:44,582 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 22:14:44,635 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 22:14:44,691 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 22:14:44,716 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 3 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=1, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:14:45,127 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 8 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=6, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:14:45,127 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:14:45,127 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:14:45,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:14:45,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:14:45,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:14:45,195 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 22:14:46,271 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:14:46,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1848982505] [2022-01-31 22:14:46,272 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1848982505] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:14:46,272 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:14:46,272 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-31 22:14:46,272 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619627248] [2022-01-31 22:14:46,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:14:46,272 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-31 22:14:46,272 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:14:46,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-31 22:14:46,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=839, Unknown=0, NotChecked=0, Total=930 [2022-01-31 22:14:46,273 INFO L87 Difference]: Start difference. First operand 27918 states and 34815 transitions. Second operand has 31 states, 30 states have (on average 6.266666666666667) internal successors, (188), 29 states have internal predecessors, (188), 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 22:14:55,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:14:55,780 INFO L93 Difference]: Finished difference Result 57516 states and 71660 transitions. [2022-01-31 22:14:55,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-31 22:14:55,780 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 30 states have (on average 6.266666666666667) internal successors, (188), 29 states have internal predecessors, (188), 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 197 [2022-01-31 22:14:55,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:14:55,828 INFO L225 Difference]: With dead ends: 57516 [2022-01-31 22:14:55,829 INFO L226 Difference]: Without dead ends: 29834 [2022-01-31 22:14:55,863 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 144 SyntacticMatches, 1 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 880 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=319, Invalid=3103, Unknown=0, NotChecked=0, Total=3422 [2022-01-31 22:14:55,863 INFO L933 BasicCegarLoop]: 225 mSDtfsCounter, 899 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 5693 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 899 SdHoareTripleChecker+Valid, 307 SdHoareTripleChecker+Invalid, 5756 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 5693 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-01-31 22:14:55,864 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [899 Valid, 307 Invalid, 5756 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 5693 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-01-31 22:14:55,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29834 states. [2022-01-31 22:15:00,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29834 to 27918. [2022-01-31 22:15:00,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27918 states, 27913 states have (on average 1.2471249955217998) internal successors, (34811), 27913 states have internal predecessors, (34811), 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 22:15:00,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27918 states to 27918 states and 34815 transitions. [2022-01-31 22:15:00,848 INFO L78 Accepts]: Start accepts. Automaton has 27918 states and 34815 transitions. Word has length 197 [2022-01-31 22:15:00,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:15:00,848 INFO L470 AbstractCegarLoop]: Abstraction has 27918 states and 34815 transitions. [2022-01-31 22:15:00,848 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 30 states have (on average 6.266666666666667) internal successors, (188), 29 states have internal predecessors, (188), 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 22:15:00,848 INFO L276 IsEmpty]: Start isEmpty. Operand 27918 states and 34815 transitions. [2022-01-31 22:15:00,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-01-31 22:15:00,865 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:15:00,865 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:15:00,865 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-01-31 22:15:00,865 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:15:00,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:15:00,866 INFO L85 PathProgramCache]: Analyzing trace with hash -250564618, now seen corresponding path program 1 times [2022-01-31 22:15:00,866 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:15:00,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1724156731] [2022-01-31 22:15:00,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:15:00,928 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 22:15:00,978 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 22:15:01,007 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 3 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=1, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:15:01,024 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 11 HavocedVariables, 0 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:15:01,141 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 22:15:01,141 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:15:01,204 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 22:15:01,204 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:15:01,204 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:15:01,257 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 22:15:01,271 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 11 HavocedVariables, 0 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:15:01,295 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 3 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=1, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:15:01,708 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 8 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=6, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:15:01,709 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:15:01,709 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:15:01,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:15:01,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:15:01,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:15:01,771 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 22:15:02,496 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:15:02,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1724156731] [2022-01-31 22:15:02,497 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1724156731] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:15:02,497 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:15:02,497 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-31 22:15:02,497 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037323839] [2022-01-31 22:15:02,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:15:02,497 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-31 22:15:02,497 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:15:02,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-31 22:15:02,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=565, Unknown=0, NotChecked=0, Total=650 [2022-01-31 22:15:02,498 INFO L87 Difference]: Start difference. First operand 27918 states and 34815 transitions. Second operand has 26 states, 25 states have (on average 6.6) internal successors, (165), 24 states have internal predecessors, (165), 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 22:15:10,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:15:10,735 INFO L93 Difference]: Finished difference Result 56592 states and 70484 transitions. [2022-01-31 22:15:10,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-01-31 22:15:10,735 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 6.6) internal successors, (165), 24 states have internal predecessors, (165), 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 197 [2022-01-31 22:15:10,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:15:10,786 INFO L225 Difference]: With dead ends: 56592 [2022-01-31 22:15:10,786 INFO L226 Difference]: Without dead ends: 28910 [2022-01-31 22:15:10,818 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 149 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 542 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=291, Invalid=2061, Unknown=0, NotChecked=0, Total=2352 [2022-01-31 22:15:10,819 INFO L933 BasicCegarLoop]: 176 mSDtfsCounter, 886 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 4373 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 886 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 4459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 4373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-01-31 22:15:10,819 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [886 Valid, 233 Invalid, 4459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 4373 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-01-31 22:15:10,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28910 states. [2022-01-31 22:15:15,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28910 to 28006. [2022-01-31 22:15:15,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28006 states, 28001 states have (on average 1.2464911967429735) internal successors, (34903), 28001 states have internal predecessors, (34903), 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 22:15:15,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28006 states to 28006 states and 34907 transitions. [2022-01-31 22:15:15,959 INFO L78 Accepts]: Start accepts. Automaton has 28006 states and 34907 transitions. Word has length 197 [2022-01-31 22:15:15,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:15:15,959 INFO L470 AbstractCegarLoop]: Abstraction has 28006 states and 34907 transitions. [2022-01-31 22:15:15,959 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 6.6) internal successors, (165), 24 states have internal predecessors, (165), 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 22:15:15,959 INFO L276 IsEmpty]: Start isEmpty. Operand 28006 states and 34907 transitions. [2022-01-31 22:15:15,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-01-31 22:15:15,976 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:15:15,977 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:15:15,977 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-01-31 22:15:15,977 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:15:15,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:15:15,977 INFO L85 PathProgramCache]: Analyzing trace with hash 1177498517, now seen corresponding path program 1 times [2022-01-31 22:15:15,977 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:15:15,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2050117493] [2022-01-31 22:15:15,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:15:16,041 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 22:15:16,041 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:15:16,041 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:15:16,086 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 22:15:16,112 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 3 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=1, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:15:16,225 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 22:15:16,225 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:15:16,280 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 22:15:16,281 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:15:16,281 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:15:16,329 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 22:15:16,329 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:15:16,329 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:15:16,355 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 3 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=1, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:15:16,766 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 8 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=6, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:15:16,766 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:15:16,766 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:15:16,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:15:16,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:15:16,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:15:16,840 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 22:15:17,630 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:15:17,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2050117493] [2022-01-31 22:15:17,630 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [2050117493] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:15:17,630 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:15:17,630 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-31 22:15:17,630 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132260199] [2022-01-31 22:15:17,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:15:17,631 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-31 22:15:17,631 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:15:17,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-31 22:15:17,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=669, Unknown=0, NotChecked=0, Total=756 [2022-01-31 22:15:17,631 INFO L87 Difference]: Start difference. First operand 28006 states and 34907 transitions. Second operand has 28 states, 27 states have (on average 6.111111111111111) internal successors, (165), 26 states have internal predecessors, (165), 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 22:15:26,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:15:26,370 INFO L93 Difference]: Finished difference Result 57620 states and 71776 transitions. [2022-01-31 22:15:26,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-01-31 22:15:26,370 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 6.111111111111111) internal successors, (165), 26 states have internal predecessors, (165), 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 197 [2022-01-31 22:15:26,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:15:26,420 INFO L225 Difference]: With dead ends: 57620 [2022-01-31 22:15:26,420 INFO L226 Difference]: Without dead ends: 29850 [2022-01-31 22:15:26,461 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 146 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 740 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=301, Invalid=2455, Unknown=0, NotChecked=0, Total=2756 [2022-01-31 22:15:26,461 INFO L933 BasicCegarLoop]: 234 mSDtfsCounter, 852 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 4714 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 852 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 4764 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 4714 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-01-31 22:15:26,462 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [852 Valid, 306 Invalid, 4764 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 4714 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-01-31 22:15:26,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29850 states. [2022-01-31 22:15:31,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29850 to 28010. [2022-01-31 22:15:31,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28010 states, 28005 states have (on average 1.246598821638993) internal successors, (34911), 28005 states have internal predecessors, (34911), 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 22:15:31,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28010 states to 28010 states and 34915 transitions. [2022-01-31 22:15:31,626 INFO L78 Accepts]: Start accepts. Automaton has 28010 states and 34915 transitions. Word has length 197 [2022-01-31 22:15:31,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:15:31,626 INFO L470 AbstractCegarLoop]: Abstraction has 28010 states and 34915 transitions. [2022-01-31 22:15:31,626 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 6.111111111111111) internal successors, (165), 26 states have internal predecessors, (165), 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 22:15:31,626 INFO L276 IsEmpty]: Start isEmpty. Operand 28010 states and 34915 transitions. [2022-01-31 22:15:31,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-01-31 22:15:31,641 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:15:31,641 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:15:31,642 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-01-31 22:15:31,642 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:15:31,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:15:31,642 INFO L85 PathProgramCache]: Analyzing trace with hash 1782829428, now seen corresponding path program 1 times [2022-01-31 22:15:31,642 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:15:31,642 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1929568258] [2022-01-31 22:15:31,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:15:31,718 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 22:16:07,831 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 22:16:07,882 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 22:16:07,906 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 3 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=1, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:16:07,907 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:16:07,907 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:16:07,907 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:16:07,966 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 22:16:07,967 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:16:07,967 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:16:08,023 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 22:16:08,024 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:16:08,024 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:16:08,048 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 3 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=1, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:16:08,472 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 8 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=6, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:16:08,472 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:16:08,473 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:16:08,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:16:08,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:16:08,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:16:08,542 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 22:16:09,525 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:16:09,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1929568258] [2022-01-31 22:16:09,525 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1929568258] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:16:09,525 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:16:09,525 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-31 22:16:09,525 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183220828] [2022-01-31 22:16:09,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:16:09,526 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-31 22:16:09,526 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:16:09,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-31 22:16:09,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=717, Unknown=0, NotChecked=0, Total=812 [2022-01-31 22:16:09,526 INFO L87 Difference]: Start difference. First operand 28010 states and 34915 transitions. Second operand has 29 states, 28 states have (on average 6.714285714285714) internal successors, (188), 27 states have internal predecessors, (188), 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 22:16:18,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:16:18,076 INFO L93 Difference]: Finished difference Result 56772 states and 70672 transitions. [2022-01-31 22:16:18,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-31 22:16:18,077 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 6.714285714285714) internal successors, (188), 27 states have internal predecessors, (188), 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 197 [2022-01-31 22:16:18,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:16:18,117 INFO L225 Difference]: With dead ends: 56772 [2022-01-31 22:16:18,118 INFO L226 Difference]: Without dead ends: 28998 [2022-01-31 22:16:18,154 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 146 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 676 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=327, Invalid=2643, Unknown=0, NotChecked=0, Total=2970 [2022-01-31 22:16:18,154 INFO L933 BasicCegarLoop]: 186 mSDtfsCounter, 893 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 6095 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 893 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 6183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 6095 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-01-31 22:16:18,154 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [893 Valid, 233 Invalid, 6183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 6095 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-01-31 22:16:18,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28998 states. [2022-01-31 22:16:22,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28998 to 28010. [2022-01-31 22:16:22,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28010 states, 28005 states have (on average 1.246598821638993) internal successors, (34911), 28005 states have internal predecessors, (34911), 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 22:16:22,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28010 states to 28010 states and 34915 transitions. [2022-01-31 22:16:22,815 INFO L78 Accepts]: Start accepts. Automaton has 28010 states and 34915 transitions. Word has length 197 [2022-01-31 22:16:22,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:16:22,815 INFO L470 AbstractCegarLoop]: Abstraction has 28010 states and 34915 transitions. [2022-01-31 22:16:22,815 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 6.714285714285714) internal successors, (188), 27 states have internal predecessors, (188), 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 22:16:22,815 INFO L276 IsEmpty]: Start isEmpty. Operand 28010 states and 34915 transitions. [2022-01-31 22:16:22,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2022-01-31 22:16:22,830 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:16:22,830 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:16:22,830 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-01-31 22:16:22,830 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:16:22,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:16:22,831 INFO L85 PathProgramCache]: Analyzing trace with hash -149783470, now seen corresponding path program 1 times [2022-01-31 22:16:22,831 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:16:22,831 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1188279199] [2022-01-31 22:16:22,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:16:22,899 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 22:16:22,946 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 22:16:22,947 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:16:22,947 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:16:22,972 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 3 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=1, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:16:22,972 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:16:22,973 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:16:22,973 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:16:23,029 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 22:23:19,767 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 10 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=8, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:23:19,816 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 22:23:19,872 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 22:23:19,898 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 3 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=1, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:23:20,311 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 8 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=6, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:23:20,312 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:23:20,312 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:23:20,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:23:20,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:23:20,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:23:20,364 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 22:23:21,761 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:23:21,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1188279199] [2022-01-31 22:23:21,762 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1188279199] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:23:21,762 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:23:21,762 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [] total 32 [2022-01-31 22:23:21,762 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903509287] [2022-01-31 22:23:21,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:23:21,762 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-01-31 22:23:21,762 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:23:21,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-01-31 22:23:21,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=887, Unknown=0, NotChecked=0, Total=992 [2022-01-31 22:23:21,763 INFO L87 Difference]: Start difference. First operand 28010 states and 34915 transitions. Second operand has 32 states, 31 states have (on average 6.096774193548387) internal successors, (189), 30 states have internal predecessors, (189), 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 22:23:30,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:23:30,954 INFO L93 Difference]: Finished difference Result 56772 states and 70668 transitions. [2022-01-31 22:23:30,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-31 22:23:30,954 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 6.096774193548387) internal successors, (189), 30 states have internal predecessors, (189), 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 198 [2022-01-31 22:23:30,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:23:31,002 INFO L225 Difference]: With dead ends: 56772 [2022-01-31 22:23:31,002 INFO L226 Difference]: Without dead ends: 28998 [2022-01-31 22:23:31,054 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 143 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 841 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=363, Invalid=3297, Unknown=0, NotChecked=0, Total=3660 [2022-01-31 22:23:31,054 INFO L933 BasicCegarLoop]: 168 mSDtfsCounter, 944 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 6110 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 944 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 6203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 6110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-01-31 22:23:31,054 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [944 Valid, 240 Invalid, 6203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 6110 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-01-31 22:23:31,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28998 states. [2022-01-31 22:23:35,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28998 to 28022. [2022-01-31 22:23:35,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28022 states, 28017 states have (on average 1.2467787414783882) internal successors, (34931), 28017 states have internal predecessors, (34931), 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 22:23:35,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28022 states to 28022 states and 34935 transitions. [2022-01-31 22:23:35,912 INFO L78 Accepts]: Start accepts. Automaton has 28022 states and 34935 transitions. Word has length 198 [2022-01-31 22:23:35,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:23:35,913 INFO L470 AbstractCegarLoop]: Abstraction has 28022 states and 34935 transitions. [2022-01-31 22:23:35,913 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 6.096774193548387) internal successors, (189), 30 states have internal predecessors, (189), 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 22:23:35,913 INFO L276 IsEmpty]: Start isEmpty. Operand 28022 states and 34935 transitions. [2022-01-31 22:23:35,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2022-01-31 22:23:35,930 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:23:35,930 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:23:35,930 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-01-31 22:23:35,930 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:23:35,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:23:35,930 INFO L85 PathProgramCache]: Analyzing trace with hash -1788512263, now seen corresponding path program 1 times [2022-01-31 22:23:35,931 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:23:35,931 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1981607783] [2022-01-31 22:23:35,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:23:36,007 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 22:23:36,008 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:23:36,008 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:23:36,008 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:23:36,008 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:23:36,032 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 3 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=1, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:23:39,318 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 22:23:39,319 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:23:39,372 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 22:23:39,373 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:23:39,373 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:23:39,373 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:23:39,373 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:23:39,374 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:23:39,374 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:23:39,400 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 3 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=1, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:23:39,903 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 8 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=6, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:23:39,903 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:23:39,903 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:23:39,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:23:39,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:23:39,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:23:39,989 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 22:23:41,976 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:23:41,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1981607783] [2022-01-31 22:23:41,976 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1981607783] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:23:41,976 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:23:41,976 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [39] imperfect sequences [] total 39 [2022-01-31 22:23:41,976 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944493725] [2022-01-31 22:23:41,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:23:41,977 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2022-01-31 22:23:41,977 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:23:41,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2022-01-31 22:23:41,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=1366, Unknown=0, NotChecked=0, Total=1482 [2022-01-31 22:23:41,977 INFO L87 Difference]: Start difference. First operand 28022 states and 34935 transitions. Second operand has 39 states, 38 states have (on average 5.105263157894737) internal successors, (194), 37 states have internal predecessors, (194), 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 22:23:52,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:23:52,752 INFO L93 Difference]: Finished difference Result 57888 states and 72068 transitions. [2022-01-31 22:23:52,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-01-31 22:23:52,753 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 38 states have (on average 5.105263157894737) internal successors, (194), 37 states have internal predecessors, (194), 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 198 [2022-01-31 22:23:52,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:23:52,798 INFO L225 Difference]: With dead ends: 57888 [2022-01-31 22:23:52,799 INFO L226 Difference]: Without dead ends: 30082 [2022-01-31 22:23:52,842 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 135 SyntacticMatches, 4 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1550 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=410, Invalid=5140, Unknown=0, NotChecked=0, Total=5550 [2022-01-31 22:23:52,843 INFO L933 BasicCegarLoop]: 209 mSDtfsCounter, 937 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 7910 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 937 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 7974 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 7910 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-01-31 22:23:52,843 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [937 Valid, 326 Invalid, 7974 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 7910 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-01-31 22:23:52,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30082 states.