/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_clnt_3.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-d966a43 [2022-01-31 21:56:33,478 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-31 21:56:33,479 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-31 21:56:33,524 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-31 21:56:33,537 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-31 21:56:33,538 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-31 21:56:33,539 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-31 21:56:33,541 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-31 21:56:33,542 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-31 21:56:33,542 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-31 21:56:33,544 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-31 21:56:33,548 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-31 21:56:33,548 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-31 21:56:33,549 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-31 21:56:33,550 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-31 21:56:33,551 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-31 21:56:33,556 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-31 21:56:33,561 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-31 21:56:33,562 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-31 21:56:33,562 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-31 21:56:33,563 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 21:56:33,573 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-31 21:56:33,573 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-31 21:56:33,575 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-31 21:56:33,575 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-31 21:56:33,575 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-31 21:56:33,575 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-31 21:56:33,575 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-31 21:56:33,575 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-31 21:56:33,575 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-31 21:56:33,576 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-31 21:56:33,576 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-31 21:56:33,576 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-31 21:56:33,576 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-31 21:56:33,577 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-31 21:56:33,577 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-31 21:56:33,577 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-31 21:56:33,577 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-31 21:56:33,577 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-31 21:56:33,577 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 21:56:33,577 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-31 21:56:33,577 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2022-01-31 21:56:33,577 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-31 21:56:33,577 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2022-01-31 21:56:33,578 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-31 21:56:33,861 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-31 21:56:33,875 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-31 21:56:33,876 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-31 21:56:33,877 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-31 21:56:33,879 INFO L275 PluginConnector]: CDTParser initialized [2022-01-31 21:56:33,879 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl-simplified/s3_clnt_3.cil-1.c [2022-01-31 21:56:33,943 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d27a7e550/6dac72740c0743239b814c99b68bfe57/FLAG72af37f9f [2022-01-31 21:56:34,326 INFO L306 CDTParser]: Found 1 translation units. [2022-01-31 21:56:34,326 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl-simplified/s3_clnt_3.cil-1.c [2022-01-31 21:56:34,340 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d27a7e550/6dac72740c0743239b814c99b68bfe57/FLAG72af37f9f [2022-01-31 21:56:34,349 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d27a7e550/6dac72740c0743239b814c99b68bfe57 [2022-01-31 21:56:34,351 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-31 21:56:34,352 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-01-31 21:56:34,353 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-31 21:56:34,353 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-31 21:56:34,355 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-31 21:56:34,355 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 09:56:34" (1/1) ... [2022-01-31 21:56:34,356 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6345996e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 09:56:34, skipping insertion in model container [2022-01-31 21:56:34,356 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 09:56:34" (1/1) ... [2022-01-31 21:56:34,360 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-31 21:56:34,381 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-31 21:56:34,548 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_clnt_3.cil-1.c[37413,37426] [2022-01-31 21:56:34,561 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 21:56:34,571 INFO L203 MainTranslator]: Completed pre-run [2022-01-31 21:56:34,672 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_clnt_3.cil-1.c[37413,37426] [2022-01-31 21:56:34,673 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 21:56:34,681 INFO L208 MainTranslator]: Completed translation [2022-01-31 21:56:34,682 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 09:56:34 WrapperNode [2022-01-31 21:56:34,682 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-31 21:56:34,682 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-31 21:56:34,682 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-31 21:56:34,683 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-31 21:56:34,716 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 09:56:34" (1/1) ... [2022-01-31 21:56:34,716 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 09:56:34" (1/1) ... [2022-01-31 21:56:34,725 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 09:56:34" (1/1) ... [2022-01-31 21:56:34,725 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 09:56:34" (1/1) ... [2022-01-31 21:56:34,731 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 09:56:34" (1/1) ... [2022-01-31 21:56:34,771 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 09:56:34" (1/1) ... [2022-01-31 21:56:34,773 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 09:56:34" (1/1) ... [2022-01-31 21:56:34,775 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-31 21:56:34,785 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-31 21:56:34,785 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-31 21:56:34,785 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-31 21:56:34,786 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 09:56:34" (1/1) ... [2022-01-31 21:56:34,800 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 21:56:34,808 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 21:56:34,816 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 21:56:34,831 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 21:56:34,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-01-31 21:56:34,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-31 21:56:34,851 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-01-31 21:56:34,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_connect [2022-01-31 21:56:34,851 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-01-31 21:56:34,851 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-01-31 21:56:34,851 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-01-31 21:56:34,852 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-01-31 21:56:34,852 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-31 21:56:34,852 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-01-31 21:56:34,853 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_connect [2022-01-31 21:56:34,853 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-01-31 21:56:34,853 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-01-31 21:56:34,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-31 21:56:34,854 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-31 21:56:34,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-31 21:56:34,855 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-31 21:56:34,855 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-31 21:56:34,931 INFO L234 CfgBuilder]: Building ICFG [2022-01-31 21:56:34,932 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-31 21:56:35,015 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-31 21:56:35,337 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2022-01-31 21:56:35,337 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2022-01-31 21:56:35,339 INFO L275 CfgBuilder]: Performing block encoding [2022-01-31 21:56:35,347 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-31 21:56:35,347 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-31 21:56:35,348 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 09:56:35 BoogieIcfgContainer [2022-01-31 21:56:35,349 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-31 21:56:35,351 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-31 21:56:35,351 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-31 21:56:35,354 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-31 21:56:35,354 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 09:56:34" (1/3) ... [2022-01-31 21:56:35,354 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c69f268 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 09:56:35, skipping insertion in model container [2022-01-31 21:56:35,355 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 09:56:34" (2/3) ... [2022-01-31 21:56:35,355 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c69f268 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 09:56:35, skipping insertion in model container [2022-01-31 21:56:35,355 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 09:56:35" (3/3) ... [2022-01-31 21:56:35,356 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_clnt_3.cil-1.c [2022-01-31 21:56:35,360 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-01-31 21:56:35,360 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-31 21:56:35,388 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-31 21:56:35,392 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 21:56:35,392 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-31 21:56:35,406 INFO L276 IsEmpty]: Start isEmpty. Operand has 133 states, 125 states have (on average 1.72) internal successors, (215), 126 states have internal predecessors, (215), 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 21:56:35,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-01-31 21:56:35,412 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 21:56:35,412 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] [2022-01-31 21:56:35,413 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 21:56:35,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 21:56:35,416 INFO L85 PathProgramCache]: Analyzing trace with hash 493692649, now seen corresponding path program 1 times [2022-01-31 21:56:35,421 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 21:56:35,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1449223864] [2022-01-31 21:56:35,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 21:56:35,429 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 21:56:35,458 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 21:56:35,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 21:56:35,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 21:56:35,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 21:56:35,587 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 21:56:35,588 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 21:56:35,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1449223864] [2022-01-31 21:56:35,589 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1449223864] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 21:56:35,589 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 21:56:35,589 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-31 21:56:35,590 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052890089] [2022-01-31 21:56:35,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 21:56:35,593 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-31 21:56:35,593 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 21:56:35,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-31 21:56:35,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-31 21:56:35,629 INFO L87 Difference]: Start difference. First operand has 133 states, 125 states have (on average 1.72) internal successors, (215), 126 states have internal predecessors, (215), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 6 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 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 21:56:36,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 21:56:36,017 INFO L93 Difference]: Finished difference Result 286 states and 483 transitions. [2022-01-31 21:56:36,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-31 21:56:36,019 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 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 30 [2022-01-31 21:56:36,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 21:56:36,025 INFO L225 Difference]: With dead ends: 286 [2022-01-31 21:56:36,025 INFO L226 Difference]: Without dead ends: 143 [2022-01-31 21:56:36,028 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 21:56:36,030 INFO L933 BasicCegarLoop]: 148 mSDtfsCounter, 684 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 684 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-31 21:56:36,030 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [684 Valid, 169 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 334 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-31 21:56:36,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2022-01-31 21:56:36,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 138. [2022-01-31 21:56:36,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 133 states have (on average 1.5714285714285714) internal successors, (209), 133 states have internal predecessors, (209), 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 21:56:36,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 213 transitions. [2022-01-31 21:56:36,062 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 213 transitions. Word has length 30 [2022-01-31 21:56:36,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 21:56:36,062 INFO L470 AbstractCegarLoop]: Abstraction has 138 states and 213 transitions. [2022-01-31 21:56:36,063 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 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 21:56:36,063 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 213 transitions. [2022-01-31 21:56:36,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-01-31 21:56:36,064 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 21:56:36,064 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] [2022-01-31 21:56:36,064 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-31 21:56:36,064 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 21:56:36,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 21:56:36,065 INFO L85 PathProgramCache]: Analyzing trace with hash -1880023188, now seen corresponding path program 1 times [2022-01-31 21:56:36,065 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 21:56:36,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1763560201] [2022-01-31 21:56:36,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 21:56:36,066 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 21:56:36,067 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 21:56:36,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 21:56:36,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 21:56:36,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 21:56:36,134 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 21:56:36,134 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 21:56:36,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1763560201] [2022-01-31 21:56:36,134 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1763560201] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 21:56:36,135 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 21:56:36,135 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-31 21:56:36,135 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516514369] [2022-01-31 21:56:36,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 21:56:36,135 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-31 21:56:36,136 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 21:56:36,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-31 21:56:36,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-31 21:56:36,136 INFO L87 Difference]: Start difference. First operand 138 states and 213 transitions. Second operand has 6 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 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 21:56:36,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 21:56:36,409 INFO L93 Difference]: Finished difference Result 292 states and 458 transitions. [2022-01-31 21:56:36,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-31 21:56:36,410 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 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 31 [2022-01-31 21:56:36,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 21:56:36,414 INFO L225 Difference]: With dead ends: 292 [2022-01-31 21:56:36,414 INFO L226 Difference]: Without dead ends: 167 [2022-01-31 21:56:36,419 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 21:56:36,420 INFO L933 BasicCegarLoop]: 106 mSDtfsCounter, 548 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 548 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 21:56:36,421 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [548 Valid, 123 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-31 21:56:36,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2022-01-31 21:56:36,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 162. [2022-01-31 21:56:36,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 157 states have (on average 1.605095541401274) internal successors, (252), 157 states have internal predecessors, (252), 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 21:56:36,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 256 transitions. [2022-01-31 21:56:36,443 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 256 transitions. Word has length 31 [2022-01-31 21:56:36,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 21:56:36,443 INFO L470 AbstractCegarLoop]: Abstraction has 162 states and 256 transitions. [2022-01-31 21:56:36,443 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 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 21:56:36,444 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 256 transitions. [2022-01-31 21:56:36,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-01-31 21:56:36,445 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 21:56:36,445 INFO L514 BasicCegarLoop]: trace histogram [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] [2022-01-31 21:56:36,445 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-31 21:56:36,445 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 21:56:36,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 21:56:36,446 INFO L85 PathProgramCache]: Analyzing trace with hash -1141705119, now seen corresponding path program 1 times [2022-01-31 21:56:36,446 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 21:56:36,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1710444606] [2022-01-31 21:56:36,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 21:56:36,645 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 21:56:36,646 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2022-01-31 21:56:36,646 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 21:56:36,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 21:56:36,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 21:56:36,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 21:56:36,732 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 21:56:37,764 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 21:56:37,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1710444606] [2022-01-31 21:56:37,764 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1710444606] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 21:56:37,764 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 21:56:37,765 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-31 21:56:37,765 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056788057] [2022-01-31 21:56:37,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 21:56:37,765 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-31 21:56:37,765 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 21:56:37,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-31 21:56:37,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=210, Invalid=546, Unknown=0, NotChecked=0, Total=756 [2022-01-31 21:56:37,766 INFO L87 Difference]: Start difference. First operand 162 states and 256 transitions. Second operand has 28 states, 27 states have (on average 1.7037037037037037) internal successors, (46), 26 states have internal predecessors, (46), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 21:56:38,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 21:56:38,170 INFO L93 Difference]: Finished difference Result 363 states and 581 transitions. [2022-01-31 21:56:38,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-31 21:56:38,171 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 1.7037037037037037) internal successors, (46), 26 states have internal predecessors, (46), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 50 [2022-01-31 21:56:38,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 21:56:38,172 INFO L225 Difference]: With dead ends: 363 [2022-01-31 21:56:38,172 INFO L226 Difference]: Without dead ends: 214 [2022-01-31 21:56:38,173 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 345 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=336, Invalid=1224, Unknown=0, NotChecked=0, Total=1560 [2022-01-31 21:56:38,174 INFO L933 BasicCegarLoop]: 152 mSDtfsCounter, 189 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 844 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 347 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 21:56:38,174 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [189 Valid, 201 Invalid, 844 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 477 Invalid, 0 Unknown, 347 Unchecked, 0.2s Time] [2022-01-31 21:56:38,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2022-01-31 21:56:38,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 204. [2022-01-31 21:56:38,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 199 states have (on average 1.6331658291457287) internal successors, (325), 199 states have internal predecessors, (325), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 21:56:38,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 329 transitions. [2022-01-31 21:56:38,191 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 329 transitions. Word has length 50 [2022-01-31 21:56:38,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 21:56:38,191 INFO L470 AbstractCegarLoop]: Abstraction has 204 states and 329 transitions. [2022-01-31 21:56:38,191 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 1.7037037037037037) internal successors, (46), 26 states have internal predecessors, (46), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 21:56:38,191 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 329 transitions. [2022-01-31 21:56:38,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-01-31 21:56:38,192 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 21:56:38,193 INFO L514 BasicCegarLoop]: trace histogram [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] [2022-01-31 21:56:38,193 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-31 21:56:38,193 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 21:56:38,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 21:56:38,193 INFO L85 PathProgramCache]: Analyzing trace with hash -1275718625, now seen corresponding path program 1 times [2022-01-31 21:56:38,193 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 21:56:38,193 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1148769311] [2022-01-31 21:56:38,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 21:56:38,252 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 5 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=3, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 21:56:38,252 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2022-01-31 21:56:38,252 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 21:56:38,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 21:56:38,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 21:56:38,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 21:56:38,289 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 21:56:38,623 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 21:56:38,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1148769311] [2022-01-31 21:56:38,623 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1148769311] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 21:56:38,623 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 21:56:38,623 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-31 21:56:38,623 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048593965] [2022-01-31 21:56:38,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 21:56:38,624 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-31 21:56:38,624 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 21:56:38,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-31 21:56:38,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=156, Invalid=306, Unknown=0, NotChecked=0, Total=462 [2022-01-31 21:56:38,624 INFO L87 Difference]: Start difference. First operand 204 states and 329 transitions. Second operand has 22 states, 22 states have (on average 2.090909090909091) internal successors, (46), 21 states have internal predecessors, (46), 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 21:56:39,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 21:56:39,663 INFO L93 Difference]: Finished difference Result 576 states and 912 transitions. [2022-01-31 21:56:39,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-31 21:56:39,663 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.090909090909091) internal successors, (46), 21 states have internal predecessors, (46), 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 50 [2022-01-31 21:56:39,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 21:56:39,667 INFO L225 Difference]: With dead ends: 576 [2022-01-31 21:56:39,667 INFO L226 Difference]: Without dead ends: 401 [2022-01-31 21:56:39,668 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 299 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=462, Invalid=1178, Unknown=0, NotChecked=0, Total=1640 [2022-01-31 21:56:39,676 INFO L933 BasicCegarLoop]: 163 mSDtfsCounter, 859 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 1558 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 859 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 1593 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1558 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-31 21:56:39,677 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [859 Valid, 195 Invalid, 1593 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1558 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-31 21:56:39,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2022-01-31 21:56:39,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 330. [2022-01-31 21:56:39,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 330 states, 325 states have (on average 1.563076923076923) internal successors, (508), 325 states have internal predecessors, (508), 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 21:56:39,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 512 transitions. [2022-01-31 21:56:39,733 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 512 transitions. Word has length 50 [2022-01-31 21:56:39,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 21:56:39,734 INFO L470 AbstractCegarLoop]: Abstraction has 330 states and 512 transitions. [2022-01-31 21:56:39,734 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.090909090909091) internal successors, (46), 21 states have internal predecessors, (46), 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 21:56:39,734 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 512 transitions. [2022-01-31 21:56:39,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-01-31 21:56:39,741 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 21:56:39,742 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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] [2022-01-31 21:56:39,742 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-31 21:56:39,744 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 21:56:39,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 21:56:39,745 INFO L85 PathProgramCache]: Analyzing trace with hash 2137927146, now seen corresponding path program 1 times [2022-01-31 21:56:39,745 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 21:56:39,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1541176112] [2022-01-31 21:56:39,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 21:56:39,950 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 21:56:40,014 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 21:56:40,015 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 21:56:40,078 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 21:56:40,079 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 21:56:40,079 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 21:56:40,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 21:56:40,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 21:56:40,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 21:56:40,176 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 21:56:40,458 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 21:56:40,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1541176112] [2022-01-31 21:56:40,458 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1541176112] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 21:56:40,458 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 21:56:40,458 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-31 21:56:40,458 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587349653] [2022-01-31 21:56:40,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 21:56:40,459 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-31 21:56:40,459 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 21:56:40,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-31 21:56:40,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=343, Unknown=0, NotChecked=0, Total=462 [2022-01-31 21:56:40,459 INFO L87 Difference]: Start difference. First operand 330 states and 512 transitions. Second operand has 22 states, 21 states have (on average 2.857142857142857) internal successors, (60), 20 states have internal predecessors, (60), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 21:56:42,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 21:56:42,017 INFO L93 Difference]: Finished difference Result 944 states and 1432 transitions. [2022-01-31 21:56:42,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-31 21:56:42,018 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 2.857142857142857) internal successors, (60), 20 states have internal predecessors, (60), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 64 [2022-01-31 21:56:42,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 21:56:42,020 INFO L225 Difference]: With dead ends: 944 [2022-01-31 21:56:42,021 INFO L226 Difference]: Without dead ends: 795 [2022-01-31 21:56:42,021 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 493 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=561, Invalid=1791, Unknown=0, NotChecked=0, Total=2352 [2022-01-31 21:56:42,022 INFO L933 BasicCegarLoop]: 353 mSDtfsCounter, 1111 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 3495 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1111 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 3583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 3495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-01-31 21:56:42,022 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1111 Valid, 400 Invalid, 3583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 3495 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-01-31 21:56:42,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 795 states. [2022-01-31 21:56:42,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 795 to 505. [2022-01-31 21:56:42,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 505 states, 500 states have (on average 1.548) internal successors, (774), 500 states have internal predecessors, (774), 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 21:56:42,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 778 transitions. [2022-01-31 21:56:42,064 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 778 transitions. Word has length 64 [2022-01-31 21:56:42,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 21:56:42,065 INFO L470 AbstractCegarLoop]: Abstraction has 505 states and 778 transitions. [2022-01-31 21:56:42,065 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 2.857142857142857) internal successors, (60), 20 states have internal predecessors, (60), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 21:56:42,065 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 778 transitions. [2022-01-31 21:56:42,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-01-31 21:56:42,066 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 21:56:42,066 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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] [2022-01-31 21:56:42,067 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-31 21:56:42,067 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 21:56:42,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 21:56:42,067 INFO L85 PathProgramCache]: Analyzing trace with hash -2042907162, now seen corresponding path program 1 times [2022-01-31 21:56:42,068 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 21:56:42,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1603343063] [2022-01-31 21:56:42,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 21:56:42,194 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 21:56:42,250 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 5 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=3, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 21:56:42,250 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 21:56:42,301 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 5 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=3, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 21:56:42,301 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 21:56:42,302 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 21:56:42,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 21:56:42,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 21:56:42,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 21:56:42,379 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 21:56:42,824 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 21:56:42,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1603343063] [2022-01-31 21:56:42,824 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1603343063] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 21:56:42,824 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 21:56:42,824 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-01-31 21:56:42,825 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518364095] [2022-01-31 21:56:42,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 21:56:42,825 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-01-31 21:56:42,825 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 21:56:42,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-01-31 21:56:42,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=282, Unknown=0, NotChecked=0, Total=380 [2022-01-31 21:56:42,826 INFO L87 Difference]: Start difference. First operand 505 states and 778 transitions. Second operand has 20 states, 20 states have (on average 3.0) internal successors, (60), 19 states have internal predecessors, (60), 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 21:56:44,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 21:56:44,199 INFO L93 Difference]: Finished difference Result 1267 states and 1949 transitions. [2022-01-31 21:56:44,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-31 21:56:44,199 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.0) internal successors, (60), 19 states have internal predecessors, (60), 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 64 [2022-01-31 21:56:44,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 21:56:44,202 INFO L225 Difference]: With dead ends: 1267 [2022-01-31 21:56:44,202 INFO L226 Difference]: Without dead ends: 945 [2022-01-31 21:56:44,203 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 292 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=285, Invalid=975, Unknown=0, NotChecked=0, Total=1260 [2022-01-31 21:56:44,204 INFO L933 BasicCegarLoop]: 163 mSDtfsCounter, 1069 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 2274 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1069 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 2307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 2274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-31 21:56:44,204 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1069 Valid, 205 Invalid, 2307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 2274 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-31 21:56:44,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 945 states. [2022-01-31 21:56:44,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 945 to 805. [2022-01-31 21:56:44,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 805 states, 800 states have (on average 1.565) internal successors, (1252), 800 states have internal predecessors, (1252), 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 21:56:44,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 805 states to 805 states and 1256 transitions. [2022-01-31 21:56:44,255 INFO L78 Accepts]: Start accepts. Automaton has 805 states and 1256 transitions. Word has length 64 [2022-01-31 21:56:44,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 21:56:44,255 INFO L470 AbstractCegarLoop]: Abstraction has 805 states and 1256 transitions. [2022-01-31 21:56:44,255 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 3.0) internal successors, (60), 19 states have internal predecessors, (60), 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 21:56:44,255 INFO L276 IsEmpty]: Start isEmpty. Operand 805 states and 1256 transitions. [2022-01-31 21:56:44,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-01-31 21:56:44,257 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 21:56:44,257 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2022-01-31 21:56:44,257 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-31 21:56:44,257 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 21:56:44,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 21:56:44,257 INFO L85 PathProgramCache]: Analyzing trace with hash 1891436727, now seen corresponding path program 1 times [2022-01-31 21:56:44,258 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 21:56:44,258 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1017899002] [2022-01-31 21:56:44,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 21:56:44,318 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 21:56:44,447 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 21:56:44,498 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 5 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=3, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 21:56:44,499 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 21:56:44,562 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 21:56:44,610 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 5 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=3, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 21:56:44,611 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 21:56:44,611 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 21:56:44,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 21:56:44,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 21:56:44,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 21:56:44,733 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 21:56:45,236 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 21:56:45,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1017899002] [2022-01-31 21:56:45,237 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1017899002] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 21:56:45,237 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 21:56:45,237 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2022-01-31 21:56:45,237 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849499917] [2022-01-31 21:56:45,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 21:56:45,237 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-01-31 21:56:45,237 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 21:56:45,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-01-31 21:56:45,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=188, Invalid=624, Unknown=0, NotChecked=0, Total=812 [2022-01-31 21:56:45,238 INFO L87 Difference]: Start difference. First operand 805 states and 1256 transitions. Second operand has 27 states, 26 states have (on average 2.9615384615384617) internal successors, (77), 25 states have internal predecessors, (77), 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 21:56:48,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 21:56:48,393 INFO L93 Difference]: Finished difference Result 2050 states and 3131 transitions. [2022-01-31 21:56:48,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-01-31 21:56:48,393 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 2.9615384615384617) internal successors, (77), 25 states have internal predecessors, (77), 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 21:56:48,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 21:56:48,397 INFO L225 Difference]: With dead ends: 2050 [2022-01-31 21:56:48,397 INFO L226 Difference]: Without dead ends: 1258 [2022-01-31 21:56:48,399 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 993 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=743, Invalid=2917, Unknown=0, NotChecked=0, Total=3660 [2022-01-31 21:56:48,399 INFO L933 BasicCegarLoop]: 372 mSDtfsCounter, 1742 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 7075 mSolverCounterSat, 220 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1742 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 7295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 220 IncrementalHoareTripleChecker+Valid, 7075 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-01-31 21:56:48,399 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1742 Valid, 419 Invalid, 7295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [220 Valid, 7075 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-01-31 21:56:48,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1258 states. [2022-01-31 21:56:48,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1258 to 808. [2022-01-31 21:56:48,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 808 states, 803 states have (on average 1.5379825653798256) internal successors, (1235), 803 states have internal predecessors, (1235), 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 21:56:48,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 808 states to 808 states and 1239 transitions. [2022-01-31 21:56:48,467 INFO L78 Accepts]: Start accepts. Automaton has 808 states and 1239 transitions. Word has length 81 [2022-01-31 21:56:48,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 21:56:48,468 INFO L470 AbstractCegarLoop]: Abstraction has 808 states and 1239 transitions. [2022-01-31 21:56:48,468 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 2.9615384615384617) internal successors, (77), 25 states have internal predecessors, (77), 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 21:56:48,468 INFO L276 IsEmpty]: Start isEmpty. Operand 808 states and 1239 transitions. [2022-01-31 21:56:48,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-01-31 21:56:48,469 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 21:56:48,469 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 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] [2022-01-31 21:56:48,469 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-31 21:56:48,469 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 21:56:48,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 21:56:48,470 INFO L85 PathProgramCache]: Analyzing trace with hash 1208668904, now seen corresponding path program 1 times [2022-01-31 21:56:48,470 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 21:56:48,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1929058336] [2022-01-31 21:56:48,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 21:56:48,581 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 21:56:48,631 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 5 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=3, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 21:56:48,697 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 21:56:48,697 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 21:56:48,773 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 21:56:48,819 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 5 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=3, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 21:56:48,820 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 21:56:48,820 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 21:56:48,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 21:56:48,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 21:56:48,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 21:56:48,893 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 21:56:49,451 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 21:56:49,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1929058336] [2022-01-31 21:56:49,451 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1929058336] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 21:56:49,452 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 21:56:49,452 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-31 21:56:49,452 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79956521] [2022-01-31 21:56:49,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 21:56:49,452 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-31 21:56:49,452 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 21:56:49,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-31 21:56:49,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=517, Unknown=0, NotChecked=0, Total=650 [2022-01-31 21:56:49,453 INFO L87 Difference]: Start difference. First operand 808 states and 1239 transitions. Second operand has 26 states, 26 states have (on average 3.0) internal successors, (78), 25 states have internal predecessors, (78), 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 21:56:51,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 21:56:51,222 INFO L93 Difference]: Finished difference Result 1969 states and 3020 transitions. [2022-01-31 21:56:51,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-01-31 21:56:51,222 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.0) internal successors, (78), 25 states have internal predecessors, (78), 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 82 [2022-01-31 21:56:51,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 21:56:51,226 INFO L225 Difference]: With dead ends: 1969 [2022-01-31 21:56:51,226 INFO L226 Difference]: Without dead ends: 1376 [2022-01-31 21:56:51,227 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 656 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=388, Invalid=1868, Unknown=0, NotChecked=0, Total=2256 [2022-01-31 21:56:51,228 INFO L933 BasicCegarLoop]: 160 mSDtfsCounter, 1564 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 2945 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1564 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 3049 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 2945 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-01-31 21:56:51,228 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1564 Valid, 192 Invalid, 3049 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 2945 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-01-31 21:56:51,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1376 states. [2022-01-31 21:56:51,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1376 to 1220. [2022-01-31 21:56:51,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1220 states, 1215 states have (on average 1.539917695473251) internal successors, (1871), 1215 states have internal predecessors, (1871), 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 21:56:51,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1220 states to 1220 states and 1875 transitions. [2022-01-31 21:56:51,371 INFO L78 Accepts]: Start accepts. Automaton has 1220 states and 1875 transitions. Word has length 82 [2022-01-31 21:56:51,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 21:56:51,371 INFO L470 AbstractCegarLoop]: Abstraction has 1220 states and 1875 transitions. [2022-01-31 21:56:51,371 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 3.0) internal successors, (78), 25 states have internal predecessors, (78), 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 21:56:51,371 INFO L276 IsEmpty]: Start isEmpty. Operand 1220 states and 1875 transitions. [2022-01-31 21:56:51,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-01-31 21:56:51,373 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 21:56:51,373 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 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] [2022-01-31 21:56:51,373 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-31 21:56:51,373 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 21:56:51,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 21:56:51,374 INFO L85 PathProgramCache]: Analyzing trace with hash -835086616, now seen corresponding path program 1 times [2022-01-31 21:56:51,374 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 21:56:51,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2120113019] [2022-01-31 21:56:51,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 21:56:51,488 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 21:56:51,546 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 21:56:51,593 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 5 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=3, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 21:56:51,594 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 21:56:51,653 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 21:56:51,700 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 5 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=3, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 21:56:51,700 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 21:56:51,700 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 21:56:51,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 21:56:51,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 21:56:51,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 21:56:51,770 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 21:56:51,873 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 21:56:51,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2120113019] [2022-01-31 21:56:51,873 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [2120113019] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 21:56:51,874 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 21:56:51,874 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-01-31 21:56:51,874 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620576662] [2022-01-31 21:56:51,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 21:56:51,874 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-01-31 21:56:51,874 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 21:56:51,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-01-31 21:56:51,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2022-01-31 21:56:51,875 INFO L87 Difference]: Start difference. First operand 1220 states and 1875 transitions. Second operand has 13 states, 12 states have (on average 5.416666666666667) internal successors, (65), 11 states have internal predecessors, (65), 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 21:56:52,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 21:56:52,669 INFO L93 Difference]: Finished difference Result 2978 states and 4596 transitions. [2022-01-31 21:56:52,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-31 21:56:52,669 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 5.416666666666667) internal successors, (65), 11 states have internal predecessors, (65), 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 82 [2022-01-31 21:56:52,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 21:56:52,675 INFO L225 Difference]: With dead ends: 2978 [2022-01-31 21:56:52,675 INFO L226 Difference]: Without dead ends: 1958 [2022-01-31 21:56:52,677 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=180, Invalid=372, Unknown=0, NotChecked=0, Total=552 [2022-01-31 21:56:52,679 INFO L933 BasicCegarLoop]: 159 mSDtfsCounter, 1394 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 924 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1394 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 956 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 924 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-31 21:56:52,679 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1394 Valid, 181 Invalid, 956 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 924 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-31 21:56:52,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1958 states. [2022-01-31 21:56:52,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1958 to 1728. [2022-01-31 21:56:52,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1728 states, 1723 states have (on average 1.5531050493325596) internal successors, (2676), 1723 states have internal predecessors, (2676), 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 21:56:52,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1728 states to 1728 states and 2680 transitions. [2022-01-31 21:56:52,836 INFO L78 Accepts]: Start accepts. Automaton has 1728 states and 2680 transitions. Word has length 82 [2022-01-31 21:56:52,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 21:56:52,836 INFO L470 AbstractCegarLoop]: Abstraction has 1728 states and 2680 transitions. [2022-01-31 21:56:52,836 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 5.416666666666667) internal successors, (65), 11 states have internal predecessors, (65), 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 21:56:52,837 INFO L276 IsEmpty]: Start isEmpty. Operand 1728 states and 2680 transitions. [2022-01-31 21:56:52,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-01-31 21:56:52,839 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 21:56:52,839 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 21:56:52,839 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-31 21:56:52,839 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 21:56:52,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 21:56:52,840 INFO L85 PathProgramCache]: Analyzing trace with hash 1064426740, now seen corresponding path program 1 times [2022-01-31 21:56:52,840 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 21:56:52,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1310109864] [2022-01-31 21:56:52,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 21:56:52,902 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 21:56:52,949 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 5 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=3, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 21:56:53,011 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 21:56:53,118 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 21:56:53,118 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 21:56:53,201 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 21:56:53,272 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 21:56:53,326 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 5 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=3, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 21:56:53,326 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 21:56:53,326 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 21:56:53,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 21:56:53,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 21:56:53,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 21:56:53,416 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 21:56:53,858 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 21:56:53,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1310109864] [2022-01-31 21:56:53,858 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1310109864] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 21:56:53,858 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 21:56:53,858 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-31 21:56:53,859 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49572082] [2022-01-31 21:56:53,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 21:56:53,859 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-31 21:56:53,859 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 21:56:53,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-31 21:56:53,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=519, Unknown=0, NotChecked=0, Total=650 [2022-01-31 21:56:53,860 INFO L87 Difference]: Start difference. First operand 1728 states and 2680 transitions. Second operand has 26 states, 26 states have (on average 3.6153846153846154) internal successors, (94), 25 states have internal predecessors, (94), 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 21:56:55,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 21:56:55,787 INFO L93 Difference]: Finished difference Result 5781 states and 8947 transitions. [2022-01-31 21:56:55,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-01-31 21:56:55,787 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.6153846153846154) internal successors, (94), 25 states have internal predecessors, (94), 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 100 [2022-01-31 21:56:55,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 21:56:55,798 INFO L225 Difference]: With dead ends: 5781 [2022-01-31 21:56:55,798 INFO L226 Difference]: Without dead ends: 3693 [2022-01-31 21:56:55,801 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 654 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=387, Invalid=1965, Unknown=0, NotChecked=0, Total=2352 [2022-01-31 21:56:55,802 INFO L933 BasicCegarLoop]: 161 mSDtfsCounter, 1141 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 3887 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1141 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 3966 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 3887 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-01-31 21:56:55,802 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1141 Valid, 233 Invalid, 3966 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 3887 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-01-31 21:56:55,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3693 states. [2022-01-31 21:56:56,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3693 to 2740. [2022-01-31 21:56:56,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2740 states, 2735 states have (on average 1.5755027422303474) internal successors, (4309), 2735 states have internal predecessors, (4309), 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 21:56:56,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2740 states to 2740 states and 4313 transitions. [2022-01-31 21:56:56,077 INFO L78 Accepts]: Start accepts. Automaton has 2740 states and 4313 transitions. Word has length 100 [2022-01-31 21:56:56,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 21:56:56,077 INFO L470 AbstractCegarLoop]: Abstraction has 2740 states and 4313 transitions. [2022-01-31 21:56:56,077 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 3.6153846153846154) internal successors, (94), 25 states have internal predecessors, (94), 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 21:56:56,077 INFO L276 IsEmpty]: Start isEmpty. Operand 2740 states and 4313 transitions. [2022-01-31 21:56:56,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-01-31 21:56:56,082 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 21:56:56,082 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 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] [2022-01-31 21:56:56,082 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-31 21:56:56,082 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 21:56:56,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 21:56:56,083 INFO L85 PathProgramCache]: Analyzing trace with hash -1545090470, now seen corresponding path program 1 times [2022-01-31 21:56:56,083 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 21:56:56,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [429062808] [2022-01-31 21:56:56,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 21:56:56,760 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 3 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=6}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 21:56:56,760 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2022-01-31 21:56:56,760 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 21:56:56,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 21:56:56,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 21:56:56,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 21:56:56,796 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 21:56:56,797 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 21:56:56,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [429062808] [2022-01-31 21:56:56,797 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [429062808] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 21:56:56,797 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 21:56:56,797 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-31 21:56:56,797 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178493287] [2022-01-31 21:56:56,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 21:56:56,797 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-31 21:56:56,797 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 21:56:56,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-31 21:56:56,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-31 21:56:56,798 INFO L87 Difference]: Start difference. First operand 2740 states and 4313 transitions. Second operand has 6 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 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 21:56:57,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 21:56:57,264 INFO L93 Difference]: Finished difference Result 5160 states and 8129 transitions. [2022-01-31 21:56:57,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-31 21:56:57,265 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 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 139 [2022-01-31 21:56:57,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 21:56:57,272 INFO L225 Difference]: With dead ends: 5160 [2022-01-31 21:56:57,272 INFO L226 Difference]: Without dead ends: 2770 [2022-01-31 21:56:57,276 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 122 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 21:56:57,276 INFO L933 BasicCegarLoop]: 106 mSDtfsCounter, 522 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 522 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-31 21:56:57,276 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [522 Valid, 123 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-31 21:56:57,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2770 states. [2022-01-31 21:56:57,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2770 to 2740. [2022-01-31 21:56:57,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2740 states, 2735 states have (on average 1.5572212065813529) internal successors, (4259), 2735 states have internal predecessors, (4259), 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 21:56:57,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2740 states to 2740 states and 4263 transitions. [2022-01-31 21:56:57,550 INFO L78 Accepts]: Start accepts. Automaton has 2740 states and 4263 transitions. Word has length 139 [2022-01-31 21:56:57,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 21:56:57,550 INFO L470 AbstractCegarLoop]: Abstraction has 2740 states and 4263 transitions. [2022-01-31 21:56:57,551 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 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 21:56:57,551 INFO L276 IsEmpty]: Start isEmpty. Operand 2740 states and 4263 transitions. [2022-01-31 21:56:57,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-01-31 21:56:57,555 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 21:56:57,555 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 6, 6, 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] [2022-01-31 21:56:57,555 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-31 21:56:57,555 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 21:56:57,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 21:56:57,555 INFO L85 PathProgramCache]: Analyzing trace with hash -643046505, now seen corresponding path program 1 times [2022-01-31 21:56:57,556 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 21:56:57,556 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [439127711] [2022-01-31 21:56:57,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 21:56:58,543 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 3 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=6}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 21:56:58,543 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2022-01-31 21:56:58,543 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 21:56:58,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 21:56:58,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 21:56:58,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 21:56:58,575 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 21:56:58,946 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 21:56:58,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [439127711] [2022-01-31 21:56:58,946 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [439127711] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 21:56:58,946 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 21:56:58,946 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-31 21:56:58,946 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813231378] [2022-01-31 21:56:58,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 21:56:58,947 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-31 21:56:58,947 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 21:56:58,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-31 21:56:58,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=395, Unknown=0, NotChecked=0, Total=462 [2022-01-31 21:56:58,947 INFO L87 Difference]: Start difference. First operand 2740 states and 4263 transitions. Second operand has 22 states, 22 states have (on average 5.818181818181818) internal successors, (128), 21 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 21:57:00,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 21:57:00,837 INFO L93 Difference]: Finished difference Result 6899 states and 10813 transitions. [2022-01-31 21:57:00,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-31 21:57:00,838 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.818181818181818) internal successors, (128), 21 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 150 [2022-01-31 21:57:00,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 21:57:00,845 INFO L225 Difference]: With dead ends: 6899 [2022-01-31 21:57:00,845 INFO L226 Difference]: Without dead ends: 3036 [2022-01-31 21:57:00,861 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 391 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=195, Invalid=1445, Unknown=0, NotChecked=0, Total=1640 [2022-01-31 21:57:00,863 INFO L933 BasicCegarLoop]: 352 mSDtfsCounter, 545 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 4424 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 545 SdHoareTripleChecker+Valid, 404 SdHoareTripleChecker+Invalid, 4505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 4424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-01-31 21:57:00,863 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [545 Valid, 404 Invalid, 4505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 4424 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-01-31 21:57:00,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3036 states. [2022-01-31 21:57:01,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3036 to 2986. [2022-01-31 21:57:01,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2986 states, 2981 states have (on average 1.5474672928547468) internal successors, (4613), 2981 states have internal predecessors, (4613), 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 21:57:01,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2986 states to 2986 states and 4617 transitions. [2022-01-31 21:57:01,293 INFO L78 Accepts]: Start accepts. Automaton has 2986 states and 4617 transitions. Word has length 150 [2022-01-31 21:57:01,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 21:57:01,294 INFO L470 AbstractCegarLoop]: Abstraction has 2986 states and 4617 transitions. [2022-01-31 21:57:01,294 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.818181818181818) internal successors, (128), 21 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 21:57:01,294 INFO L276 IsEmpty]: Start isEmpty. Operand 2986 states and 4617 transitions. [2022-01-31 21:57:01,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-01-31 21:57:01,298 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 21:57:01,298 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 6, 6, 4, 4, 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] [2022-01-31 21:57:01,298 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-31 21:57:01,298 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 21:57:01,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 21:57:01,299 INFO L85 PathProgramCache]: Analyzing trace with hash 1421780887, now seen corresponding path program 1 times [2022-01-31 21:57:01,299 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 21:57:01,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1554697536] [2022-01-31 21:57:01,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 21:57:02,157 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 9 HavocedVariables, 0 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 21:57:02,158 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2022-01-31 21:57:02,158 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 21:57:02,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 21:57:02,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 21:57:02,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 21:57:02,188 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 21:57:02,306 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 21:57:02,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1554697536] [2022-01-31 21:57:02,306 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1554697536] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 21:57:02,306 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 21:57:02,306 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-01-31 21:57:02,306 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943440245] [2022-01-31 21:57:02,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 21:57:02,306 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-31 21:57:02,306 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 21:57:02,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-31 21:57:02,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2022-01-31 21:57:02,307 INFO L87 Difference]: Start difference. First operand 2986 states and 4617 transitions. Second operand has 12 states, 12 states have (on average 8.25) internal successors, (99), 11 states have internal predecessors, (99), 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 21:57:03,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 21:57:03,326 INFO L93 Difference]: Finished difference Result 5709 states and 8850 transitions. [2022-01-31 21:57:03,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-31 21:57:03,326 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.25) internal successors, (99), 11 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 150 [2022-01-31 21:57:03,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 21:57:03,334 INFO L225 Difference]: With dead ends: 5709 [2022-01-31 21:57:03,334 INFO L226 Difference]: Without dead ends: 3073 [2022-01-31 21:57:03,337 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=123, Invalid=297, Unknown=0, NotChecked=0, Total=420 [2022-01-31 21:57:03,337 INFO L933 BasicCegarLoop]: 302 mSDtfsCounter, 472 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 1601 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 472 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 1684 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 1601 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-31 21:57:03,337 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [472 Valid, 329 Invalid, 1684 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 1601 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-31 21:57:03,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3073 states. [2022-01-31 21:57:03,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3073 to 2991. [2022-01-31 21:57:03,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2991 states, 2986 states have (on average 1.5482250502344272) internal successors, (4623), 2986 states have internal predecessors, (4623), 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 21:57:03,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2991 states to 2991 states and 4627 transitions. [2022-01-31 21:57:03,640 INFO L78 Accepts]: Start accepts. Automaton has 2991 states and 4627 transitions. Word has length 150 [2022-01-31 21:57:03,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 21:57:03,640 INFO L470 AbstractCegarLoop]: Abstraction has 2991 states and 4627 transitions. [2022-01-31 21:57:03,640 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.25) internal successors, (99), 11 states have internal predecessors, (99), 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 21:57:03,641 INFO L276 IsEmpty]: Start isEmpty. Operand 2991 states and 4627 transitions. [2022-01-31 21:57:03,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2022-01-31 21:57:03,644 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 21:57:03,645 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 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] [2022-01-31 21:57:03,646 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-31 21:57:03,646 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 21:57:03,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 21:57:03,646 INFO L85 PathProgramCache]: Analyzing trace with hash 1765108079, now seen corresponding path program 1 times [2022-01-31 21:57:03,646 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 21:57:03,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1479145819] [2022-01-31 21:57:03,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 21:57:04,470 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 9 HavocedVariables, 0 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 21:57:04,471 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2022-01-31 21:57:04,471 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 21:57:04,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 21:57:04,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 21:57:04,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 21:57:04,505 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 21:57:04,766 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 21:57:04,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1479145819] [2022-01-31 21:57:04,766 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1479145819] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 21:57:04,767 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 21:57:04,767 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-01-31 21:57:04,767 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196152158] [2022-01-31 21:57:04,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 21:57:04,767 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-31 21:57:04,767 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 21:57:04,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-31 21:57:04,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=212, Unknown=0, NotChecked=0, Total=272 [2022-01-31 21:57:04,768 INFO L87 Difference]: Start difference. First operand 2991 states and 4627 transitions. Second operand has 17 states, 17 states have (on average 5.9411764705882355) internal successors, (101), 16 states have internal predecessors, (101), 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 21:57:06,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 21:57:06,342 INFO L93 Difference]: Finished difference Result 5679 states and 8783 transitions. [2022-01-31 21:57:06,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-31 21:57:06,343 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 5.9411764705882355) internal successors, (101), 16 states have internal predecessors, (101), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 151 [2022-01-31 21:57:06,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 21:57:06,350 INFO L225 Difference]: With dead ends: 5679 [2022-01-31 21:57:06,350 INFO L226 Difference]: Without dead ends: 3038 [2022-01-31 21:57:06,354 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 195 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=174, Invalid=756, Unknown=0, NotChecked=0, Total=930 [2022-01-31 21:57:06,355 INFO L933 BasicCegarLoop]: 360 mSDtfsCounter, 372 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 3377 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 372 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 3418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 3377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-01-31 21:57:06,355 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [372 Valid, 402 Invalid, 3418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 3377 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-01-31 21:57:06,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3038 states. [2022-01-31 21:57:06,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3038 to 3015. [2022-01-31 21:57:06,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3015 states, 3010 states have (on average 1.545514950166113) internal successors, (4652), 3010 states have internal predecessors, (4652), 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 21:57:06,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3015 states to 3015 states and 4656 transitions. [2022-01-31 21:57:06,707 INFO L78 Accepts]: Start accepts. Automaton has 3015 states and 4656 transitions. Word has length 151 [2022-01-31 21:57:06,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 21:57:06,707 INFO L470 AbstractCegarLoop]: Abstraction has 3015 states and 4656 transitions. [2022-01-31 21:57:06,708 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.9411764705882355) internal successors, (101), 16 states have internal predecessors, (101), 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 21:57:06,708 INFO L276 IsEmpty]: Start isEmpty. Operand 3015 states and 4656 transitions. [2022-01-31 21:57:06,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-31 21:57:06,711 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 21:57:06,711 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 4, 4, 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] [2022-01-31 21:57:06,712 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-31 21:57:06,712 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 21:57:06,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 21:57:06,712 INFO L85 PathProgramCache]: Analyzing trace with hash -323658331, now seen corresponding path program 1 times [2022-01-31 21:57:06,712 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 21:57:06,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1147052445] [2022-01-31 21:57:06,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 21:57:07,670 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 10 HavocedVariables, 0 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 21:57:07,670 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2022-01-31 21:57:07,670 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 21:57:07,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 21:57:07,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 21:57:07,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 21:57:07,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 21:57:07,887 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 21:57:07,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1147052445] [2022-01-31 21:57:07,887 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1147052445] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 21:57:07,887 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 21:57:07,887 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-31 21:57:07,887 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133590507] [2022-01-31 21:57:07,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 21:57:07,888 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-01-31 21:57:07,888 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 21:57:07,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-01-31 21:57:07,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2022-01-31 21:57:07,888 INFO L87 Difference]: Start difference. First operand 3015 states and 4656 transitions. Second operand has 15 states, 15 states have (on average 6.866666666666666) internal successors, (103), 14 states have internal predecessors, (103), 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 21:57:09,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 21:57:09,028 INFO L93 Difference]: Finished difference Result 5803 states and 8962 transitions. [2022-01-31 21:57:09,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-31 21:57:09,028 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 6.866666666666666) internal successors, (103), 14 states have internal predecessors, (103), 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 154 [2022-01-31 21:57:09,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 21:57:09,039 INFO L225 Difference]: With dead ends: 5803 [2022-01-31 21:57:09,039 INFO L226 Difference]: Without dead ends: 3138 [2022-01-31 21:57:09,042 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=198, Invalid=504, Unknown=0, NotChecked=0, Total=702 [2022-01-31 21:57:09,043 INFO L933 BasicCegarLoop]: 311 mSDtfsCounter, 576 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 1646 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 576 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 1741 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 1646 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-31 21:57:09,043 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [576 Valid, 328 Invalid, 1741 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 1646 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-31 21:57:09,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3138 states. [2022-01-31 21:57:09,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3138 to 3054. [2022-01-31 21:57:09,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3054 states, 3049 states have (on average 1.5391931780911774) internal successors, (4693), 3049 states have internal predecessors, (4693), 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 21:57:09,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3054 states to 3054 states and 4697 transitions. [2022-01-31 21:57:09,349 INFO L78 Accepts]: Start accepts. Automaton has 3054 states and 4697 transitions. Word has length 154 [2022-01-31 21:57:09,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 21:57:09,349 INFO L470 AbstractCegarLoop]: Abstraction has 3054 states and 4697 transitions. [2022-01-31 21:57:09,349 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 6.866666666666666) internal successors, (103), 14 states have internal predecessors, (103), 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 21:57:09,349 INFO L276 IsEmpty]: Start isEmpty. Operand 3054 states and 4697 transitions. [2022-01-31 21:57:09,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-31 21:57:09,366 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 21:57:09,367 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 5, 4, 4, 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] [2022-01-31 21:57:09,367 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-31 21:57:09,367 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 21:57:09,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 21:57:09,367 INFO L85 PathProgramCache]: Analyzing trace with hash 1009838402, now seen corresponding path program 1 times [2022-01-31 21:57:09,367 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 21:57:09,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [804123301] [2022-01-31 21:57:09,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 21:57:10,437 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 21:57:10,504 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 9 HavocedVariables, 0 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 21:57:10,504 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2022-01-31 21:57:10,504 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 21:57:10,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 21:57:10,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 21:57:10,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 21:57:10,533 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 21:57:11,042 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 21:57:11,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [804123301] [2022-01-31 21:57:11,042 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [804123301] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 21:57:11,043 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 21:57:11,043 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-01-31 21:57:11,043 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271904525] [2022-01-31 21:57:11,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 21:57:11,043 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-01-31 21:57:11,043 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 21:57:11,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-01-31 21:57:11,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=473, Unknown=0, NotChecked=0, Total=552 [2022-01-31 21:57:11,044 INFO L87 Difference]: Start difference. First operand 3054 states and 4697 transitions. Second operand has 24 states, 24 states have (on average 5.083333333333333) internal successors, (122), 23 states have internal predecessors, (122), 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 21:57:13,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 21:57:13,311 INFO L93 Difference]: Finished difference Result 5807 states and 8933 transitions. [2022-01-31 21:57:13,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-31 21:57:13,311 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 5.083333333333333) internal successors, (122), 23 states have internal predecessors, (122), 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 154 [2022-01-31 21:57:13,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 21:57:13,325 INFO L225 Difference]: With dead ends: 5807 [2022-01-31 21:57:13,325 INFO L226 Difference]: Without dead ends: 3103 [2022-01-31 21:57:13,330 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 519 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=231, Invalid=1749, Unknown=0, NotChecked=0, Total=1980 [2022-01-31 21:57:13,331 INFO L933 BasicCegarLoop]: 364 mSDtfsCounter, 400 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 5240 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 400 SdHoareTripleChecker+Valid, 431 SdHoareTripleChecker+Invalid, 5301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 5240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-01-31 21:57:13,331 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [400 Valid, 431 Invalid, 5301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 5240 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-01-31 21:57:13,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3103 states. [2022-01-31 21:57:13,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3103 to 3077. [2022-01-31 21:57:13,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3077 states, 3072 states have (on average 1.53515625) internal successors, (4716), 3072 states have internal predecessors, (4716), 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 21:57:13,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3077 states to 3077 states and 4720 transitions. [2022-01-31 21:57:13,631 INFO L78 Accepts]: Start accepts. Automaton has 3077 states and 4720 transitions. Word has length 154 [2022-01-31 21:57:13,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 21:57:13,631 INFO L470 AbstractCegarLoop]: Abstraction has 3077 states and 4720 transitions. [2022-01-31 21:57:13,631 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 5.083333333333333) internal successors, (122), 23 states have internal predecessors, (122), 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 21:57:13,631 INFO L276 IsEmpty]: Start isEmpty. Operand 3077 states and 4720 transitions. [2022-01-31 21:57:13,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-31 21:57:13,634 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 21:57:13,635 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 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 21:57:13,635 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-31 21:57:13,635 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 21:57:13,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 21:57:13,635 INFO L85 PathProgramCache]: Analyzing trace with hash 1065635683, now seen corresponding path program 1 times [2022-01-31 21:57:13,635 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 21:57:13,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [82579181] [2022-01-31 21:57:13,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 21:57:14,415 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 10 HavocedVariables, 0 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 21:57:14,416 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2022-01-31 21:57:14,416 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 21:57:14,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 21:57:14,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 21:57:14,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 21:57:14,444 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 21:57:14,734 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 21:57:14,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [82579181] [2022-01-31 21:57:14,734 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [82579181] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 21:57:14,734 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 21:57:14,734 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-31 21:57:14,734 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788548393] [2022-01-31 21:57:14,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 21:57:14,734 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-31 21:57:14,735 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 21:57:14,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-31 21:57:14,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2022-01-31 21:57:14,735 INFO L87 Difference]: Start difference. First operand 3077 states and 4720 transitions. Second operand has 19 states, 19 states have (on average 5.473684210526316) internal successors, (104), 18 states have internal predecessors, (104), 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 21:57:16,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 21:57:16,235 INFO L93 Difference]: Finished difference Result 5843 states and 8958 transitions. [2022-01-31 21:57:16,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-31 21:57:16,235 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 5.473684210526316) internal successors, (104), 18 states have internal predecessors, (104), 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 154 [2022-01-31 21:57:16,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 21:57:16,241 INFO L225 Difference]: With dead ends: 5843 [2022-01-31 21:57:16,241 INFO L226 Difference]: Without dead ends: 3116 [2022-01-31 21:57:16,245 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=231, Invalid=959, Unknown=0, NotChecked=0, Total=1190 [2022-01-31 21:57:16,245 INFO L933 BasicCegarLoop]: 358 mSDtfsCounter, 412 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 3170 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 412 SdHoareTripleChecker+Valid, 395 SdHoareTripleChecker+Invalid, 3213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 3170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-31 21:57:16,246 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [412 Valid, 395 Invalid, 3213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 3170 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-31 21:57:16,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3116 states. [2022-01-31 21:57:16,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3116 to 3097. [2022-01-31 21:57:16,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3097 states, 3092 states have (on average 1.5320181112548512) internal successors, (4737), 3092 states have internal predecessors, (4737), 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 21:57:16,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3097 states to 3097 states and 4741 transitions. [2022-01-31 21:57:16,551 INFO L78 Accepts]: Start accepts. Automaton has 3097 states and 4741 transitions. Word has length 154 [2022-01-31 21:57:16,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 21:57:16,551 INFO L470 AbstractCegarLoop]: Abstraction has 3097 states and 4741 transitions. [2022-01-31 21:57:16,551 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 5.473684210526316) internal successors, (104), 18 states have internal predecessors, (104), 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 21:57:16,551 INFO L276 IsEmpty]: Start isEmpty. Operand 3097 states and 4741 transitions. [2022-01-31 21:57:16,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-01-31 21:57:16,554 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 21:57:16,555 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 5, 4, 4, 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 21:57:16,555 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-31 21:57:16,555 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 21:57:16,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 21:57:16,555 INFO L85 PathProgramCache]: Analyzing trace with hash 1817499777, now seen corresponding path program 1 times [2022-01-31 21:57:16,555 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 21:57:16,555 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1036150058] [2022-01-31 21:57:16,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 21:57:17,476 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 21:57:17,518 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 10 HavocedVariables, 0 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 21:57:17,518 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2022-01-31 21:57:17,518 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 21:57:17,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 21:57:17,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 21:57:17,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 21:57:17,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 21:57:18,102 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 21:57:18,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1036150058] [2022-01-31 21:57:18,102 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1036150058] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 21:57:18,102 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 21:57:18,102 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-31 21:57:18,103 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467545628] [2022-01-31 21:57:18,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 21:57:18,103 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-31 21:57:18,103 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 21:57:18,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-31 21:57:18,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=516, Unknown=0, NotChecked=0, Total=600 [2022-01-31 21:57:18,104 INFO L87 Difference]: Start difference. First operand 3097 states and 4741 transitions. Second operand has 25 states, 25 states have (on average 4.92) internal successors, (123), 24 states have internal predecessors, (123), 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 21:57:20,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 21:57:20,163 INFO L93 Difference]: Finished difference Result 5888 states and 9017 transitions. [2022-01-31 21:57:20,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-01-31 21:57:20,164 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.92) internal successors, (123), 24 states have internal predecessors, (123), 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 155 [2022-01-31 21:57:20,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 21:57:20,169 INFO L225 Difference]: With dead ends: 5888 [2022-01-31 21:57:20,169 INFO L226 Difference]: Without dead ends: 3141 [2022-01-31 21:57:20,172 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 88 SyntacticMatches, 12 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 739 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=246, Invalid=1916, Unknown=0, NotChecked=0, Total=2162 [2022-01-31 21:57:20,172 INFO L933 BasicCegarLoop]: 364 mSDtfsCounter, 542 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 4182 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 542 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 4242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 4182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-01-31 21:57:20,172 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [542 Valid, 416 Invalid, 4242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 4182 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-01-31 21:57:20,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3141 states. [2022-01-31 21:57:20,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3141 to 3121. [2022-01-31 21:57:20,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3121 states, 3116 states have (on average 1.5279204107830553) internal successors, (4761), 3116 states have internal predecessors, (4761), 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 21:57:20,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3121 states to 3121 states and 4765 transitions. [2022-01-31 21:57:20,457 INFO L78 Accepts]: Start accepts. Automaton has 3121 states and 4765 transitions. Word has length 155 [2022-01-31 21:57:20,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 21:57:20,457 INFO L470 AbstractCegarLoop]: Abstraction has 3121 states and 4765 transitions. [2022-01-31 21:57:20,457 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.92) internal successors, (123), 24 states have internal predecessors, (123), 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 21:57:20,457 INFO L276 IsEmpty]: Start isEmpty. Operand 3121 states and 4765 transitions. [2022-01-31 21:57:20,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-01-31 21:57:20,460 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 21:57:20,461 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 5, 4, 4, 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 21:57:20,461 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-31 21:57:20,461 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 21:57:20,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 21:57:20,461 INFO L85 PathProgramCache]: Analyzing trace with hash 946072317, now seen corresponding path program 1 times [2022-01-31 21:57:20,461 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 21:57:20,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [201986576] [2022-01-31 21:57:20,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 21:57:21,464 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 21:57:21,526 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 10 HavocedVariables, 0 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 21:57:21,526 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2022-01-31 21:57:21,526 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 21:57:21,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 21:57:21,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 21:57:21,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 21:57:21,586 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 21:57:22,088 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 21:57:22,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [201986576] [2022-01-31 21:57:22,088 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [201986576] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 21:57:22,088 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 21:57:22,088 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-31 21:57:22,088 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805701333] [2022-01-31 21:57:22,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 21:57:22,089 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-31 21:57:22,089 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 21:57:22,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-31 21:57:22,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=517, Unknown=0, NotChecked=0, Total=600 [2022-01-31 21:57:22,089 INFO L87 Difference]: Start difference. First operand 3121 states and 4765 transitions. Second operand has 25 states, 25 states have (on average 4.92) internal successors, (123), 24 states have internal predecessors, (123), 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 21:57:24,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 21:57:24,753 INFO L93 Difference]: Finished difference Result 5940 states and 9069 transitions. [2022-01-31 21:57:24,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-01-31 21:57:24,753 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.92) internal successors, (123), 24 states have internal predecessors, (123), 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 155 [2022-01-31 21:57:24,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 21:57:24,758 INFO L225 Difference]: With dead ends: 5940 [2022-01-31 21:57:24,758 INFO L226 Difference]: Without dead ends: 3169 [2022-01-31 21:57:24,763 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 562 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=243, Invalid=1919, Unknown=0, NotChecked=0, Total=2162 [2022-01-31 21:57:24,763 INFO L933 BasicCegarLoop]: 366 mSDtfsCounter, 551 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 5424 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 551 SdHoareTripleChecker+Valid, 433 SdHoareTripleChecker+Invalid, 5486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 5424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-01-31 21:57:24,763 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [551 Valid, 433 Invalid, 5486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 5424 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-01-31 21:57:24,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3169 states. [2022-01-31 21:57:25,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3169 to 3146. [2022-01-31 21:57:25,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3146 states, 3141 states have (on average 1.5240369309137218) internal successors, (4787), 3141 states have internal predecessors, (4787), 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 21:57:25,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3146 states to 3146 states and 4791 transitions. [2022-01-31 21:57:25,071 INFO L78 Accepts]: Start accepts. Automaton has 3146 states and 4791 transitions. Word has length 155 [2022-01-31 21:57:25,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 21:57:25,071 INFO L470 AbstractCegarLoop]: Abstraction has 3146 states and 4791 transitions. [2022-01-31 21:57:25,071 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.92) internal successors, (123), 24 states have internal predecessors, (123), 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 21:57:25,071 INFO L276 IsEmpty]: Start isEmpty. Operand 3146 states and 4791 transitions. [2022-01-31 21:57:25,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-01-31 21:57:25,074 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 21:57:25,074 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 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 21:57:25,074 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-31 21:57:25,074 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 21:57:25,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 21:57:25,075 INFO L85 PathProgramCache]: Analyzing trace with hash -1370569344, now seen corresponding path program 1 times [2022-01-31 21:57:25,075 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 21:57:25,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [858932698] [2022-01-31 21:57:25,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 21:57:26,088 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 21:57:26,089 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2022-01-31 21:57:26,089 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 21:57:26,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 21:57:26,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 21:57:26,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 21:57:26,123 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 21:57:26,425 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 21:57:26,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [858932698] [2022-01-31 21:57:26,426 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [858932698] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 21:57:26,426 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 21:57:26,426 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-01-31 21:57:26,426 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389981884] [2022-01-31 21:57:26,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 21:57:26,426 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-01-31 21:57:26,426 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 21:57:26,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-01-31 21:57:26,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=290, Unknown=0, NotChecked=0, Total=380 [2022-01-31 21:57:26,427 INFO L87 Difference]: Start difference. First operand 3146 states and 4791 transitions. Second operand has 20 states, 20 states have (on average 5.25) internal successors, (105), 19 states have internal predecessors, (105), 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 21:57:27,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 21:57:27,989 INFO L93 Difference]: Finished difference Result 5981 states and 9100 transitions. [2022-01-31 21:57:27,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-31 21:57:27,989 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 5.25) internal successors, (105), 19 states have internal predecessors, (105), 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 155 [2022-01-31 21:57:27,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 21:57:27,995 INFO L225 Difference]: With dead ends: 5981 [2022-01-31 21:57:27,995 INFO L226 Difference]: Without dead ends: 3185 [2022-01-31 21:57:27,999 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 95 SyntacticMatches, 10 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 297 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=264, Invalid=1068, Unknown=0, NotChecked=0, Total=1332 [2022-01-31 21:57:28,000 INFO L933 BasicCegarLoop]: 362 mSDtfsCounter, 565 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 3417 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 565 SdHoareTripleChecker+Valid, 404 SdHoareTripleChecker+Invalid, 3461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 3417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-31 21:57:28,000 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [565 Valid, 404 Invalid, 3461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 3417 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-31 21:57:28,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3185 states. [2022-01-31 21:57:28,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3185 to 3146. [2022-01-31 21:57:28,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3146 states, 3141 states have (on average 1.5240369309137218) internal successors, (4787), 3141 states have internal predecessors, (4787), 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 21:57:28,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3146 states to 3146 states and 4791 transitions. [2022-01-31 21:57:28,316 INFO L78 Accepts]: Start accepts. Automaton has 3146 states and 4791 transitions. Word has length 155 [2022-01-31 21:57:28,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 21:57:28,317 INFO L470 AbstractCegarLoop]: Abstraction has 3146 states and 4791 transitions. [2022-01-31 21:57:28,317 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 5.25) internal successors, (105), 19 states have internal predecessors, (105), 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 21:57:28,317 INFO L276 IsEmpty]: Start isEmpty. Operand 3146 states and 4791 transitions. [2022-01-31 21:57:28,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-01-31 21:57:28,320 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 21:57:28,320 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 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 21:57:28,320 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-31 21:57:28,320 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 21:57:28,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 21:57:28,320 INFO L85 PathProgramCache]: Analyzing trace with hash 1017994686, now seen corresponding path program 1 times [2022-01-31 21:57:28,320 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 21:57:28,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1103575377] [2022-01-31 21:57:28,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 21:57:29,159 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 10 HavocedVariables, 0 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 21:57:29,159 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2022-01-31 21:57:29,159 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 21:57:29,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 21:57:29,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 21:57:29,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 21:57:29,187 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 21:57:29,490 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 21:57:29,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1103575377] [2022-01-31 21:57:29,491 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1103575377] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 21:57:29,491 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 21:57:29,491 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-31 21:57:29,491 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356179859] [2022-01-31 21:57:29,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 21:57:29,491 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-31 21:57:29,491 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 21:57:29,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-31 21:57:29,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2022-01-31 21:57:29,492 INFO L87 Difference]: Start difference. First operand 3146 states and 4791 transitions. Second operand has 19 states, 19 states have (on average 5.526315789473684) internal successors, (105), 18 states have internal predecessors, (105), 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 21:57:30,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 21:57:30,879 INFO L93 Difference]: Finished difference Result 5986 states and 9105 transitions. [2022-01-31 21:57:30,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-31 21:57:30,880 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 5.526315789473684) internal successors, (105), 18 states have internal predecessors, (105), 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 155 [2022-01-31 21:57:30,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 21:57:30,885 INFO L225 Difference]: With dead ends: 5986 [2022-01-31 21:57:30,885 INFO L226 Difference]: Without dead ends: 3190 [2022-01-31 21:57:30,889 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=231, Invalid=959, Unknown=0, NotChecked=0, Total=1190 [2022-01-31 21:57:30,890 INFO L933 BasicCegarLoop]: 364 mSDtfsCounter, 426 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 3214 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 426 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 3257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 3214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-31 21:57:30,890 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [426 Valid, 406 Invalid, 3257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 3214 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-31 21:57:30,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3190 states. [2022-01-31 21:57:31,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3190 to 3133. [2022-01-31 21:57:31,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3133 states, 3128 states have (on average 1.5262148337595909) internal successors, (4774), 3128 states have internal predecessors, (4774), 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 21:57:31,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3133 states to 3133 states and 4778 transitions. [2022-01-31 21:57:31,200 INFO L78 Accepts]: Start accepts. Automaton has 3133 states and 4778 transitions. Word has length 155 [2022-01-31 21:57:31,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 21:57:31,200 INFO L470 AbstractCegarLoop]: Abstraction has 3133 states and 4778 transitions. [2022-01-31 21:57:31,201 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 5.526315789473684) internal successors, (105), 18 states have internal predecessors, (105), 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 21:57:31,201 INFO L276 IsEmpty]: Start isEmpty. Operand 3133 states and 4778 transitions. [2022-01-31 21:57:31,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-01-31 21:57:31,204 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 21:57:31,204 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 5, 4, 4, 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, 1] [2022-01-31 21:57:31,204 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-31 21:57:31,204 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 21:57:31,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 21:57:31,204 INFO L85 PathProgramCache]: Analyzing trace with hash -159248858, now seen corresponding path program 1 times [2022-01-31 21:57:31,204 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 21:57:31,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [645510306] [2022-01-31 21:57:31,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 21:57:32,080 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 21:57:32,152 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 21:57:32,152 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2022-01-31 21:57:32,152 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 21:57:32,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 21:57:32,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 21:57:32,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 21:57:32,180 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 21:57:32,910 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 21:57:32,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [645510306] [2022-01-31 21:57:32,911 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [645510306] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 21:57:32,911 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 21:57:32,911 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-31 21:57:32,911 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068467109] [2022-01-31 21:57:32,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 21:57:32,911 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-31 21:57:32,911 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 21:57:32,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-31 21:57:32,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=561, Unknown=0, NotChecked=0, Total=650 [2022-01-31 21:57:32,912 INFO L87 Difference]: Start difference. First operand 3133 states and 4778 transitions. Second operand has 26 states, 26 states have (on average 4.769230769230769) internal successors, (124), 25 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 21:57:34,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 21:57:34,901 INFO L93 Difference]: Finished difference Result 5958 states and 9087 transitions. [2022-01-31 21:57:34,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-01-31 21:57:34,903 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.769230769230769) internal successors, (124), 25 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 156 [2022-01-31 21:57:34,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 21:57:34,909 INFO L225 Difference]: With dead ends: 5958 [2022-01-31 21:57:34,909 INFO L226 Difference]: Without dead ends: 3175 [2022-01-31 21:57:34,916 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 89 SyntacticMatches, 12 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 783 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=261, Invalid=2091, Unknown=0, NotChecked=0, Total=2352 [2022-01-31 21:57:34,917 INFO L933 BasicCegarLoop]: 368 mSDtfsCounter, 396 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 4929 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 396 SdHoareTripleChecker+Valid, 425 SdHoareTripleChecker+Invalid, 4989 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 4929 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-01-31 21:57:34,917 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [396 Valid, 425 Invalid, 4989 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 4929 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-01-31 21:57:34,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3175 states. [2022-01-31 21:57:35,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3175 to 3133. [2022-01-31 21:57:35,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3133 states, 3128 states have (on average 1.5262148337595909) internal successors, (4774), 3128 states have internal predecessors, (4774), 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 21:57:35,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3133 states to 3133 states and 4778 transitions. [2022-01-31 21:57:35,222 INFO L78 Accepts]: Start accepts. Automaton has 3133 states and 4778 transitions. Word has length 156 [2022-01-31 21:57:35,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 21:57:35,222 INFO L470 AbstractCegarLoop]: Abstraction has 3133 states and 4778 transitions. [2022-01-31 21:57:35,222 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 4.769230769230769) internal successors, (124), 25 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 21:57:35,222 INFO L276 IsEmpty]: Start isEmpty. Operand 3133 states and 4778 transitions. [2022-01-31 21:57:35,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-01-31 21:57:35,225 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 21:57:35,225 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 4, 4, 4, 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 21:57:35,225 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-31 21:57:35,225 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 21:57:35,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 21:57:35,226 INFO L85 PathProgramCache]: Analyzing trace with hash -583847425, now seen corresponding path program 2 times [2022-01-31 21:57:35,226 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 21:57:35,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1994369932] [2022-01-31 21:57:35,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 21:57:36,287 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 21:57:36,381 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 21:57:36,417 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 21:57:36,417 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 21:57:36,417 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2022-01-31 21:57:36,417 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 21:57:36,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 21:57:36,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 21:57:36,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 21:57:36,464 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 21:57:36,787 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 21:57:36,787 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1994369932] [2022-01-31 21:57:36,787 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1994369932] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 21:57:36,788 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 21:57:36,788 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-01-31 21:57:36,788 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979813038] [2022-01-31 21:57:36,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 21:57:36,788 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-01-31 21:57:36,788 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 21:57:36,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-01-31 21:57:36,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=296, Unknown=0, NotChecked=0, Total=380 [2022-01-31 21:57:36,789 INFO L87 Difference]: Start difference. First operand 3133 states and 4778 transitions. Second operand has 20 states, 20 states have (on average 5.4) internal successors, (108), 19 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 21:57:38,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 21:57:38,526 INFO L93 Difference]: Finished difference Result 9594 states and 14571 transitions. [2022-01-31 21:57:38,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-31 21:57:38,526 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 5.4) internal successors, (108), 19 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 157 [2022-01-31 21:57:38,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 21:57:38,535 INFO L225 Difference]: With dead ends: 9594 [2022-01-31 21:57:38,536 INFO L226 Difference]: Without dead ends: 6474 [2022-01-31 21:57:38,540 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 301 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=246, Invalid=1086, Unknown=0, NotChecked=0, Total=1332 [2022-01-31 21:57:38,540 INFO L933 BasicCegarLoop]: 350 mSDtfsCounter, 847 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 3098 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 847 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 3151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 3098 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-31 21:57:38,541 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [847 Valid, 362 Invalid, 3151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 3098 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-31 21:57:38,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6474 states. [2022-01-31 21:57:39,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6474 to 6127. [2022-01-31 21:57:39,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6127 states, 6122 states have (on average 1.5096373734073831) internal successors, (9242), 6122 states have internal predecessors, (9242), 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 21:57:39,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6127 states to 6127 states and 9246 transitions. [2022-01-31 21:57:39,166 INFO L78 Accepts]: Start accepts. Automaton has 6127 states and 9246 transitions. Word has length 157 [2022-01-31 21:57:39,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 21:57:39,167 INFO L470 AbstractCegarLoop]: Abstraction has 6127 states and 9246 transitions. [2022-01-31 21:57:39,167 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 5.4) internal successors, (108), 19 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 21:57:39,167 INFO L276 IsEmpty]: Start isEmpty. Operand 6127 states and 9246 transitions. [2022-01-31 21:57:39,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-01-31 21:57:39,174 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 21:57:39,174 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 4, 4, 4, 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, 1] [2022-01-31 21:57:39,174 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-31 21:57:39,174 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 21:57:39,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 21:57:39,174 INFO L85 PathProgramCache]: Analyzing trace with hash 1101803481, now seen corresponding path program 1 times [2022-01-31 21:57:39,174 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 21:57:39,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [919640264] [2022-01-31 21:57:39,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 21:57:40,111 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 21:57:40,198 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 21:57:40,243 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 21:57:40,243 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 21:57:40,244 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2022-01-31 21:57:40,244 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 21:57:40,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 21:57:40,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 21:57:40,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 21:57:40,300 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 21:57:40,335 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 21:57:40,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [919640264] [2022-01-31 21:57:40,336 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [919640264] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 21:57:40,336 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 21:57:40,336 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-31 21:57:40,336 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804605363] [2022-01-31 21:57:40,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 21:57:40,336 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-31 21:57:40,336 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 21:57:40,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-31 21:57:40,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2022-01-31 21:57:40,337 INFO L87 Difference]: Start difference. First operand 6127 states and 9246 transitions. Second operand has 11 states, 11 states have (on average 8.636363636363637) internal successors, (95), 10 states have internal predecessors, (95), 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 21:57:42,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 21:57:42,001 INFO L93 Difference]: Finished difference Result 17628 states and 26669 transitions. [2022-01-31 21:57:42,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-31 21:57:42,001 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.636363636363637) internal successors, (95), 10 states have internal predecessors, (95), 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 21:57:42,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 21:57:42,015 INFO L225 Difference]: With dead ends: 17628 [2022-01-31 21:57:42,015 INFO L226 Difference]: Without dead ends: 11517 [2022-01-31 21:57:42,023 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=96, Invalid=246, Unknown=0, NotChecked=0, Total=342 [2022-01-31 21:57:42,023 INFO L933 BasicCegarLoop]: 435 mSDtfsCounter, 641 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 1606 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 641 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 1640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1606 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-31 21:57:42,023 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [641 Valid, 457 Invalid, 1640 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1606 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-31 21:57:42,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11517 states. [2022-01-31 21:57:43,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11517 to 9683. [2022-01-31 21:57:43,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9683 states, 9678 states have (on average 1.5088861334986567) internal successors, (14603), 9678 states have internal predecessors, (14603), 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 21:57:43,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9683 states to 9683 states and 14607 transitions. [2022-01-31 21:57:43,189 INFO L78 Accepts]: Start accepts. Automaton has 9683 states and 14607 transitions. Word has length 158 [2022-01-31 21:57:43,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 21:57:43,189 INFO L470 AbstractCegarLoop]: Abstraction has 9683 states and 14607 transitions. [2022-01-31 21:57:43,189 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.636363636363637) internal successors, (95), 10 states have internal predecessors, (95), 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 21:57:43,189 INFO L276 IsEmpty]: Start isEmpty. Operand 9683 states and 14607 transitions. [2022-01-31 21:57:43,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2022-01-31 21:57:43,199 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 21:57:43,199 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 5, 4, 4, 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 21:57:43,199 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-31 21:57:43,199 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 21:57:43,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 21:57:43,199 INFO L85 PathProgramCache]: Analyzing trace with hash -1518578871, now seen corresponding path program 1 times [2022-01-31 21:57:43,199 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 21:57:43,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [629671533] [2022-01-31 21:57:43,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 21:57:43,313 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 21:57:46,489 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 9 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 21:57:46,561 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 21:57:46,622 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 21:57:46,679 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 21:57:46,724 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 5 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=3, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 21:57:46,797 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 21:57:46,797 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 21:57:46,854 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 21:57:46,927 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 21:57:46,989 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 21:57:47,090 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 21:57:47,090 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 21:57:47,147 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 21:57:47,208 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 21:57:47,325 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 21:57:47,385 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 21:57:47,426 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 5 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=3, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 21:57:47,482 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 21:57:47,482 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 21:57:47,482 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 21:57:47,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 21:57:47,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 21:57:47,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 21:57:47,618 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 21:57:47,873 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 21:57:47,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [629671533] [2022-01-31 21:57:47,873 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [629671533] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 21:57:47,874 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 21:57:47,874 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-01-31 21:57:47,874 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093582768] [2022-01-31 21:57:47,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 21:57:47,874 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-31 21:57:47,874 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 21:57:47,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-31 21:57:47,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=235, Unknown=0, NotChecked=0, Total=380 [2022-01-31 21:57:47,874 INFO L87 Difference]: Start difference. First operand 9683 states and 14607 transitions. Second operand has 17 states, 17 states have (on average 5.0588235294117645) internal successors, (86), 16 states have internal predecessors, (86), 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 21:57:50,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 21:57:50,660 INFO L93 Difference]: Finished difference Result 26442 states and 40208 transitions. [2022-01-31 21:57:50,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-31 21:57:50,660 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 5.0588235294117645) internal successors, (86), 16 states have internal predecessors, (86), 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 160 [2022-01-31 21:57:50,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 21:57:50,686 INFO L225 Difference]: With dead ends: 26442 [2022-01-31 21:57:50,686 INFO L226 Difference]: Without dead ends: 16775 [2022-01-31 21:57:50,707 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 325 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=360, Invalid=762, Unknown=0, NotChecked=0, Total=1122 [2022-01-31 21:57:50,707 INFO L933 BasicCegarLoop]: 127 mSDtfsCounter, 1503 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 1510 mSolverCounterSat, 138 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1503 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 1648 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 138 IncrementalHoareTripleChecker+Valid, 1510 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-31 21:57:50,707 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1503 Valid, 139 Invalid, 1648 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [138 Valid, 1510 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-31 21:57:50,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16775 states. [2022-01-31 21:57:52,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16775 to 11262. [2022-01-31 21:57:52,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11262 states, 11257 states have (on average 1.5143466287643244) internal successors, (17047), 11257 states have internal predecessors, (17047), 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 21:57:52,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11262 states to 11262 states and 17051 transitions. [2022-01-31 21:57:52,055 INFO L78 Accepts]: Start accepts. Automaton has 11262 states and 17051 transitions. Word has length 160 [2022-01-31 21:57:52,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 21:57:52,055 INFO L470 AbstractCegarLoop]: Abstraction has 11262 states and 17051 transitions. [2022-01-31 21:57:52,055 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.0588235294117645) internal successors, (86), 16 states have internal predecessors, (86), 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 21:57:52,055 INFO L276 IsEmpty]: Start isEmpty. Operand 11262 states and 17051 transitions. [2022-01-31 21:57:52,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-01-31 21:57:52,068 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 21:57:52,068 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 7, 7, 7, 7, 7, 6, 6, 5, 4, 4, 3, 3, 3, 3, 3, 3, 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 21:57:52,069 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-31 21:57:52,069 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 21:57:52,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 21:57:52,069 INFO L85 PathProgramCache]: Analyzing trace with hash -1255119940, now seen corresponding path program 1 times [2022-01-31 21:57:52,069 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 21:57:52,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [280968307] [2022-01-31 21:57:52,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 21:57:53,160 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 21:57:53,357 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 21:57:53,499 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 21:57:53,610 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 21:57:53,719 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 16 HavocedVariables, 0 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 21:57:53,719 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2022-01-31 21:57:53,719 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 21:57:53,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 21:57:53,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 21:57:53,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 21:57:53,740 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 21:57:54,158 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 21:57:54,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [280968307] [2022-01-31 21:57:54,158 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [280968307] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 21:57:54,158 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 21:57:54,158 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-31 21:57:54,158 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81990365] [2022-01-31 21:57:54,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 21:57:54,159 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-31 21:57:54,159 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 21:57:54,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-31 21:57:54,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=227, Unknown=0, NotChecked=0, Total=306 [2022-01-31 21:57:54,159 INFO L87 Difference]: Start difference. First operand 11262 states and 17051 transitions. Second operand has 18 states, 18 states have (on average 5.111111111111111) internal successors, (92), 17 states have internal predecessors, (92), 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 21:57:56,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 21:57:56,948 INFO L93 Difference]: Finished difference Result 23021 states and 34843 transitions. [2022-01-31 21:57:56,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-31 21:57:56,949 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.111111111111111) internal successors, (92), 17 states have internal predecessors, (92), 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 174 [2022-01-31 21:57:56,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 21:57:56,984 INFO L225 Difference]: With dead ends: 23021 [2022-01-31 21:57:56,984 INFO L226 Difference]: Without dead ends: 12198 [2022-01-31 21:57:56,999 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=231, Invalid=825, Unknown=0, NotChecked=0, Total=1056 [2022-01-31 21:57:56,999 INFO L933 BasicCegarLoop]: 333 mSDtfsCounter, 443 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 1976 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 443 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 1996 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1976 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-31 21:57:57,001 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [443 Valid, 360 Invalid, 1996 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 1976 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-31 21:57:57,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12198 states. [2022-01-31 21:57:58,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12198 to 11064. [2022-01-31 21:57:58,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11064 states, 11059 states have (on average 1.4845826928293697) internal successors, (16418), 11059 states have internal predecessors, (16418), 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 21:57:58,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11064 states to 11064 states and 16422 transitions. [2022-01-31 21:57:58,323 INFO L78 Accepts]: Start accepts. Automaton has 11064 states and 16422 transitions. Word has length 174 [2022-01-31 21:57:58,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 21:57:58,323 INFO L470 AbstractCegarLoop]: Abstraction has 11064 states and 16422 transitions. [2022-01-31 21:57:58,323 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 5.111111111111111) internal successors, (92), 17 states have internal predecessors, (92), 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 21:57:58,323 INFO L276 IsEmpty]: Start isEmpty. Operand 11064 states and 16422 transitions. [2022-01-31 21:57:58,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-01-31 21:57:58,335 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 21:57:58,335 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 8, 7, 7, 7, 7, 6, 6, 5, 4, 4, 3, 3, 3, 3, 3, 3, 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] [2022-01-31 21:57:58,335 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-31 21:57:58,336 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 21:57:58,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 21:57:58,336 INFO L85 PathProgramCache]: Analyzing trace with hash 810234618, now seen corresponding path program 1 times [2022-01-31 21:57:58,336 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 21:57:58,336 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [505158936] [2022-01-31 21:57:58,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 21:57:59,146 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 21:57:59,272 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 21:57:59,364 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 21:57:59,443 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 21:57:59,490 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 14 HavocedVariables, 0 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 21:57:59,491 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2022-01-31 21:57:59,491 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 21:57:59,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 21:57:59,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 21:57:59,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 21:57:59,528 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 21:57:59,529 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 21:57:59,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [505158936] [2022-01-31 21:57:59,529 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [505158936] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 21:57:59,529 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 21:57:59,529 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-31 21:57:59,529 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903007382] [2022-01-31 21:57:59,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 21:57:59,531 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-31 21:57:59,532 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 21:57:59,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-31 21:57:59,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-31 21:57:59,533 INFO L87 Difference]: Start difference. First operand 11064 states and 16422 transitions. Second operand has 6 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 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 21:58:01,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 21:58:01,251 INFO L93 Difference]: Finished difference Result 21690 states and 32078 transitions. [2022-01-31 21:58:01,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-31 21:58:01,252 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 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 174 [2022-01-31 21:58:01,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 21:58:01,266 INFO L225 Difference]: With dead ends: 21690 [2022-01-31 21:58:01,267 INFO L226 Difference]: Without dead ends: 11496 [2022-01-31 21:58:01,279 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 161 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 21:58:01,280 INFO L933 BasicCegarLoop]: 106 mSDtfsCounter, 518 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 518 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-31 21:58:01,280 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [518 Valid, 123 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-31 21:58:01,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11496 states. [2022-01-31 21:58:02,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11496 to 11064. [2022-01-31 21:58:02,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11064 states, 11059 states have (on average 1.4656840582331132) internal successors, (16209), 11059 states have internal predecessors, (16209), 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 21:58:02,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11064 states to 11064 states and 16213 transitions. [2022-01-31 21:58:02,654 INFO L78 Accepts]: Start accepts. Automaton has 11064 states and 16213 transitions. Word has length 174 [2022-01-31 21:58:02,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 21:58:02,654 INFO L470 AbstractCegarLoop]: Abstraction has 11064 states and 16213 transitions. [2022-01-31 21:58:02,654 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 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 21:58:02,655 INFO L276 IsEmpty]: Start isEmpty. Operand 11064 states and 16213 transitions. [2022-01-31 21:58:02,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-31 21:58:02,665 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 21:58:02,665 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 7, 7, 7, 7, 7, 6, 6, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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 21:58:02,665 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-31 21:58:02,666 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 21:58:02,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 21:58:02,666 INFO L85 PathProgramCache]: Analyzing trace with hash 2131645459, now seen corresponding path program 1 times [2022-01-31 21:58:02,666 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 21:58:02,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1123720581] [2022-01-31 21:58:02,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 21:58:03,801 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 21:58:04,251 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 21:58:04,392 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 21:58:04,479 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 21:58:04,525 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 17 HavocedVariables, 0 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 21:58:04,525 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2022-01-31 21:58:04,529 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 21:58:04,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 21:58:04,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 21:58:04,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 21:58:04,555 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 21:58:05,068 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 21:58:05,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1123720581] [2022-01-31 21:58:05,068 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1123720581] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 21:58:05,069 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 21:58:05,069 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-01-31 21:58:05,069 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434935042] [2022-01-31 21:58:05,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 21:58:05,069 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-01-31 21:58:05,069 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 21:58:05,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-01-31 21:58:05,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=294, Unknown=0, NotChecked=0, Total=380 [2022-01-31 21:58:05,070 INFO L87 Difference]: Start difference. First operand 11064 states and 16213 transitions. Second operand has 20 states, 20 states have (on average 5.15) internal successors, (103), 19 states have internal predecessors, (103), 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 21:58:07,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 21:58:07,764 INFO L93 Difference]: Finished difference Result 23322 states and 34126 transitions. [2022-01-31 21:58:07,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-31 21:58:07,765 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 5.15) internal successors, (103), 19 states have internal predecessors, (103), 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 176 [2022-01-31 21:58:07,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 21:58:07,781 INFO L225 Difference]: With dead ends: 23322 [2022-01-31 21:58:07,781 INFO L226 Difference]: Without dead ends: 13128 [2022-01-31 21:58:07,791 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 135 SyntacticMatches, 6 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 363 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=252, Invalid=1080, Unknown=0, NotChecked=0, Total=1332 [2022-01-31 21:58:07,791 INFO L933 BasicCegarLoop]: 179 mSDtfsCounter, 378 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 1628 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 378 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 1662 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1628 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-31 21:58:07,792 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [378 Valid, 221 Invalid, 1662 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1628 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-31 21:58:07,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13128 states. [2022-01-31 21:58:09,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13128 to 11381. [2022-01-31 21:58:09,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11381 states, 11376 states have (on average 1.4614099859353025) internal successors, (16625), 11376 states have internal predecessors, (16625), 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 21:58:09,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11381 states to 11381 states and 16629 transitions. [2022-01-31 21:58:09,255 INFO L78 Accepts]: Start accepts. Automaton has 11381 states and 16629 transitions. Word has length 176 [2022-01-31 21:58:09,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 21:58:09,256 INFO L470 AbstractCegarLoop]: Abstraction has 11381 states and 16629 transitions. [2022-01-31 21:58:09,256 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 5.15) internal successors, (103), 19 states have internal predecessors, (103), 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 21:58:09,256 INFO L276 IsEmpty]: Start isEmpty. Operand 11381 states and 16629 transitions. [2022-01-31 21:58:09,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-01-31 21:58:09,266 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 21:58:09,266 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 5, 5, 5, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 21:58:09,266 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-31 21:58:09,267 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 21:58:09,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 21:58:09,267 INFO L85 PathProgramCache]: Analyzing trace with hash -1200646608, now seen corresponding path program 1 times [2022-01-31 21:58:09,267 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 21:58:09,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [579619986] [2022-01-31 21:58:09,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 21:58:09,374 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 21:58:09,438 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 21:58:09,501 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 21:58:09,549 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 5 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=3, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 21:58:09,610 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 21:58:09,639 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 4 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=2, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 21:58:42,123 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 10 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=6, 2=1}, 1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 21:58:42,196 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 21:58:42,196 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 21:58:42,257 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 21:58:42,320 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 21:58:42,388 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 21:58:42,517 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 21:58:42,518 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 21:58:42,566 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 21:58:42,617 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 21:58:42,727 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 21:58:42,782 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 21:58:42,803 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 4 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=2, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 21:58:42,842 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 5 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=3, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 21:58:42,902 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 21:58:42,902 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 21:58:42,902 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 21:58:42,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 21:58:42,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 21:58:42,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 21:58:42,965 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 21:58:43,469 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 21:58:43,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [579619986] [2022-01-31 21:58:43,469 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [579619986] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 21:58:43,469 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 21:58:43,469 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-01-31 21:58:43,469 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434146092] [2022-01-31 21:58:43,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 21:58:43,470 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-01-31 21:58:43,470 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 21:58:43,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-01-31 21:58:43,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=393, Unknown=0, NotChecked=0, Total=506 [2022-01-31 21:58:43,470 INFO L87 Difference]: Start difference. First operand 11381 states and 16629 transitions. Second operand has 23 states, 23 states have (on average 4.217391304347826) internal successors, (97), 22 states have internal predecessors, (97), 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 21:58:48,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 21:58:48,282 INFO L93 Difference]: Finished difference Result 35888 states and 52077 transitions. [2022-01-31 21:58:48,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-31 21:58:48,282 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 4.217391304347826) internal successors, (97), 22 states have internal predecessors, (97), 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 21:58:48,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 21:58:48,314 INFO L225 Difference]: With dead ends: 35888 [2022-01-31 21:58:48,314 INFO L226 Difference]: Without dead ends: 22706 [2022-01-31 21:58:48,331 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 539 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=333, Invalid=1473, Unknown=0, NotChecked=0, Total=1806 [2022-01-31 21:58:48,332 INFO L933 BasicCegarLoop]: 133 mSDtfsCounter, 1107 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 2670 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1107 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 2727 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 2670 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-31 21:58:48,332 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1107 Valid, 160 Invalid, 2727 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 2670 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-31 21:58:48,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22706 states. [2022-01-31 21:58:50,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22706 to 13000. [2022-01-31 21:58:50,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13000 states, 12995 states have (on average 1.4664871104270873) internal successors, (19057), 12995 states have internal predecessors, (19057), 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 21:58:50,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13000 states to 13000 states and 19061 transitions. [2022-01-31 21:58:50,412 INFO L78 Accepts]: Start accepts. Automaton has 13000 states and 19061 transitions. Word has length 178 [2022-01-31 21:58:50,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 21:58:50,412 INFO L470 AbstractCegarLoop]: Abstraction has 13000 states and 19061 transitions. [2022-01-31 21:58:50,412 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 4.217391304347826) internal successors, (97), 22 states have internal predecessors, (97), 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 21:58:50,412 INFO L276 IsEmpty]: Start isEmpty. Operand 13000 states and 19061 transitions. [2022-01-31 21:58:50,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-01-31 21:58:50,423 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 21:58:50,423 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 8, 8, 8, 8, 7, 7, 5, 5, 5, 3, 3, 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] [2022-01-31 21:58:50,423 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-31 21:58:50,423 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 21:58:50,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 21:58:50,423 INFO L85 PathProgramCache]: Analyzing trace with hash 951281874, now seen corresponding path program 1 times [2022-01-31 21:58:50,423 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 21:58:50,423 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1274590020] [2022-01-31 21:58:50,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 21:58:50,538 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 21:58:50,609 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 21:58:50,726 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 21:58:50,789 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 21:58:50,834 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 5 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=3, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 21:58:50,891 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 21:58:50,920 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 4 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=2, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 21:58:50,983 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 21:58:50,984 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 21:58:51,058 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 21:58:51,173 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 21:58:51,227 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 21:58:51,286 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 21:58:51,286 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 21:58:51,340 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 21:58:51,399 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 21:58:51,458 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 21:58:51,481 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 4 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=2, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 21:58:51,519 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 5 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=3, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 21:58:51,649 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 21:58:51,713 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 21:58:51,713 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 21:58:51,714 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 21:58:51,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 21:58:51,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 21:58:51,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 21:58:51,806 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 21:58:52,336 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 21:58:52,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1274590020] [2022-01-31 21:58:52,336 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1274590020] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 21:58:52,337 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 21:58:52,337 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-01-31 21:58:52,337 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775203792] [2022-01-31 21:58:52,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 21:58:52,337 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-01-31 21:58:52,337 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 21:58:52,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-01-31 21:58:52,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=195, Invalid=455, Unknown=0, NotChecked=0, Total=650 [2022-01-31 21:58:52,338 INFO L87 Difference]: Start difference. First operand 13000 states and 19061 transitions. Second operand has 23 states, 23 states have (on average 4.217391304347826) internal successors, (97), 22 states have internal predecessors, (97), 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 21:58:56,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 21:58:56,884 INFO L93 Difference]: Finished difference Result 21113 states and 30775 transitions. [2022-01-31 21:58:56,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-31 21:58:56,885 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 4.217391304347826) internal successors, (97), 22 states have internal predecessors, (97), 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 21:58:56,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 21:58:56,904 INFO L225 Difference]: With dead ends: 21113 [2022-01-31 21:58:56,904 INFO L226 Difference]: Without dead ends: 16522 [2022-01-31 21:58:56,913 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 595 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=504, Invalid=1566, Unknown=0, NotChecked=0, Total=2070 [2022-01-31 21:58:56,913 INFO L933 BasicCegarLoop]: 137 mSDtfsCounter, 937 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 2614 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 937 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 2651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 2614 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-31 21:58:56,913 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [937 Valid, 179 Invalid, 2651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 2614 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-31 21:58:56,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16522 states. [2022-01-31 21:58:59,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16522 to 13327. [2022-01-31 21:58:59,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13327 states, 13322 states have (on average 1.465770905269479) internal successors, (19527), 13322 states have internal predecessors, (19527), 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 21:58:59,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13327 states to 13327 states and 19531 transitions. [2022-01-31 21:58:59,156 INFO L78 Accepts]: Start accepts. Automaton has 13327 states and 19531 transitions. Word has length 178 [2022-01-31 21:58:59,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 21:58:59,156 INFO L470 AbstractCegarLoop]: Abstraction has 13327 states and 19531 transitions. [2022-01-31 21:58:59,156 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 4.217391304347826) internal successors, (97), 22 states have internal predecessors, (97), 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 21:58:59,156 INFO L276 IsEmpty]: Start isEmpty. Operand 13327 states and 19531 transitions. [2022-01-31 21:58:59,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-01-31 21:58:59,170 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 21:58:59,170 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 5, 5, 5, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 21:58:59,170 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-01-31 21:58:59,170 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 21:58:59,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 21:58:59,171 INFO L85 PathProgramCache]: Analyzing trace with hash 1313175812, now seen corresponding path program 1 times [2022-01-31 21:58:59,171 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 21:58:59,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1563810088] [2022-01-31 21:58:59,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 21:58:59,312 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 21:58:59,313 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 21:58:59,313 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 21:59:02,405 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 9 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 21:59:02,459 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 21:59:02,498 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 5 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=3, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 21:59:02,551 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 21:59:02,580 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 4 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=2, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 21:59:02,692 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 21:59:02,693 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 21:59:02,753 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 21:59:02,870 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=7}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 21:59:02,934 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 21:59:03,090 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 21:59:03,090 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 21:59:03,152 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 21:59:03,270 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=7}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 21:59:03,367 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 21:59:03,387 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 4 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=2, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 21:59:03,435 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 5 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=3, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 21:59:03,488 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 21:59:03,601 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 21:59:03,602 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 21:59:03,602 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 21:59:03,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 21:59:03,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 21:59:03,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 21:59:03,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 21:59:03,954 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 21:59:03,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1563810088] [2022-01-31 21:59:03,955 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1563810088] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 21:59:03,955 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 21:59:03,955 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-31 21:59:03,955 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683387289] [2022-01-31 21:59:03,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 21:59:03,955 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-31 21:59:03,955 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 21:59:03,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-31 21:59:03,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=265, Unknown=0, NotChecked=0, Total=420 [2022-01-31 21:59:03,956 INFO L87 Difference]: Start difference. First operand 13327 states and 19531 transitions. Second operand has 18 states, 18 states have (on average 4.833333333333333) internal successors, (87), 17 states have internal predecessors, (87), 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 21:59:08,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 21:59:08,122 INFO L93 Difference]: Finished difference Result 24127 states and 35420 transitions. [2022-01-31 21:59:08,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-31 21:59:08,122 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 4.833333333333333) internal successors, (87), 17 states have internal predecessors, (87), 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 179 [2022-01-31 21:59:08,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 21:59:08,148 INFO L225 Difference]: With dead ends: 24127 [2022-01-31 21:59:08,149 INFO L226 Difference]: Without dead ends: 16961 [2022-01-31 21:59:08,162 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 144 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 378 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=390, Invalid=870, Unknown=0, NotChecked=0, Total=1260 [2022-01-31 21:59:08,163 INFO L933 BasicCegarLoop]: 113 mSDtfsCounter, 1241 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 1539 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1241 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 1624 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 1539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-31 21:59:08,163 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1241 Valid, 135 Invalid, 1624 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 1539 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-31 21:59:08,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16961 states. [2022-01-31 21:59:10,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16961 to 13670. [2022-01-31 21:59:10,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13670 states, 13665 states have (on average 1.4651298938894988) internal successors, (20021), 13665 states have internal predecessors, (20021), 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 21:59:10,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13670 states to 13670 states and 20025 transitions. [2022-01-31 21:59:10,571 INFO L78 Accepts]: Start accepts. Automaton has 13670 states and 20025 transitions. Word has length 179 [2022-01-31 21:59:10,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 21:59:10,572 INFO L470 AbstractCegarLoop]: Abstraction has 13670 states and 20025 transitions. [2022-01-31 21:59:10,572 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 4.833333333333333) internal successors, (87), 17 states have internal predecessors, (87), 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 21:59:10,572 INFO L276 IsEmpty]: Start isEmpty. Operand 13670 states and 20025 transitions. [2022-01-31 21:59:10,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-01-31 21:59:10,585 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 21:59:10,585 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 5, 5, 5, 3, 3, 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] [2022-01-31 21:59:10,585 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-01-31 21:59:10,585 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 21:59:10,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 21:59:10,586 INFO L85 PathProgramCache]: Analyzing trace with hash 1179840452, now seen corresponding path program 1 times [2022-01-31 21:59:10,586 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 21:59:10,586 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [971053654] [2022-01-31 21:59:10,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 21:59:10,701 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 21:59:10,762 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 21:59:10,862 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 21:59:10,891 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 5 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=3, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 21:59:10,934 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 21:59:10,982 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 4 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=2, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 21:59:11,054 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 21:59:11,055 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 21:59:11,055 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 21:59:11,055 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 21:59:11,134 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 21:59:11,254 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 21:59:11,318 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 21:59:11,387 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 21:59:11,387 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 21:59:11,449 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 21:59:11,508 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 21:59:11,569 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 21:59:11,601 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 4 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=2, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 21:59:11,638 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 5 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=3, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 21:59:11,784 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 21:59:11,845 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 21:59:11,845 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 21:59:11,845 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 21:59:11,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 21:59:11,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 21:59:11,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 21:59:11,945 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 21:59:12,637 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 21:59:12,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [971053654] [2022-01-31 21:59:12,638 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [971053654] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 21:59:12,638 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 21:59:12,638 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-31 21:59:12,638 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954720895] [2022-01-31 21:59:12,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 21:59:12,638 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-31 21:59:12,638 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 21:59:12,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-31 21:59:12,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=180, Invalid=576, Unknown=0, NotChecked=0, Total=756 [2022-01-31 21:59:12,639 INFO L87 Difference]: Start difference. First operand 13670 states and 20025 transitions. Second operand has 25 states, 24 states have (on average 4.083333333333333) internal successors, (98), 23 states have internal predecessors, (98), 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 21:59:16,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 21:59:16,835 INFO L93 Difference]: Finished difference Result 19012 states and 27586 transitions. [2022-01-31 21:59:16,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-01-31 21:59:16,835 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 4.083333333333333) internal successors, (98), 23 states have internal predecessors, (98), 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 179 [2022-01-31 21:59:16,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 21:59:16,855 INFO L225 Difference]: With dead ends: 19012 [2022-01-31 21:59:16,855 INFO L226 Difference]: Without dead ends: 14421 [2022-01-31 21:59:16,864 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 142 SyntacticMatches, 1 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 673 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=499, Invalid=1951, Unknown=0, NotChecked=0, Total=2450 [2022-01-31 21:59:16,864 INFO L933 BasicCegarLoop]: 147 mSDtfsCounter, 1017 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 2252 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1017 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 2342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 2252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-31 21:59:16,864 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1017 Valid, 194 Invalid, 2342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 2252 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-31 21:59:16,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14421 states. [2022-01-31 21:59:19,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14421 to 13748. [2022-01-31 21:59:19,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13748 states, 13743 states have (on average 1.4649639816633924) internal successors, (20133), 13743 states have internal predecessors, (20133), 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 21:59:19,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13748 states to 13748 states and 20137 transitions. [2022-01-31 21:59:19,241 INFO L78 Accepts]: Start accepts. Automaton has 13748 states and 20137 transitions. Word has length 179 [2022-01-31 21:59:19,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 21:59:19,241 INFO L470 AbstractCegarLoop]: Abstraction has 13748 states and 20137 transitions. [2022-01-31 21:59:19,241 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 4.083333333333333) internal successors, (98), 23 states have internal predecessors, (98), 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 21:59:19,241 INFO L276 IsEmpty]: Start isEmpty. Operand 13748 states and 20137 transitions. [2022-01-31 21:59:19,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-01-31 21:59:19,253 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 21:59:19,254 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 5, 5, 5, 4, 4, 4, 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] [2022-01-31 21:59:19,254 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-01-31 21:59:19,254 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 21:59:19,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 21:59:19,254 INFO L85 PathProgramCache]: Analyzing trace with hash -980884176, now seen corresponding path program 1 times [2022-01-31 21:59:19,254 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 21:59:19,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1397777397] [2022-01-31 21:59:19,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 21:59:19,322 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 21:59:19,395 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 21:59:19,437 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 5 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=3, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 21:59:22,567 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 9 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 21:59:22,683 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 21:59:22,735 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 21:59:22,759 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 4 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=2, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 21:59:22,822 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 21:59:22,822 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 21:59:22,883 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 21:59:22,998 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 21:59:23,054 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 21:59:23,142 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 21:59:23,142 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 21:59:23,207 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 21:59:23,276 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 21:59:23,345 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 21:59:23,375 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 4 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=2, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 21:59:23,423 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 5 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=3, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 21:59:23,539 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 21:59:23,587 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 21:59:23,588 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 21:59:23,588 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 21:59:23,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 21:59:23,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 21:59:23,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 21:59:23,663 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 21:59:24,208 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 21:59:24,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1397777397] [2022-01-31 21:59:24,209 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1397777397] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 21:59:24,209 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 21:59:24,209 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-31 21:59:24,209 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720869663] [2022-01-31 21:59:24,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 21:59:24,209 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-31 21:59:24,209 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 21:59:24,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-31 21:59:24,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=218, Invalid=712, Unknown=0, NotChecked=0, Total=930 [2022-01-31 21:59:24,210 INFO L87 Difference]: Start difference. First operand 13748 states and 20137 transitions. Second operand has 28 states, 28 states have (on average 4.071428571428571) internal successors, (114), 27 states have internal predecessors, (114), 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 21:59:30,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 21:59:30,417 INFO L93 Difference]: Finished difference Result 27677 states and 40979 transitions. [2022-01-31 21:59:30,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-01-31 21:59:30,418 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.071428571428571) internal successors, (114), 27 states have internal predecessors, (114), 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 179 [2022-01-31 21:59:30,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 21:59:30,450 INFO L225 Difference]: With dead ends: 27677 [2022-01-31 21:59:30,450 INFO L226 Difference]: Without dead ends: 23086 [2022-01-31 21:59:30,460 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 980 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=559, Invalid=2521, Unknown=0, NotChecked=0, Total=3080 [2022-01-31 21:59:30,461 INFO L933 BasicCegarLoop]: 137 mSDtfsCounter, 1079 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 3954 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1079 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 4036 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 3954 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-01-31 21:59:30,461 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1079 Valid, 199 Invalid, 4036 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 3954 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-01-31 21:59:30,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23086 states. [2022-01-31 21:59:33,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23086 to 13948. [2022-01-31 21:59:33,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13948 states, 13943 states have (on average 1.4663271892706018) internal successors, (20445), 13943 states have internal predecessors, (20445), 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 21:59:33,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13948 states to 13948 states and 20449 transitions. [2022-01-31 21:59:33,064 INFO L78 Accepts]: Start accepts. Automaton has 13948 states and 20449 transitions. Word has length 179 [2022-01-31 21:59:33,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 21:59:33,064 INFO L470 AbstractCegarLoop]: Abstraction has 13948 states and 20449 transitions. [2022-01-31 21:59:33,064 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.071428571428571) internal successors, (114), 27 states have internal predecessors, (114), 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 21:59:33,064 INFO L276 IsEmpty]: Start isEmpty. Operand 13948 states and 20449 transitions. [2022-01-31 21:59:33,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-01-31 21:59:33,079 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 21:59:33,079 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 5, 5, 5, 4, 4, 4, 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] [2022-01-31 21:59:33,079 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-01-31 21:59:33,079 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 21:59:33,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 21:59:33,080 INFO L85 PathProgramCache]: Analyzing trace with hash -1136864718, now seen corresponding path program 1 times [2022-01-31 21:59:33,080 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 21:59:33,080 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1678645953] [2022-01-31 21:59:33,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 21:59:33,147 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 21:59:33,254 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 21:59:33,305 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 21:59:33,342 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 5 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=3, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 21:59:36,507 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 9 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 21:59:36,580 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 21:59:36,623 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 4 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=2, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 21:59:36,705 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 21:59:36,705 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 21:59:36,793 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 21:59:36,862 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 21:59:36,915 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 21:59:37,019 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 21:59:37,019 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 21:59:37,121 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 21:59:37,171 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 21:59:37,266 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 21:59:37,329 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 21:59:37,349 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 4 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=2, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 21:59:37,381 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 5 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=3, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 21:59:37,434 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 21:59:37,434 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 21:59:37,434 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 21:59:37,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 21:59:37,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 21:59:37,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 21:59:37,559 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 21:59:38,436 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 21:59:38,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1678645953] [2022-01-31 21:59:38,437 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1678645953] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 21:59:38,437 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 21:59:38,437 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-31 21:59:38,437 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24810635] [2022-01-31 21:59:38,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 21:59:38,437 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-31 21:59:38,437 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 21:59:38,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-31 21:59:38,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=248, Invalid=874, Unknown=0, NotChecked=0, Total=1122 [2022-01-31 21:59:38,438 INFO L87 Difference]: Start difference. First operand 13948 states and 20449 transitions. Second operand has 31 states, 30 states have (on average 3.8) internal successors, (114), 29 states have internal predecessors, (114), 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 21:59:44,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 21:59:44,087 INFO L93 Difference]: Finished difference Result 29415 states and 43007 transitions. [2022-01-31 21:59:44,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-31 21:59:44,087 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 30 states have (on average 3.8) internal successors, (114), 29 states have internal predecessors, (114), 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 179 [2022-01-31 21:59:44,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 21:59:44,110 INFO L225 Difference]: With dead ends: 29415 [2022-01-31 21:59:44,110 INFO L226 Difference]: Without dead ends: 15561 [2022-01-31 21:59:44,129 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1192 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=699, Invalid=3083, Unknown=0, NotChecked=0, Total=3782 [2022-01-31 21:59:44,130 INFO L933 BasicCegarLoop]: 141 mSDtfsCounter, 1749 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 4116 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1749 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 4222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 4116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-01-31 21:59:44,130 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1749 Valid, 168 Invalid, 4222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 4116 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-01-31 21:59:44,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15561 states. [2022-01-31 21:59:46,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15561 to 14358. [2022-01-31 21:59:46,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14358 states, 14353 states have (on average 1.4654079286560302) internal successors, (21033), 14353 states have internal predecessors, (21033), 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 21:59:46,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14358 states to 14358 states and 21037 transitions. [2022-01-31 21:59:46,861 INFO L78 Accepts]: Start accepts. Automaton has 14358 states and 21037 transitions. Word has length 179 [2022-01-31 21:59:46,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 21:59:46,862 INFO L470 AbstractCegarLoop]: Abstraction has 14358 states and 21037 transitions. [2022-01-31 21:59:46,862 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 30 states have (on average 3.8) internal successors, (114), 29 states have internal predecessors, (114), 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 21:59:46,862 INFO L276 IsEmpty]: Start isEmpty. Operand 14358 states and 21037 transitions. [2022-01-31 21:59:46,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-01-31 21:59:46,879 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 21:59:46,879 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 8, 8, 8, 8, 7, 7, 5, 5, 5, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 21:59:46,879 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-01-31 21:59:46,879 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 21:59:46,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 21:59:46,880 INFO L85 PathProgramCache]: Analyzing trace with hash -2139648389, now seen corresponding path program 1 times [2022-01-31 21:59:46,880 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 21:59:46,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1429142998] [2022-01-31 21:59:46,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 21:59:47,015 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 21:59:47,085 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 21:59:47,144 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 21:59:47,189 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 5 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=3, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 21:59:47,244 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 21:59:47,274 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 4 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=2, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 21:59:47,344 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 21:59:47,767 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 8 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 21:59:47,768 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 21:59:47,814 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 21:59:47,860 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 21:59:47,908 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 21:59:48,010 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 21:59:48,010 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 21:59:48,057 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 21:59:48,104 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 21:59:48,204 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 21:59:48,252 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 21:59:48,269 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 4 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=2, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 21:59:48,297 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 5 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=3, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 21:59:48,338 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 21:59:48,339 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 21:59:48,339 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 21:59:48,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 21:59:48,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 21:59:48,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 21:59:48,437 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 21:59:48,805 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 21:59:48,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1429142998] [2022-01-31 21:59:48,805 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1429142998] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 21:59:48,805 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 21:59:48,805 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-01-31 21:59:48,805 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430945965] [2022-01-31 21:59:48,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 21:59:48,806 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-01-31 21:59:48,806 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 21:59:48,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-01-31 21:59:48,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=168, Invalid=432, Unknown=0, NotChecked=0, Total=600 [2022-01-31 21:59:48,806 INFO L87 Difference]: Start difference. First operand 14358 states and 21037 transitions. Second operand has 23 states, 23 states have (on average 4.260869565217392) internal successors, (98), 22 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 21:59:54,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 21:59:54,624 INFO L93 Difference]: Finished difference Result 26424 states and 38779 transitions. [2022-01-31 21:59:54,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-31 21:59:54,625 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 4.260869565217392) internal successors, (98), 22 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 179 [2022-01-31 21:59:54,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 21:59:54,658 INFO L225 Difference]: With dead ends: 26424 [2022-01-31 21:59:54,658 INFO L226 Difference]: Without dead ends: 21757 [2022-01-31 21:59:54,672 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 542 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=449, Invalid=1531, Unknown=0, NotChecked=0, Total=1980 [2022-01-31 21:59:54,672 INFO L933 BasicCegarLoop]: 132 mSDtfsCounter, 954 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 2291 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 954 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 2323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 2291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-31 21:59:54,672 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [954 Valid, 144 Invalid, 2323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 2291 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-31 21:59:54,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21757 states. [2022-01-31 21:59:57,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21757 to 14354. [2022-01-31 21:59:57,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14354 states, 14349 states have (on average 1.4654679768624992) internal successors, (21028), 14349 states have internal predecessors, (21028), 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 21:59:57,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14354 states to 14354 states and 21032 transitions. [2022-01-31 21:59:57,651 INFO L78 Accepts]: Start accepts. Automaton has 14354 states and 21032 transitions. Word has length 179 [2022-01-31 21:59:57,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 21:59:57,651 INFO L470 AbstractCegarLoop]: Abstraction has 14354 states and 21032 transitions. [2022-01-31 21:59:57,651 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 4.260869565217392) internal successors, (98), 22 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 21:59:57,651 INFO L276 IsEmpty]: Start isEmpty. Operand 14354 states and 21032 transitions. [2022-01-31 21:59:57,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-01-31 21:59:57,665 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 21:59:57,665 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 8, 8, 8, 7, 7, 5, 5, 5, 3, 3, 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] [2022-01-31 21:59:57,665 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-01-31 21:59:57,666 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 21:59:57,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 21:59:57,666 INFO L85 PathProgramCache]: Analyzing trace with hash 97439130, now seen corresponding path program 1 times [2022-01-31 21:59:57,666 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 21:59:57,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1702645484] [2022-01-31 21:59:57,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 21:59:57,781 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 21:59:57,850 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 21:59:57,966 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 21:59:58,021 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 21:59:58,061 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 5 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=3, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 21:59:58,112 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 21:59:58,137 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 4 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=2, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 21:59:58,202 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 21:59:58,202 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 21:59:58,256 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 21:59:58,364 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 21:59:58,422 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 21:59:58,481 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 21:59:58,482 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 21:59:58,539 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 21:59:58,599 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 21:59:58,657 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 21:59:58,680 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 4 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=2, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 21:59:58,749 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 5 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=3, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 21:59:58,858 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 21:59:58,913 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 21:59:58,913 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 21:59:58,913 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 21:59:58,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 21:59:59,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 21:59:59,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 21:59:59,045 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 21:59:59,567 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 21:59:59,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1702645484] [2022-01-31 21:59:59,568 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1702645484] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 21:59:59,568 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 21:59:59,568 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-31 21:59:59,568 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700931597] [2022-01-31 21:59:59,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 21:59:59,568 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-31 21:59:59,568 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 21:59:59,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-31 21:59:59,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=236, Invalid=520, Unknown=0, NotChecked=0, Total=756 [2022-01-31 21:59:59,569 INFO L87 Difference]: Start difference. First operand 14354 states and 21032 transitions. Second operand has 25 states, 25 states have (on average 3.92) internal successors, (98), 24 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:00:04,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:00:04,992 INFO L93 Difference]: Finished difference Result 28102 states and 41098 transitions. [2022-01-31 22:00:04,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-01-31 22:00:04,993 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.92) internal successors, (98), 24 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 179 [2022-01-31 22:00:04,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:00:05,016 INFO L225 Difference]: With dead ends: 28102 [2022-01-31 22:00:05,016 INFO L226 Difference]: Without dead ends: 16194 [2022-01-31 22:00:05,038 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 736 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=621, Invalid=1829, Unknown=0, NotChecked=0, Total=2450 [2022-01-31 22:00:05,038 INFO L933 BasicCegarLoop]: 147 mSDtfsCounter, 1085 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 2442 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1085 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 2494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 2442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-31 22:00:05,038 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1085 Valid, 169 Invalid, 2494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 2442 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-31 22:00:05,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16194 states. [2022-01-31 22:00:07,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16194 to 13595. [2022-01-31 22:00:07,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13595 states, 13590 states have (on average 1.4640176600441501) internal successors, (19896), 13590 states have internal predecessors, (19896), 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 22:00:07,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13595 states to 13595 states and 19900 transitions. [2022-01-31 22:00:07,841 INFO L78 Accepts]: Start accepts. Automaton has 13595 states and 19900 transitions. Word has length 179 [2022-01-31 22:00:07,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:00:07,841 INFO L470 AbstractCegarLoop]: Abstraction has 13595 states and 19900 transitions. [2022-01-31 22:00:07,841 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.92) internal successors, (98), 24 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:00:07,841 INFO L276 IsEmpty]: Start isEmpty. Operand 13595 states and 19900 transitions. [2022-01-31 22:00:07,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2022-01-31 22:00:07,853 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:00:07,853 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 5, 5, 5, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:00:07,854 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-01-31 22:00:07,854 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:00:07,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:00:07,855 INFO L85 PathProgramCache]: Analyzing trace with hash 958325671, now seen corresponding path program 1 times [2022-01-31 22:00:07,855 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:00:07,855 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [990421188] [2022-01-31 22:00:07,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:00:07,974 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 22:00:08,078 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 22:00:08,130 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 22:00:08,167 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 5 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=3, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:00:08,218 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 22:00:08,248 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 4 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=2, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:00:08,364 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 22:06:31,666 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 11 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=7, 2=1}, 1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:06:31,667 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:06:31,730 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 22:06:32,142 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 22:06:32,263 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=7}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:06:32,328 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 22:06:32,328 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:06:32,392 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 22:06:32,815 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 8 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=8}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:06:32,923 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 22:06:33,028 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=7}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:06:33,050 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 4 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=2, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:06:33,087 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 5 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=3, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:06:33,168 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 22:06:33,169 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:06:33,169 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:06:33,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:06:33,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:06:33,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:06:33,212 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 22:06:33,830 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:06:33,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [990421188] [2022-01-31 22:06:33,830 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [990421188] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:06:33,830 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:06:33,830 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-01-31 22:06:33,830 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322493928] [2022-01-31 22:06:33,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:06:33,831 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-01-31 22:06:33,831 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:06:33,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-01-31 22:06:33,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=430, Unknown=0, NotChecked=0, Total=552 [2022-01-31 22:06:33,837 INFO L87 Difference]: Start difference. First operand 13595 states and 19900 transitions. Second operand has 23 states, 23 states have (on average 4.260869565217392) internal successors, (98), 22 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:06:38,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:06:38,415 INFO L93 Difference]: Finished difference Result 21389 states and 31302 transitions. [2022-01-31 22:06:38,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-31 22:06:38,416 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 4.260869565217392) internal successors, (98), 22 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 180 [2022-01-31 22:06:38,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:06:38,435 INFO L225 Difference]: With dead ends: 21389 [2022-01-31 22:06:38,435 INFO L226 Difference]: Without dead ends: 14532 [2022-01-31 22:06:38,445 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 134 SyntacticMatches, 6 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 626 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=338, Invalid=1554, Unknown=0, NotChecked=0, Total=1892 [2022-01-31 22:06:38,446 INFO L933 BasicCegarLoop]: 124 mSDtfsCounter, 916 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 2157 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 916 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 2181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 2157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-31 22:06:38,446 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [916 Valid, 166 Invalid, 2181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 2157 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-31 22:06:38,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14532 states. [2022-01-31 22:06:41,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14532 to 13611. [2022-01-31 22:06:41,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13611 states, 13606 states have (on average 1.46354549463472) internal successors, (19913), 13606 states have internal predecessors, (19913), 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 22:06:41,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13611 states to 13611 states and 19917 transitions. [2022-01-31 22:06:41,187 INFO L78 Accepts]: Start accepts. Automaton has 13611 states and 19917 transitions. Word has length 180 [2022-01-31 22:06:41,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:06:41,187 INFO L470 AbstractCegarLoop]: Abstraction has 13611 states and 19917 transitions. [2022-01-31 22:06:41,187 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 4.260869565217392) internal successors, (98), 22 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:06:41,187 INFO L276 IsEmpty]: Start isEmpty. Operand 13611 states and 19917 transitions. [2022-01-31 22:06:41,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2022-01-31 22:06:41,199 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:06:41,199 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 8, 8, 8, 8, 7, 7, 5, 5, 5, 3, 3, 3, 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] [2022-01-31 22:06:41,199 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-01-31 22:06:41,199 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:06:41,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:06:41,200 INFO L85 PathProgramCache]: Analyzing trace with hash 154707713, now seen corresponding path program 1 times [2022-01-31 22:06:41,200 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:06:41,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1336762167] [2022-01-31 22:06:41,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:06:41,312 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 22:06:41,426 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 22:06:41,859 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 8 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:06:41,905 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 22:06:41,940 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 5 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=3, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:06:41,980 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 22:06:41,996 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 4 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=2, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:06:42,085 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 22:06:42,086 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:06:42,127 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 22:06:42,523 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 8 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=8}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:06:42,632 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 22:06:42,690 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 22:06:42,690 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:06:42,744 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 22:06:43,159 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 22:06:43,267 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=7}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:06:43,375 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=7}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:06:43,399 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 4 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=2, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:06:43,439 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 5 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=3, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:06:43,492 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 22:06:43,492 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:06:43,492 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:06:43,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:06:43,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:06:43,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:06:43,631 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 22:06:44,235 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:06:44,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1336762167] [2022-01-31 22:06:44,235 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1336762167] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:06:44,235 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:06:44,236 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-31 22:06:44,236 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589701292] [2022-01-31 22:06:44,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:06:44,236 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-31 22:06:44,236 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:06:44,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-31 22:06:44,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=249, Invalid=563, Unknown=0, NotChecked=0, Total=812 [2022-01-31 22:06:44,237 INFO L87 Difference]: Start difference. First operand 13611 states and 19917 transitions. Second operand has 25 states, 25 states have (on average 3.92) internal successors, (98), 24 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:06:49,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:06:49,465 INFO L93 Difference]: Finished difference Result 22274 states and 32601 transitions. [2022-01-31 22:06:49,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-01-31 22:06:49,466 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.92) internal successors, (98), 24 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 180 [2022-01-31 22:06:49,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:06:49,484 INFO L225 Difference]: With dead ends: 22274 [2022-01-31 22:06:49,484 INFO L226 Difference]: Without dead ends: 15417 [2022-01-31 22:06:49,491 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 132 SyntacticMatches, 6 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 937 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=633, Invalid=1917, Unknown=0, NotChecked=0, Total=2550 [2022-01-31 22:06:49,492 INFO L933 BasicCegarLoop]: 128 mSDtfsCounter, 1322 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 1963 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1322 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 2033 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 1963 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-31 22:06:49,492 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1322 Valid, 160 Invalid, 2033 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 1963 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-31 22:06:49,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15417 states. [2022-01-31 22:06:52,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15417 to 13623. [2022-01-31 22:06:52,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13623 states, 13618 states have (on average 1.4633573211925393) internal successors, (19928), 13618 states have internal predecessors, (19928), 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 22:06:52,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13623 states to 13623 states and 19932 transitions. [2022-01-31 22:06:52,330 INFO L78 Accepts]: Start accepts. Automaton has 13623 states and 19932 transitions. Word has length 180 [2022-01-31 22:06:52,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:06:52,330 INFO L470 AbstractCegarLoop]: Abstraction has 13623 states and 19932 transitions. [2022-01-31 22:06:52,330 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.92) internal successors, (98), 24 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:06:52,330 INFO L276 IsEmpty]: Start isEmpty. Operand 13623 states and 19932 transitions. [2022-01-31 22:06:52,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2022-01-31 22:06:52,342 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:06:52,342 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 5, 5, 5, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:06:52,342 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-01-31 22:06:52,342 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:06:52,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:06:52,342 INFO L85 PathProgramCache]: Analyzing trace with hash 650700233, now seen corresponding path program 1 times [2022-01-31 22:06:52,342 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:06:52,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [860929267] [2022-01-31 22:06:52,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:06:52,458 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 22:06:52,529 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 22:06:52,530 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:06:52,530 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:06:52,590 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 22:06:52,629 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 5 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=3, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:06:52,678 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 22:06:52,701 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 4 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=2, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:06:52,788 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 22:06:52,788 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:06:52,850 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 22:06:52,912 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 22:06:52,979 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 22:06:53,109 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 22:06:53,109 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:06:53,172 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 22:06:53,243 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 22:06:53,372 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 22:06:53,441 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 22:06:53,469 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 4 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=2, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:06:53,515 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 5 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=3, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:06:53,573 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 22:06:53,573 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:06:53,573 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:06:53,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:06:53,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:06:53,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:06:53,688 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 22:06:53,860 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:06:53,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [860929267] [2022-01-31 22:06:53,860 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [860929267] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:06:53,861 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:06:53,861 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-01-31 22:06:53,861 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168944570] [2022-01-31 22:06:53,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:06:53,861 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-01-31 22:06:53,861 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:06:53,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-01-31 22:06:53,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=164, Unknown=0, NotChecked=0, Total=240 [2022-01-31 22:06:53,861 INFO L87 Difference]: Start difference. First operand 13623 states and 19932 transitions. Second operand has 13 states, 12 states have (on average 7.166666666666667) internal successors, (86), 11 states have internal predecessors, (86), 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 22:06:57,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:06:57,733 INFO L93 Difference]: Finished difference Result 25410 states and 37097 transitions. [2022-01-31 22:06:57,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-31 22:06:57,734 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 7.166666666666667) internal successors, (86), 11 states have internal predecessors, (86), 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 180 [2022-01-31 22:06:57,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:06:57,752 INFO L225 Difference]: With dead ends: 25410 [2022-01-31 22:06:57,752 INFO L226 Difference]: Without dead ends: 14259 [2022-01-31 22:06:57,765 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 154 SyntacticMatches, 2 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2022-01-31 22:06:57,766 INFO L933 BasicCegarLoop]: 118 mSDtfsCounter, 928 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 915 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 928 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 980 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 915 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-31 22:06:57,766 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [928 Valid, 150 Invalid, 980 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 915 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-31 22:06:57,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14259 states. [2022-01-31 22:07:00,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14259 to 13862. [2022-01-31 22:07:00,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13862 states, 13857 states have (on average 1.4622212600129898) internal successors, (20262), 13857 states have internal predecessors, (20262), 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 22:07:00,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13862 states to 13862 states and 20266 transitions. [2022-01-31 22:07:00,708 INFO L78 Accepts]: Start accepts. Automaton has 13862 states and 20266 transitions. Word has length 180 [2022-01-31 22:07:00,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:07:00,708 INFO L470 AbstractCegarLoop]: Abstraction has 13862 states and 20266 transitions. [2022-01-31 22:07:00,708 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 7.166666666666667) internal successors, (86), 11 states have internal predecessors, (86), 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 22:07:00,709 INFO L276 IsEmpty]: Start isEmpty. Operand 13862 states and 20266 transitions. [2022-01-31 22:07:00,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2022-01-31 22:07:00,722 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:07:00,722 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 8, 8, 8, 8, 7, 7, 5, 5, 5, 4, 4, 4, 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] [2022-01-31 22:07:00,722 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-01-31 22:07:00,722 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:07:00,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:07:00,723 INFO L85 PathProgramCache]: Analyzing trace with hash -25168315, now seen corresponding path program 2 times [2022-01-31 22:07:00,723 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:07:00,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [593942957] [2022-01-31 22:07:00,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:07:00,812 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 22:07:00,916 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:07:00,968 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 22:07:01,005 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 5 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=3, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:07:01,112 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 22:07:01,160 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 22:07:01,185 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 4 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=2, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:07:01,250 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 22:07:01,250 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:07:01,310 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 22:07:01,427 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 22:07:01,489 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 22:07:01,557 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 22:07:01,557 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:07:01,618 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 22:07:01,729 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 22:07:01,797 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 22:07:01,826 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 4 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=2, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:07:01,873 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 5 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=3, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:07:01,990 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 22:07:02,057 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 22:07:02,058 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:07:02,058 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:07:02,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:07:02,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:07:02,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:07:02,222 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 22:07:03,077 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:07:03,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [593942957] [2022-01-31 22:07:03,078 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [593942957] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:07:03,078 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:07:03,078 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [33] imperfect sequences [] total 33 [2022-01-31 22:07:03,078 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041720163] [2022-01-31 22:07:03,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:07:03,078 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-01-31 22:07:03,078 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:07:03,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-01-31 22:07:03,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=295, Invalid=965, Unknown=0, NotChecked=0, Total=1260 [2022-01-31 22:07:03,079 INFO L87 Difference]: Start difference. First operand 13862 states and 20266 transitions. Second operand has 33 states, 32 states have (on average 3.59375) internal successors, (115), 31 states have internal predecessors, (115), 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 22:07:09,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:07:09,577 INFO L93 Difference]: Finished difference Result 26467 states and 38660 transitions. [2022-01-31 22:07:09,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-31 22:07:09,578 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 3.59375) internal successors, (115), 31 states have internal predecessors, (115), 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 180 [2022-01-31 22:07:09,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:07:09,596 INFO L225 Difference]: With dead ends: 26467 [2022-01-31 22:07:09,596 INFO L226 Difference]: Without dead ends: 15322 [2022-01-31 22:07:09,612 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1331 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=841, Invalid=3449, Unknown=0, NotChecked=0, Total=4290 [2022-01-31 22:07:09,612 INFO L933 BasicCegarLoop]: 145 mSDtfsCounter, 1763 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 4117 mSolverCounterSat, 122 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1763 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 4239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 4117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-01-31 22:07:09,613 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1763 Valid, 187 Invalid, 4239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 4117 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-01-31 22:07:09,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15322 states. [2022-01-31 22:07:12,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15322 to 13200. [2022-01-31 22:07:12,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13200 states, 13195 states have (on average 1.4624478969306556) internal successors, (19297), 13195 states have internal predecessors, (19297), 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 22:07:12,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13200 states to 13200 states and 19301 transitions. [2022-01-31 22:07:12,644 INFO L78 Accepts]: Start accepts. Automaton has 13200 states and 19301 transitions. Word has length 180 [2022-01-31 22:07:12,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:07:12,644 INFO L470 AbstractCegarLoop]: Abstraction has 13200 states and 19301 transitions. [2022-01-31 22:07:12,644 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 32 states have (on average 3.59375) internal successors, (115), 31 states have internal predecessors, (115), 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 22:07:12,644 INFO L276 IsEmpty]: Start isEmpty. Operand 13200 states and 19301 transitions. [2022-01-31 22:07:12,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2022-01-31 22:07:12,657 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:07:12,657 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 8, 8, 8, 8, 7, 7, 5, 5, 5, 4, 4, 4, 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] [2022-01-31 22:07:12,657 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-01-31 22:07:12,657 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:07:12,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:07:12,657 INFO L85 PathProgramCache]: Analyzing trace with hash -181148857, now seen corresponding path program 1 times [2022-01-31 22:07:12,658 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:07:12,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1976910760] [2022-01-31 22:07:12,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:07:12,733 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 22:07:12,887 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:07:13,001 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 22:07:13,045 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 22:07:13,074 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 5 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=3, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:07:13,113 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 22:07:13,131 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 4 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=2, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:07:13,180 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 22:07:13,180 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:07:13,226 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 22:07:13,269 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 22:07:13,316 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 22:07:13,408 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 22:07:13,408 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:07:13,500 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 22:07:13,544 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 22:07:13,619 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 22:07:13,691 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 22:07:13,719 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 4 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=2, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:07:13,766 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 5 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=3, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:07:13,833 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 22:07:13,833 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:07:13,834 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:07:13,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:07:13,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:07:13,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:07:13,921 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 22:07:14,747 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:07:14,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1976910760] [2022-01-31 22:07:14,747 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1976910760] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:07:14,747 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:07:14,747 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-31 22:07:14,747 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397495534] [2022-01-31 22:07:14,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:07:14,748 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-31 22:07:14,748 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:07:14,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-31 22:07:14,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=242, Invalid=880, Unknown=0, NotChecked=0, Total=1122 [2022-01-31 22:07:14,748 INFO L87 Difference]: Start difference. First operand 13200 states and 19301 transitions. Second operand has 31 states, 30 states have (on average 3.8333333333333335) internal successors, (115), 29 states have internal predecessors, (115), 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 22:07:20,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:07:20,594 INFO L93 Difference]: Finished difference Result 18020 states and 26101 transitions. [2022-01-31 22:07:20,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-31 22:07:20,594 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 30 states have (on average 3.8333333333333335) internal successors, (115), 29 states have internal predecessors, (115), 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 180 [2022-01-31 22:07:20,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:07:20,616 INFO L225 Difference]: With dead ends: 18020 [2022-01-31 22:07:20,616 INFO L226 Difference]: Without dead ends: 14057 [2022-01-31 22:07:20,626 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1109 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=684, Invalid=3098, Unknown=0, NotChecked=0, Total=3782 [2022-01-31 22:07:20,627 INFO L933 BasicCegarLoop]: 147 mSDtfsCounter, 1590 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 4034 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1590 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 4092 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 4034 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-01-31 22:07:20,627 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1590 Valid, 199 Invalid, 4092 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 4034 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-01-31 22:07:20,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14057 states. [2022-01-31 22:07:23,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14057 to 13196. [2022-01-31 22:07:23,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13196 states, 13191 states have (on average 1.4625881282692745) internal successors, (19293), 13191 states have internal predecessors, (19293), 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 22:07:23,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13196 states to 13196 states and 19297 transitions. [2022-01-31 22:07:23,674 INFO L78 Accepts]: Start accepts. Automaton has 13196 states and 19297 transitions. Word has length 180 [2022-01-31 22:07:23,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:07:23,674 INFO L470 AbstractCegarLoop]: Abstraction has 13196 states and 19297 transitions. [2022-01-31 22:07:23,674 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 30 states have (on average 3.8333333333333335) internal successors, (115), 29 states have internal predecessors, (115), 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 22:07:23,674 INFO L276 IsEmpty]: Start isEmpty. Operand 13196 states and 19297 transitions. [2022-01-31 22:07:23,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2022-01-31 22:07:23,685 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:07:23,689 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 8, 8, 8, 7, 7, 5, 5, 5, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:07:23,689 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-01-31 22:07:23,689 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:07:23,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:07:23,690 INFO L85 PathProgramCache]: Analyzing trace with hash 1455997619, now seen corresponding path program 1 times [2022-01-31 22:07:23,690 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:07:23,690 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [279195387] [2022-01-31 22:07:23,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:07:24,098 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 8 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:07:24,203 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 22:07:24,317 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 22:07:24,402 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 22:07:24,451 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 5 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=3, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:07:24,512 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 22:07:24,541 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 4 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=2, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:07:24,611 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 22:07:24,611 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:07:24,672 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 22:07:24,734 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 22:07:24,801 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 22:07:24,930 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 22:07:24,930 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:07:24,993 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 22:07:25,061 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 22:07:25,191 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 22:07:25,260 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 22:07:25,289 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 4 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=2, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:07:25,336 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 5 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=3, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:07:25,394 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 22:07:25,394 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:07:25,394 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:07:25,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:07:25,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:07:25,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:07:25,459 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 22:07:26,039 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:07:26,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [279195387] [2022-01-31 22:07:26,040 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [279195387] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:07:26,040 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:07:26,040 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2022-01-31 22:07:26,040 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230727206] [2022-01-31 22:07:26,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:07:26,040 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-01-31 22:07:26,040 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:07:26,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-01-31 22:07:26,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=250, Invalid=562, Unknown=0, NotChecked=0, Total=812 [2022-01-31 22:07:26,041 INFO L87 Difference]: Start difference. First operand 13196 states and 19297 transitions. Second operand has 27 states, 27 states have (on average 3.6666666666666665) internal successors, (99), 26 states have internal predecessors, (99), 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 22:07:32,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:07:32,098 INFO L93 Difference]: Finished difference Result 20116 states and 29268 transitions. [2022-01-31 22:07:32,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-31 22:07:32,098 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 3.6666666666666665) internal successors, (99), 26 states have internal predecessors, (99), 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 180 [2022-01-31 22:07:32,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:07:32,124 INFO L225 Difference]: With dead ends: 20116 [2022-01-31 22:07:32,125 INFO L226 Difference]: Without dead ends: 16153 [2022-01-31 22:07:32,132 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 871 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=683, Invalid=2073, Unknown=0, NotChecked=0, Total=2756 [2022-01-31 22:07:32,135 INFO L933 BasicCegarLoop]: 141 mSDtfsCounter, 1246 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 2640 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1246 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 2704 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 2640 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-01-31 22:07:32,136 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1246 Valid, 178 Invalid, 2704 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 2640 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-01-31 22:07:32,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16153 states. [2022-01-31 22:07:35,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16153 to 13197. [2022-01-31 22:07:35,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13197 states, 13192 states have (on average 1.4626288659793814) internal successors, (19295), 13192 states have internal predecessors, (19295), 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 22:07:35,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13197 states to 13197 states and 19299 transitions. [2022-01-31 22:07:35,178 INFO L78 Accepts]: Start accepts. Automaton has 13197 states and 19299 transitions. Word has length 180 [2022-01-31 22:07:35,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:07:35,179 INFO L470 AbstractCegarLoop]: Abstraction has 13197 states and 19299 transitions. [2022-01-31 22:07:35,179 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 3.6666666666666665) internal successors, (99), 26 states have internal predecessors, (99), 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 22:07:35,179 INFO L276 IsEmpty]: Start isEmpty. Operand 13197 states and 19299 transitions. [2022-01-31 22:07:35,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2022-01-31 22:07:35,190 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:07:35,190 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 5, 5, 5, 3, 3, 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] [2022-01-31 22:07:35,191 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-01-31 22:07:35,191 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:07:35,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:07:35,191 INFO L85 PathProgramCache]: Analyzing trace with hash 823797357, now seen corresponding path program 1 times [2022-01-31 22:07:35,191 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:07:35,191 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2053082232] [2022-01-31 22:07:35,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:07:35,305 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 22:07:35,374 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 22:07:35,434 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 22:07:35,540 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:07:35,580 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 5 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=3, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:07:35,629 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 22:07:35,651 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 4 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=2, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:07:35,712 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 22:07:35,712 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:07:35,768 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 22:07:35,911 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 22:07:35,964 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 22:07:36,022 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 22:07:36,023 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:07:36,075 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 22:07:36,133 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 22:07:36,191 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 22:07:36,214 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 4 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=2, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:07:36,250 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 5 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=3, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:07:36,356 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 22:07:36,407 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 22:07:36,407 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:07:36,407 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:07:36,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:07:36,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:07:36,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:07:36,487 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 22:07:36,978 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:07:36,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2053082232] [2022-01-31 22:07:36,980 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [2053082232] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:07:36,980 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:07:36,980 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-31 22:07:36,980 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750315117] [2022-01-31 22:07:36,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:07:36,980 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-31 22:07:36,980 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:07:36,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-31 22:07:36,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=245, Invalid=511, Unknown=0, NotChecked=0, Total=756 [2022-01-31 22:07:36,981 INFO L87 Difference]: Start difference. First operand 13197 states and 19299 transitions. Second operand has 26 states, 26 states have (on average 3.8076923076923075) internal successors, (99), 25 states have internal predecessors, (99), 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 22:07:43,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:07:43,197 INFO L93 Difference]: Finished difference Result 20672 states and 30067 transitions. [2022-01-31 22:07:43,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-01-31 22:07:43,197 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.8076923076923075) internal successors, (99), 25 states have internal predecessors, (99), 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 180 [2022-01-31 22:07:43,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:07:43,216 INFO L225 Difference]: With dead ends: 20672 [2022-01-31 22:07:43,217 INFO L226 Difference]: Without dead ends: 16709 [2022-01-31 22:07:43,222 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 762 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=673, Invalid=1877, Unknown=0, NotChecked=0, Total=2550 [2022-01-31 22:07:43,223 INFO L933 BasicCegarLoop]: 156 mSDtfsCounter, 1466 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 2567 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1466 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 2651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 2567 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-31 22:07:43,223 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1466 Valid, 173 Invalid, 2651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 2567 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-31 22:07:43,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16709 states. [2022-01-31 22:07:46,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16709 to 13205. [2022-01-31 22:07:46,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13205 states, 13200 states have (on average 1.4625) internal successors, (19305), 13200 states have internal predecessors, (19305), 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 22:07:46,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13205 states to 13205 states and 19309 transitions. [2022-01-31 22:07:46,294 INFO L78 Accepts]: Start accepts. Automaton has 13205 states and 19309 transitions. Word has length 180 [2022-01-31 22:07:46,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:07:46,294 INFO L470 AbstractCegarLoop]: Abstraction has 13205 states and 19309 transitions. [2022-01-31 22:07:46,294 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 3.8076923076923075) internal successors, (99), 25 states have internal predecessors, (99), 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 22:07:46,294 INFO L276 IsEmpty]: Start isEmpty. Operand 13205 states and 19309 transitions. [2022-01-31 22:07:46,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-01-31 22:07:46,305 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:07:46,305 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 8, 8, 8, 8, 7, 7, 5, 5, 5, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:07:46,305 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-01-31 22:07:46,305 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:07:46,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:07:46,306 INFO L85 PathProgramCache]: Analyzing trace with hash 1931048652, now seen corresponding path program 1 times [2022-01-31 22:07:46,306 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:07:46,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1109631649] [2022-01-31 22:07:46,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:07:46,412 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 22:07:46,515 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 22:07:46,567 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 22:07:46,604 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 5 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=3, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:07:46,652 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 22:07:46,675 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 4 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=2, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:07:46,776 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 22:07:49,910 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 9 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=6, 2=1}, 1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:07:49,911 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:07:49,972 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 22:07:50,388 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 8 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=8}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:07:50,534 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 22:07:50,598 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 22:07:50,598 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:07:50,661 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 22:07:51,081 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 22:07:51,193 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 22:07:51,300 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 22:07:51,325 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 4 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=2, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:07:51,364 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 5 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=3, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:07:51,418 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 22:07:51,418 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:07:51,418 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:07:51,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:07:51,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:07:51,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:07:51,569 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 22:07:52,229 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:07:52,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1109631649] [2022-01-31 22:07:52,229 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1109631649] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:07:52,229 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:07:52,229 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2022-01-31 22:07:52,230 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338475817] [2022-01-31 22:07:52,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:07:52,230 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-01-31 22:07:52,230 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:07:52,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-01-31 22:07:52,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=289, Invalid=641, Unknown=0, NotChecked=0, Total=930 [2022-01-31 22:07:52,230 INFO L87 Difference]: Start difference. First operand 13205 states and 19309 transitions. Second operand has 27 states, 27 states have (on average 3.6666666666666665) internal successors, (99), 26 states have internal predecessors, (99), 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 22:07:58,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:07:58,447 INFO L93 Difference]: Finished difference Result 22281 states and 32586 transitions. [2022-01-31 22:07:58,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-31 22:07:58,448 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 3.6666666666666665) internal successors, (99), 26 states have internal predecessors, (99), 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 181 [2022-01-31 22:07:58,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:07:58,468 INFO L225 Difference]: With dead ends: 22281 [2022-01-31 22:07:58,468 INFO L226 Difference]: Without dead ends: 15759 [2022-01-31 22:07:58,479 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 133 SyntacticMatches, 6 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1128 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=741, Invalid=2229, Unknown=0, NotChecked=0, Total=2970 [2022-01-31 22:07:58,479 INFO L933 BasicCegarLoop]: 132 mSDtfsCounter, 1295 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 2568 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1295 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 2649 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 2568 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-01-31 22:07:58,479 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1295 Valid, 159 Invalid, 2649 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 2568 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-01-31 22:07:58,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15759 states. [2022-01-31 22:08:01,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15759 to 13189. [2022-01-31 22:08:01,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13189 states, 13184 states have (on average 1.4628337378640777) internal successors, (19286), 13184 states have internal predecessors, (19286), 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 22:08:01,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13189 states to 13189 states and 19290 transitions. [2022-01-31 22:08:01,733 INFO L78 Accepts]: Start accepts. Automaton has 13189 states and 19290 transitions. Word has length 181 [2022-01-31 22:08:01,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:08:01,734 INFO L470 AbstractCegarLoop]: Abstraction has 13189 states and 19290 transitions. [2022-01-31 22:08:01,734 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 3.6666666666666665) internal successors, (99), 26 states have internal predecessors, (99), 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 22:08:01,734 INFO L276 IsEmpty]: Start isEmpty. Operand 13189 states and 19290 transitions. [2022-01-31 22:08:01,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-01-31 22:08:01,747 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:08:01,747 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 8, 8, 8, 7, 7, 5, 5, 5, 3, 3, 3, 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] [2022-01-31 22:08:01,747 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-01-31 22:08:01,747 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:08:01,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:08:01,748 INFO L85 PathProgramCache]: Analyzing trace with hash -225369975, now seen corresponding path program 1 times [2022-01-31 22:08:01,748 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:08:01,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1532823769] [2022-01-31 22:08:01,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:08:01,868 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 22:08:01,984 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 22:08:02,045 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 22:08:02,090 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 5 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=3, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:08:02,146 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 22:08:02,176 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 4 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=2, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:08:02,579 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 8 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:08:02,580 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:08:02,580 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:08:02,580 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:08:02,634 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 22:08:02,635 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:08:02,635 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:08:02,635 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:08:02,635 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:08:02,694 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 22:08:02,694 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:08:02,750 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 22:08:03,209 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 22:08:03,319 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=7}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:08:03,427 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=7}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:08:03,451 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 4 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=2, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:08:03,490 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 5 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=3, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:08:03,582 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 22:08:03,582 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:08:03,582 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:08:03,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:08:03,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:08:03,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:08:03,631 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 22:08:04,115 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:08:04,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1532823769] [2022-01-31 22:08:04,115 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1532823769] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:08:04,115 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:08:04,115 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-01-31 22:08:04,115 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036137948] [2022-01-31 22:08:04,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:08:04,116 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-01-31 22:08:04,116 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:08:04,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-01-31 22:08:04,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=159, Invalid=441, Unknown=0, NotChecked=0, Total=600 [2022-01-31 22:08:04,116 INFO L87 Difference]: Start difference. First operand 13189 states and 19290 transitions. Second operand has 24 states, 24 states have (on average 4.125) internal successors, (99), 23 states have internal predecessors, (99), 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 22:08:09,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:08:09,756 INFO L93 Difference]: Finished difference Result 20806 states and 30375 transitions. [2022-01-31 22:08:09,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-31 22:08:09,757 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 4.125) internal successors, (99), 23 states have internal predecessors, (99), 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 181 [2022-01-31 22:08:09,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:08:09,780 INFO L225 Difference]: With dead ends: 20806 [2022-01-31 22:08:09,781 INFO L226 Difference]: Without dead ends: 14284 [2022-01-31 22:08:09,795 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 134 SyntacticMatches, 6 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 628 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=448, Invalid=1622, Unknown=0, NotChecked=0, Total=2070 [2022-01-31 22:08:09,796 INFO L933 BasicCegarLoop]: 144 mSDtfsCounter, 1120 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 2340 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1120 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 2366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 2340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-31 22:08:09,796 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1120 Valid, 176 Invalid, 2366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 2340 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-31 22:08:09,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14284 states. [2022-01-31 22:08:13,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14284 to 13205. [2022-01-31 22:08:13,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13205 states, 13200 states have (on average 1.4625) internal successors, (19305), 13200 states have internal predecessors, (19305), 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 22:08:13,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13205 states to 13205 states and 19309 transitions. [2022-01-31 22:08:13,091 INFO L78 Accepts]: Start accepts. Automaton has 13205 states and 19309 transitions. Word has length 181 [2022-01-31 22:08:13,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:08:13,091 INFO L470 AbstractCegarLoop]: Abstraction has 13205 states and 19309 transitions. [2022-01-31 22:08:13,091 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 4.125) internal successors, (99), 23 states have internal predecessors, (99), 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 22:08:13,091 INFO L276 IsEmpty]: Start isEmpty. Operand 13205 states and 19309 transitions. [2022-01-31 22:08:13,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-01-31 22:08:13,104 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:08:13,104 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 5, 5, 5, 5, 5, 5, 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] [2022-01-31 22:08:13,104 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-01-31 22:08:13,104 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:08:13,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:08:13,105 INFO L85 PathProgramCache]: Analyzing trace with hash -1661823197, now seen corresponding path program 1 times [2022-01-31 22:08:13,105 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:08:13,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2029755595] [2022-01-31 22:08:13,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:08:13,172 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 22:08:13,210 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 5 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=3, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:08:16,339 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 9 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:08:16,466 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 22:08:16,522 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 22:08:16,551 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 4 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=2, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:08:16,624 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 22:08:16,694 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 22:08:16,695 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:08:16,764 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 22:08:16,882 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 22:08:16,953 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 22:08:17,025 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 22:08:17,025 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:08:17,112 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 22:08:17,165 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 22:08:17,186 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 4 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=2, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:08:17,221 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 5 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=3, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:08:17,271 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 22:08:17,422 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 22:08:17,491 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 22:08:17,491 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:08:17,491 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:08:17,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:08:17,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:08:17,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:08:17,563 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 22:08:19,425 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:08:19,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2029755595] [2022-01-31 22:08:19,426 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [2029755595] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:08:19,426 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:08:19,426 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [40] imperfect sequences [] total 40 [2022-01-31 22:08:19,426 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684472113] [2022-01-31 22:08:19,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:08:19,426 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2022-01-31 22:08:19,426 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:08:19,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2022-01-31 22:08:19,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=223, Invalid=1417, Unknown=0, NotChecked=0, Total=1640 [2022-01-31 22:08:19,427 INFO L87 Difference]: Start difference. First operand 13205 states and 19309 transitions. Second operand has 40 states, 40 states have (on average 4.05) internal successors, (162), 39 states have internal predecessors, (162), 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 22:08:28,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:08:28,649 INFO L93 Difference]: Finished difference Result 20210 states and 29326 transitions. [2022-01-31 22:08:28,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-01-31 22:08:28,649 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 40 states have (on average 4.05) internal successors, (162), 39 states have internal predecessors, (162), 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 181 [2022-01-31 22:08:28,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:08:28,674 INFO L225 Difference]: With dead ends: 20210 [2022-01-31 22:08:28,674 INFO L226 Difference]: Without dead ends: 16247 [2022-01-31 22:08:28,685 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2017 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=633, Invalid=5373, Unknown=0, NotChecked=0, Total=6006 [2022-01-31 22:08:28,690 INFO L933 BasicCegarLoop]: 150 mSDtfsCounter, 1186 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 6394 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1186 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 6491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 6394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-01-31 22:08:28,691 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1186 Valid, 227 Invalid, 6491 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 6394 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-01-31 22:08:28,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16247 states. [2022-01-31 22:08:32,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16247 to 13870. [2022-01-31 22:08:32,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13870 states, 13865 states have (on average 1.4623873061666066) internal successors, (20276), 13865 states have internal predecessors, (20276), 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 22:08:32,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13870 states to 13870 states and 20280 transitions. [2022-01-31 22:08:32,353 INFO L78 Accepts]: Start accepts. Automaton has 13870 states and 20280 transitions. Word has length 181 [2022-01-31 22:08:32,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:08:32,354 INFO L470 AbstractCegarLoop]: Abstraction has 13870 states and 20280 transitions. [2022-01-31 22:08:32,354 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 4.05) internal successors, (162), 39 states have internal predecessors, (162), 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 22:08:32,354 INFO L276 IsEmpty]: Start isEmpty. Operand 13870 states and 20280 transitions. [2022-01-31 22:08:32,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-01-31 22:08:32,367 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:08:32,367 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 5, 5, 5, 5, 5, 5, 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] [2022-01-31 22:08:32,367 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-01-31 22:08:32,367 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:08:32,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:08:32,367 INFO L85 PathProgramCache]: Analyzing trace with hash -1235268699, now seen corresponding path program 1 times [2022-01-31 22:08:32,368 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:08:32,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1223252602] [2022-01-31 22:08:32,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:08:32,448 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 22:08:32,565 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 22:08:32,612 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 5 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=3, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:08:35,691 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 9 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:08:35,747 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 22:08:35,771 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 4 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=2, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:08:35,845 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 22:08:35,903 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 22:08:35,903 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:08:35,961 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 22:08:36,018 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 22:08:36,123 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 22:08:36,210 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 22:08:36,211 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:08:36,315 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 22:08:36,373 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 22:08:36,431 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 22:08:36,454 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 4 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=2, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:08:36,490 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 5 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=3, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:08:36,550 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 22:08:36,607 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 22:08:36,608 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:08:36,608 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:08:36,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:08:36,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:08:36,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:08:36,702 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 22:08:38,491 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:08:38,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1223252602] [2022-01-31 22:08:38,491 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1223252602] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:08:38,491 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:08:38,492 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [41] imperfect sequences [] total 41 [2022-01-31 22:08:38,492 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915547762] [2022-01-31 22:08:38,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:08:38,492 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2022-01-31 22:08:38,492 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:08:38,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2022-01-31 22:08:38,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=263, Invalid=1629, Unknown=0, NotChecked=0, Total=1892 [2022-01-31 22:08:38,493 INFO L87 Difference]: Start difference. First operand 13870 states and 20280 transitions. Second operand has 41 states, 40 states have (on average 4.05) internal successors, (162), 39 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 22:08:47,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:08:47,500 INFO L93 Difference]: Finished difference Result 22567 states and 32916 transitions. [2022-01-31 22:08:47,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-01-31 22:08:47,500 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 40 states have (on average 4.05) internal successors, (162), 39 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 181 [2022-01-31 22:08:47,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:08:47,522 INFO L225 Difference]: With dead ends: 22567 [2022-01-31 22:08:47,522 INFO L226 Difference]: Without dead ends: 17942 [2022-01-31 22:08:47,528 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2037 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=770, Invalid=5872, Unknown=0, NotChecked=0, Total=6642 [2022-01-31 22:08:47,529 INFO L933 BasicCegarLoop]: 153 mSDtfsCounter, 1386 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 8084 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1386 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 8161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 8084 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-01-31 22:08:47,529 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1386 Valid, 245 Invalid, 8161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 8084 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-01-31 22:08:47,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17942 states. [2022-01-31 22:08:51,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17942 to 13870. [2022-01-31 22:08:51,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13870 states, 13865 states have (on average 1.4623873061666066) internal successors, (20276), 13865 states have internal predecessors, (20276), 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 22:08:51,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13870 states to 13870 states and 20280 transitions. [2022-01-31 22:08:51,079 INFO L78 Accepts]: Start accepts. Automaton has 13870 states and 20280 transitions. Word has length 181 [2022-01-31 22:08:51,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:08:51,079 INFO L470 AbstractCegarLoop]: Abstraction has 13870 states and 20280 transitions. [2022-01-31 22:08:51,079 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 40 states have (on average 4.05) internal successors, (162), 39 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 22:08:51,080 INFO L276 IsEmpty]: Start isEmpty. Operand 13870 states and 20280 transitions. [2022-01-31 22:08:51,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-01-31 22:08:51,134 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:08:51,134 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 5, 5, 5, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:08:51,134 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-01-31 22:08:51,134 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:08:51,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:08:51,134 INFO L85 PathProgramCache]: Analyzing trace with hash -55672666, now seen corresponding path program 2 times [2022-01-31 22:08:51,134 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:08:51,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1033212041] [2022-01-31 22:08:51,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:08:51,202 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 22:08:51,253 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 22:08:51,366 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 22:08:51,413 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 5 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=3, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:08:51,468 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 22:08:51,496 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 4 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=2, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:09:23,743 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 10 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=6, 2=1}, 1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:09:23,803 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 22:09:23,803 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:09:23,921 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 22:09:23,921 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:09:23,987 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 22:09:24,041 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 22:09:24,099 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 22:09:24,214 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 22:09:24,214 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:09:24,268 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 22:09:24,326 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 22:09:24,395 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:09:24,510 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 22:09:24,567 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 22:09:24,590 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 4 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=2, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:09:24,649 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 5 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=3, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:09:24,649 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:09:24,649 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:09:24,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:09:24,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:09:24,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:09:24,802 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 22:09:25,766 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:09:25,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1033212041] [2022-01-31 22:09:25,766 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1033212041] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:09:25,766 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:09:25,766 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [33] imperfect sequences [] total 33 [2022-01-31 22:09:25,766 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844951793] [2022-01-31 22:09:25,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:09:25,766 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-01-31 22:09:25,766 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:09:25,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-01-31 22:09:25,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=328, Invalid=932, Unknown=0, NotChecked=0, Total=1260 [2022-01-31 22:09:25,767 INFO L87 Difference]: Start difference. First operand 13870 states and 20280 transitions. Second operand has 33 states, 33 states have (on average 3.515151515151515) internal successors, (116), 32 states have internal predecessors, (116), 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 22:09:32,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:09:32,981 INFO L93 Difference]: Finished difference Result 19793 states and 28748 transitions. [2022-01-31 22:09:32,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-31 22:09:32,982 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 3.515151515151515) internal successors, (116), 32 states have internal predecessors, (116), 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 181 [2022-01-31 22:09:32,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:09:33,000 INFO L225 Difference]: With dead ends: 19793 [2022-01-31 22:09:33,001 INFO L226 Difference]: Without dead ends: 15168 [2022-01-31 22:09:33,009 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1525 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=873, Invalid=3417, Unknown=0, NotChecked=0, Total=4290 [2022-01-31 22:09:33,009 INFO L933 BasicCegarLoop]: 136 mSDtfsCounter, 1422 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 4194 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1422 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 4291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 4194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-01-31 22:09:33,009 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1422 Valid, 148 Invalid, 4291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 4194 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-01-31 22:09:33,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15168 states. [2022-01-31 22:09:36,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15168 to 13919. [2022-01-31 22:09:36,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13919 states, 13914 states have (on average 1.4611182981170046) internal successors, (20330), 13914 states have internal predecessors, (20330), 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 22:09:36,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13919 states to 13919 states and 20334 transitions. [2022-01-31 22:09:36,668 INFO L78 Accepts]: Start accepts. Automaton has 13919 states and 20334 transitions. Word has length 181 [2022-01-31 22:09:36,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:09:36,669 INFO L470 AbstractCegarLoop]: Abstraction has 13919 states and 20334 transitions. [2022-01-31 22:09:36,669 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 3.515151515151515) internal successors, (116), 32 states have internal predecessors, (116), 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 22:09:36,669 INFO L276 IsEmpty]: Start isEmpty. Operand 13919 states and 20334 transitions. [2022-01-31 22:09:36,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-01-31 22:09:36,682 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:09:36,682 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 5, 5, 5, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:09:36,682 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-01-31 22:09:36,682 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:09:36,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:09:36,682 INFO L85 PathProgramCache]: Analyzing trace with hash -596102172, now seen corresponding path program 1 times [2022-01-31 22:09:36,682 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:09:36,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2110613362] [2022-01-31 22:09:36,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:09:36,750 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 22:09:36,865 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 22:09:36,918 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 22:09:36,955 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 5 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=3, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:09:37,004 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 22:09:37,027 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 4 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=2, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:10:09,305 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 10 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=6, 2=1}, 1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:10:09,371 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 22:10:09,371 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:10:09,489 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:10:09,489 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:10:09,557 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 22:10:09,673 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:10:09,728 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 22:10:09,788 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 22:10:09,788 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:10:09,844 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 22:10:09,903 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 22:10:09,972 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 22:10:10,096 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:10:10,159 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 22:10:10,183 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 4 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=2, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:10:10,244 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 5 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=3, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:10:10,244 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:10:10,244 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:10:10,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:10,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:10:10,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:10,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:10:11,297 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:10:11,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2110613362] [2022-01-31 22:10:11,297 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [2110613362] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:10:11,297 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:10:11,298 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [] total 32 [2022-01-31 22:10:11,298 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523668587] [2022-01-31 22:10:11,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:10:11,298 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-01-31 22:10:11,298 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:10:11,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-01-31 22:10:11,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=237, Invalid=953, Unknown=0, NotChecked=0, Total=1190 [2022-01-31 22:10:11,299 INFO L87 Difference]: Start difference. First operand 13919 states and 20334 transitions. Second operand has 32 states, 31 states have (on average 3.7419354838709675) internal successors, (116), 30 states have internal predecessors, (116), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:18,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:10:18,936 INFO L93 Difference]: Finished difference Result 22498 states and 32835 transitions. [2022-01-31 22:10:18,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-31 22:10:18,936 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 3.7419354838709675) internal successors, (116), 30 states have internal predecessors, (116), 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 181 [2022-01-31 22:10:18,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:10:18,956 INFO L225 Difference]: With dead ends: 22498 [2022-01-31 22:10:18,956 INFO L226 Difference]: Without dead ends: 17873 [2022-01-31 22:10:18,962 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1241 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=666, Invalid=3366, Unknown=0, NotChecked=0, Total=4032 [2022-01-31 22:10:18,963 INFO L933 BasicCegarLoop]: 141 mSDtfsCounter, 1483 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 4410 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1483 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 4475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 4410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-01-31 22:10:18,963 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1483 Valid, 183 Invalid, 4475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 4410 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-01-31 22:10:18,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17873 states. [2022-01-31 22:10:22,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17873 to 13934. [2022-01-31 22:10:22,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13934 states, 13929 states have (on average 1.4606935171225501) internal successors, (20346), 13929 states have internal predecessors, (20346), 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 22:10:22,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13934 states to 13934 states and 20350 transitions. [2022-01-31 22:10:22,717 INFO L78 Accepts]: Start accepts. Automaton has 13934 states and 20350 transitions. Word has length 181 [2022-01-31 22:10:22,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:10:22,717 INFO L470 AbstractCegarLoop]: Abstraction has 13934 states and 20350 transitions. [2022-01-31 22:10:22,717 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 3.7419354838709675) internal successors, (116), 30 states have internal predecessors, (116), 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 22:10:22,717 INFO L276 IsEmpty]: Start isEmpty. Operand 13934 states and 20350 transitions. [2022-01-31 22:10:22,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-01-31 22:10:22,730 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:10:22,730 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 8, 8, 8, 7, 7, 5, 5, 5, 4, 4, 4, 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] [2022-01-31 22:10:22,730 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-01-31 22:10:22,730 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:10:22,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:10:22,730 INFO L85 PathProgramCache]: Analyzing trace with hash -229291763, now seen corresponding path program 2 times [2022-01-31 22:10:22,731 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:10:22,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2017745857] [2022-01-31 22:10:22,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:10:22,798 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 22:10:22,938 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:10:22,999 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 22:10:23,046 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 5 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=3, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:10:23,163 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 22:10:23,221 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 22:10:23,250 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 4 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=2, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:10:23,322 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 22:10:23,323 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:10:23,393 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 22:10:23,510 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 22:10:23,573 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 22:10:23,642 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 22:10:23,642 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:10:23,704 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 22:10:23,771 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 22:10:23,840 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 22:10:23,870 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 4 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=2, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:10:23,909 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 5 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=3, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:10:24,018 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 22:10:24,080 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 22:10:24,080 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:10:24,080 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:10:24,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:24,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:10:24,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:24,205 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 22:10:25,084 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:10:25,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2017745857] [2022-01-31 22:10:25,085 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [2017745857] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:10:25,085 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:10:25,085 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2022-01-31 22:10:25,085 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703103729] [2022-01-31 22:10:25,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:10:25,085 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-01-31 22:10:25,085 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:10:25,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-01-31 22:10:25,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=282, Invalid=978, Unknown=0, NotChecked=0, Total=1260 [2022-01-31 22:10:25,086 INFO L87 Difference]: Start difference. First operand 13934 states and 20350 transitions. Second operand has 34 states, 33 states have (on average 3.515151515151515) internal successors, (116), 32 states have internal predecessors, (116), 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 22:10:33,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:10:33,532 INFO L93 Difference]: Finished difference Result 31116 states and 45089 transitions. [2022-01-31 22:10:33,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-01-31 22:10:33,533 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 3.515151515151515) internal successors, (116), 32 states have internal predecessors, (116), 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 181 [2022-01-31 22:10:33,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:10:33,557 INFO L225 Difference]: With dead ends: 31116 [2022-01-31 22:10:33,557 INFO L226 Difference]: Without dead ends: 17986 [2022-01-31 22:10:33,577 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1362 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=835, Invalid=3587, Unknown=0, NotChecked=0, Total=4422 [2022-01-31 22:10:33,577 INFO L933 BasicCegarLoop]: 151 mSDtfsCounter, 1528 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 3696 mSolverCounterSat, 129 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1528 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 3825 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 129 IncrementalHoareTripleChecker+Valid, 3696 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-01-31 22:10:33,577 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1528 Valid, 213 Invalid, 3825 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [129 Valid, 3696 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-01-31 22:10:33,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17986 states. [2022-01-31 22:10:37,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17986 to 12879. [2022-01-31 22:10:37,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12879 states, 12874 states have (on average 1.4605406245145254) internal successors, (18803), 12874 states have internal predecessors, (18803), 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 22:10:37,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12879 states to 12879 states and 18807 transitions. [2022-01-31 22:10:37,694 INFO L78 Accepts]: Start accepts. Automaton has 12879 states and 18807 transitions. Word has length 181 [2022-01-31 22:10:37,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:10:37,694 INFO L470 AbstractCegarLoop]: Abstraction has 12879 states and 18807 transitions. [2022-01-31 22:10:37,694 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 3.515151515151515) internal successors, (116), 32 states have internal predecessors, (116), 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 22:10:37,694 INFO L276 IsEmpty]: Start isEmpty. Operand 12879 states and 18807 transitions. [2022-01-31 22:10:37,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-01-31 22:10:37,705 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:10:37,706 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 8, 8, 8, 7, 7, 5, 5, 5, 4, 4, 4, 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] [2022-01-31 22:10:37,706 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-01-31 22:10:37,706 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:10:37,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:10:37,706 INFO L85 PathProgramCache]: Analyzing trace with hash -385272305, now seen corresponding path program 1 times [2022-01-31 22:10:37,706 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:10:37,706 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [837548269] [2022-01-31 22:10:37,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:10:37,782 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 22:10:37,899 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:10:38,014 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 22:10:38,069 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 22:10:38,106 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 5 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=3, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:10:38,155 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 22:10:38,195 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 4 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=2, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:10:38,257 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 22:10:38,258 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:10:38,326 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 22:10:38,392 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 22:10:38,461 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 22:10:38,625 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 22:10:38,625 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:10:38,777 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 22:10:38,844 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 22:10:38,914 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 22:10:38,983 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 22:10:39,013 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 4 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=2, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:10:39,060 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 5 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=3, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:10:39,129 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 22:10:39,131 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:10:39,131 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:10:39,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:39,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:10:39,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:39,235 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 22:10:40,041 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:10:40,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [837548269] [2022-01-31 22:10:40,042 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [837548269] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:10:40,042 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:10:40,042 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-01-31 22:10:40,042 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879506317] [2022-01-31 22:10:40,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:10:40,042 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-01-31 22:10:40,042 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:10:40,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-01-31 22:10:40,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=234, Invalid=758, Unknown=0, NotChecked=0, Total=992 [2022-01-31 22:10:40,043 INFO L87 Difference]: Start difference. First operand 12879 states and 18807 transitions. Second operand has 30 states, 30 states have (on average 3.8666666666666667) internal successors, (116), 29 states have internal predecessors, (116), 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)