/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf -i ../../../trunk/examples/svcomp/openssl-simplified/s3_srvr_1.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-d966a43 [2022-01-31 22:00:13,387 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-31 22:00:13,388 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-31 22:00:13,454 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-31 22:00:13,466 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-31 22:00:13,466 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-31 22:00:13,467 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-31 22:00:13,468 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-31 22:00:13,468 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-31 22:00:13,469 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-31 22:00:13,470 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-31 22:00:13,471 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-31 22:00:13,471 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-31 22:00:13,476 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-31 22:00:13,479 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-31 22:00:13,480 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-31 22:00:13,486 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-31 22:00:13,491 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-31 22:00:13,491 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-31 22:00:13,492 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-31 22:00:13,494 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf [2022-01-31 22:00:13,505 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-31 22:00:13,505 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-31 22:00:13,506 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-31 22:00:13,506 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-31 22:00:13,506 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-31 22:00:13,506 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-31 22:00:13,507 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-31 22:00:13,507 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-31 22:00:13,507 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-31 22:00:13,507 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-31 22:00:13,507 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-31 22:00:13,508 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-31 22:00:13,508 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-31 22:00:13,508 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-31 22:00:13,508 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-31 22:00:13,508 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-31 22:00:13,508 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-31 22:00:13,508 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-31 22:00:13,508 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 22:00:13,508 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-31 22:00:13,508 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2022-01-31 22:00:13,508 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-31 22:00:13,509 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2022-01-31 22:00:13,509 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-31 22:00:13,711 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-31 22:00:13,738 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-31 22:00:13,740 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-31 22:00:13,741 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-31 22:00:13,742 INFO L275 PluginConnector]: CDTParser initialized [2022-01-31 22:00:13,743 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl-simplified/s3_srvr_1.cil-1.c [2022-01-31 22:00:13,786 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/70a4e4a5a/397c2ae5b029458bba0f11c49a700af7/FLAG854ea7809 [2022-01-31 22:00:14,112 INFO L306 CDTParser]: Found 1 translation units. [2022-01-31 22:00:14,112 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl-simplified/s3_srvr_1.cil-1.c [2022-01-31 22:00:14,119 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/70a4e4a5a/397c2ae5b029458bba0f11c49a700af7/FLAG854ea7809 [2022-01-31 22:00:14,544 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/70a4e4a5a/397c2ae5b029458bba0f11c49a700af7 [2022-01-31 22:00:14,546 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-31 22:00:14,548 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-01-31 22:00:14,551 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-31 22:00:14,552 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-31 22:00:14,554 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-31 22:00:14,554 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 10:00:14" (1/1) ... [2022-01-31 22:00:14,555 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52341dcc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:00:14, skipping insertion in model container [2022-01-31 22:00:14,555 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 10:00:14" (1/1) ... [2022-01-31 22:00:14,561 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-31 22:00:14,600 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-31 22:00:14,800 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/openssl-simplified/s3_srvr_1.cil-1.c[43309,43322] [2022-01-31 22:00:14,808 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 22:00:14,814 INFO L203 MainTranslator]: Completed pre-run [2022-01-31 22:00:14,847 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/openssl-simplified/s3_srvr_1.cil-1.c[43309,43322] [2022-01-31 22:00:14,849 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 22:00:14,857 INFO L208 MainTranslator]: Completed translation [2022-01-31 22:00:14,857 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:00:14 WrapperNode [2022-01-31 22:00:14,857 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-31 22:00:14,858 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-31 22:00:14,858 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-31 22:00:14,858 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-31 22:00:14,867 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:00:14" (1/1) ... [2022-01-31 22:00:14,867 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:00:14" (1/1) ... [2022-01-31 22:00:14,873 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:00:14" (1/1) ... [2022-01-31 22:00:14,873 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:00:14" (1/1) ... [2022-01-31 22:00:14,880 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:00:14" (1/1) ... [2022-01-31 22:00:14,898 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:00:14" (1/1) ... [2022-01-31 22:00:14,899 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:00:14" (1/1) ... [2022-01-31 22:00:14,902 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-31 22:00:14,902 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-31 22:00:14,902 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-31 22:00:14,902 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-31 22:00:14,903 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:00:14" (1/1) ... [2022-01-31 22:00:14,909 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 22:00:14,917 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 22:00:14,925 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-31 22:00:14,941 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-31 22:00:14,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-01-31 22:00:14,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-31 22:00:14,962 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-01-31 22:00:14,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-01-31 22:00:14,963 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-01-31 22:00:14,963 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-01-31 22:00:14,963 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-01-31 22:00:14,963 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-01-31 22:00:14,964 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-31 22:00:14,964 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-01-31 22:00:14,964 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-01-31 22:00:14,964 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-01-31 22:00:14,965 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-01-31 22:00:14,965 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-01-31 22:00:14,966 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-01-31 22:00:14,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-31 22:00:14,968 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-31 22:00:14,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-31 22:00:14,968 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-31 22:00:14,968 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-31 22:00:15,025 INFO L234 CfgBuilder]: Building ICFG [2022-01-31 22:00:15,026 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-31 22:00:15,073 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-31 22:00:15,398 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2022-01-31 22:00:15,398 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2022-01-31 22:00:15,402 INFO L275 CfgBuilder]: Performing block encoding [2022-01-31 22:00:15,409 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-31 22:00:15,409 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-31 22:00:15,411 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 10:00:15 BoogieIcfgContainer [2022-01-31 22:00:15,411 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-31 22:00:15,412 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-31 22:00:15,412 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-31 22:00:15,415 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-31 22:00:15,415 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 10:00:14" (1/3) ... [2022-01-31 22:00:15,416 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@166fd6ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 10:00:15, skipping insertion in model container [2022-01-31 22:00:15,416 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:00:14" (2/3) ... [2022-01-31 22:00:15,416 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@166fd6ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 10:00:15, skipping insertion in model container [2022-01-31 22:00:15,416 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 10:00:15" (3/3) ... [2022-01-31 22:00:15,417 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr_1.cil-1.c [2022-01-31 22:00:15,421 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-01-31 22:00:15,421 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-31 22:00:15,458 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-31 22:00:15,464 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=AcceleratedInterpolation, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=JORDAN [2022-01-31 22:00:15,464 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-31 22:00:15,483 INFO L276 IsEmpty]: Start isEmpty. Operand has 152 states, 144 states have (on average 1.7013888888888888) internal successors, (245), 145 states have internal predecessors, (245), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-01-31 22:00:15,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-01-31 22:00:15,498 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:00:15,499 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:00:15,499 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:00:15,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:00:15,504 INFO L85 PathProgramCache]: Analyzing trace with hash 1979865033, now seen corresponding path program 1 times [2022-01-31 22:00:15,510 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:00:15,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [273175169] [2022-01-31 22:00:15,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:00:15,521 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:00:15,557 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:00:15,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:00:15,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:00:15,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:00:15,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:00:15,789 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:00:15,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [273175169] [2022-01-31 22:00:15,790 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [273175169] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:00:15,790 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:00:15,791 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 22:00:15,791 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607396630] [2022-01-31 22:00:15,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:00:15,794 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 22:00:15,794 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:00:15,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 22:00:15,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 22:00:15,822 INFO L87 Difference]: Start difference. First operand has 152 states, 144 states have (on average 1.7013888888888888) internal successors, (245), 145 states have internal predecessors, (245), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:00:16,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:00:16,151 INFO L93 Difference]: Finished difference Result 420 states and 707 transitions. [2022-01-31 22:00:16,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 22:00:16,153 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 51 [2022-01-31 22:00:16,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:00:16,160 INFO L225 Difference]: With dead ends: 420 [2022-01-31 22:00:16,160 INFO L226 Difference]: Without dead ends: 255 [2022-01-31 22:00:16,163 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:00:16,165 INFO L933 BasicCegarLoop]: 241 mSDtfsCounter, 637 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 639 SdHoareTripleChecker+Valid, 250 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 22:00:16,166 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [639 Valid, 250 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-31 22:00:16,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2022-01-31 22:00:16,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 255. [2022-01-31 22:00:16,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 250 states have (on average 1.52) internal successors, (380), 250 states have internal predecessors, (380), 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 22:00:16,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 384 transitions. [2022-01-31 22:00:16,232 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 384 transitions. Word has length 51 [2022-01-31 22:00:16,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:00:16,233 INFO L470 AbstractCegarLoop]: Abstraction has 255 states and 384 transitions. [2022-01-31 22:00:16,233 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:00:16,233 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 384 transitions. [2022-01-31 22:00:16,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-01-31 22:00:16,243 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:00:16,243 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:00:16,243 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-31 22:00:16,244 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:00:16,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:00:16,245 INFO L85 PathProgramCache]: Analyzing trace with hash 1218319566, now seen corresponding path program 1 times [2022-01-31 22:00:16,245 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:00:16,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [212670990] [2022-01-31 22:00:16,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:00:16,944 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 22:00:16,946 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2022-01-31 22:00:16,946 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:00:16,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:00:17,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:00:17,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:00:17,052 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 22:00:17,741 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:00:17,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [212670990] [2022-01-31 22:00:17,741 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [212670990] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:00:17,742 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:00:17,742 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-01-31 22:00:17,742 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932205268] [2022-01-31 22:00:17,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:00:17,744 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-31 22:00:17,744 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:00:17,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-31 22:00:17,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=202, Unknown=0, NotChecked=0, Total=272 [2022-01-31 22:00:17,746 INFO L87 Difference]: Start difference. First operand 255 states and 384 transitions. Second operand has 17 states, 16 states have (on average 3.9375) internal successors, (63), 15 states have internal predecessors, (63), 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 22:00:18,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:00:18,414 INFO L93 Difference]: Finished difference Result 592 states and 919 transitions. [2022-01-31 22:00:18,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-31 22:00:18,414 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 3.9375) internal successors, (63), 15 states have internal predecessors, (63), 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 67 [2022-01-31 22:00:18,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:00:18,416 INFO L225 Difference]: With dead ends: 592 [2022-01-31 22:00:18,416 INFO L226 Difference]: Without dead ends: 339 [2022-01-31 22:00:18,417 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 12 SyntacticMatches, 6 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=219, Invalid=651, Unknown=0, NotChecked=0, Total=870 [2022-01-31 22:00:18,418 INFO L933 BasicCegarLoop]: 178 mSDtfsCounter, 592 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 637 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 592 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 1286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 637 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 585 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-31 22:00:18,419 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [592 Valid, 215 Invalid, 1286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 637 Invalid, 0 Unknown, 585 Unchecked, 0.4s Time] [2022-01-31 22:00:18,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2022-01-31 22:00:18,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 326. [2022-01-31 22:00:18,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 326 states, 321 states have (on average 1.4454828660436136) internal successors, (464), 321 states have internal predecessors, (464), 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 22:00:18,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 468 transitions. [2022-01-31 22:00:18,460 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 468 transitions. Word has length 67 [2022-01-31 22:00:18,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:00:18,461 INFO L470 AbstractCegarLoop]: Abstraction has 326 states and 468 transitions. [2022-01-31 22:00:18,461 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 3.9375) internal successors, (63), 15 states have internal predecessors, (63), 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 22:00:18,461 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 468 transitions. [2022-01-31 22:00:18,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-01-31 22:00:18,462 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:00:18,462 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:00:18,462 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-31 22:00:18,462 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:00:18,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:00:18,463 INFO L85 PathProgramCache]: Analyzing trace with hash -1802002652, now seen corresponding path program 1 times [2022-01-31 22:00:18,463 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:00:18,463 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [725898364] [2022-01-31 22:00:18,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:00:18,892 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 22:00:18,892 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2022-01-31 22:00:18,892 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:00:18,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:00:18,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:00:18,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:00:18,958 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 22:00:19,486 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:00:19,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [725898364] [2022-01-31 22:00:19,486 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [725898364] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:00:19,486 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:00:19,486 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-01-31 22:00:19,486 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516364568] [2022-01-31 22:00:19,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:00:19,487 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-31 22:00:19,487 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:00:19,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-31 22:00:19,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=202, Unknown=0, NotChecked=0, Total=272 [2022-01-31 22:00:19,488 INFO L87 Difference]: Start difference. First operand 326 states and 468 transitions. Second operand has 17 states, 16 states have (on average 4.0) internal successors, (64), 15 states have internal predecessors, (64), 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 22:00:20,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:00:20,176 INFO L93 Difference]: Finished difference Result 793 states and 1199 transitions. [2022-01-31 22:00:20,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-31 22:00:20,176 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 4.0) internal successors, (64), 15 states have internal predecessors, (64), 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 68 [2022-01-31 22:00:20,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:00:20,180 INFO L225 Difference]: With dead ends: 793 [2022-01-31 22:00:20,180 INFO L226 Difference]: Without dead ends: 505 [2022-01-31 22:00:20,182 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 10 SyntacticMatches, 6 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=219, Invalid=651, Unknown=0, NotChecked=0, Total=870 [2022-01-31 22:00:20,185 INFO L933 BasicCegarLoop]: 182 mSDtfsCounter, 1098 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 862 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1098 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 1153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 862 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 204 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-31 22:00:20,186 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1098 Valid, 204 Invalid, 1153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 862 Invalid, 0 Unknown, 204 Unchecked, 0.4s Time] [2022-01-31 22:00:20,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2022-01-31 22:00:20,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 359. [2022-01-31 22:00:20,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 359 states, 354 states have (on average 1.4491525423728813) internal successors, (513), 354 states have internal predecessors, (513), 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 22:00:20,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 517 transitions. [2022-01-31 22:00:20,215 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 517 transitions. Word has length 68 [2022-01-31 22:00:20,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:00:20,216 INFO L470 AbstractCegarLoop]: Abstraction has 359 states and 517 transitions. [2022-01-31 22:00:20,216 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 4.0) internal successors, (64), 15 states have internal predecessors, (64), 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 22:00:20,216 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 517 transitions. [2022-01-31 22:00:20,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-01-31 22:00:20,217 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:00:20,217 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:00:20,218 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-31 22:00:20,218 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:00:20,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:00:20,218 INFO L85 PathProgramCache]: Analyzing trace with hash 2142422128, now seen corresponding path program 1 times [2022-01-31 22:00:20,218 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:00:20,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [667641134] [2022-01-31 22:00:20,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:00:20,288 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:00:20,706 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 22:00:20,707 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:00:20,771 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 22:00:20,771 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:00:20,771 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:00:20,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:00:20,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:00:20,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:00:20,867 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 22:00:21,239 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:00:21,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [667641134] [2022-01-31 22:00:21,239 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [667641134] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:00:21,239 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:00:21,239 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-01-31 22:00:21,239 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682921881] [2022-01-31 22:00:21,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:00:21,241 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-01-31 22:00:21,241 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:00:21,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-01-31 22:00:21,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=341, Unknown=0, NotChecked=0, Total=420 [2022-01-31 22:00:21,241 INFO L87 Difference]: Start difference. First operand 359 states and 517 transitions. Second operand has 21 states, 20 states have (on average 4.2) internal successors, (84), 19 states have internal predecessors, (84), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:00:22,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:00:22,488 INFO L93 Difference]: Finished difference Result 819 states and 1160 transitions. [2022-01-31 22:00:22,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-31 22:00:22,489 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 4.2) internal successors, (84), 19 states have internal predecessors, (84), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 88 [2022-01-31 22:00:22,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:00:22,490 INFO L225 Difference]: With dead ends: 819 [2022-01-31 22:00:22,490 INFO L226 Difference]: Without dead ends: 492 [2022-01-31 22:00:22,492 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 343 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=263, Invalid=1219, Unknown=0, NotChecked=0, Total=1482 [2022-01-31 22:00:22,492 INFO L933 BasicCegarLoop]: 197 mSDtfsCounter, 939 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 2016 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 939 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 2082 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 2016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-31 22:00:22,492 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [939 Valid, 239 Invalid, 2082 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 2016 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-31 22:00:22,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2022-01-31 22:00:22,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 387. [2022-01-31 22:00:22,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 382 states have (on average 1.4293193717277486) internal successors, (546), 382 states have internal predecessors, (546), 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 22:00:22,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 550 transitions. [2022-01-31 22:00:22,511 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 550 transitions. Word has length 88 [2022-01-31 22:00:22,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:00:22,511 INFO L470 AbstractCegarLoop]: Abstraction has 387 states and 550 transitions. [2022-01-31 22:00:22,511 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 4.2) internal successors, (84), 19 states have internal predecessors, (84), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:00:22,511 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 550 transitions. [2022-01-31 22:00:22,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-01-31 22:00:22,512 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:00:22,512 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:00:22,512 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-31 22:00:22,513 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:00:22,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:00:22,513 INFO L85 PathProgramCache]: Analyzing trace with hash -1255151890, now seen corresponding path program 1 times [2022-01-31 22:00:22,513 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:00:22,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1716968555] [2022-01-31 22:00:22,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:00:22,625 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:00:23,076 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 22:00:23,077 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:00:23,139 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:00:23,139 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:00:23,140 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:00:23,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:00:23,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:00:23,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:00:23,191 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 22:00:23,521 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:00:23,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1716968555] [2022-01-31 22:00:23,521 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1716968555] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:00:23,521 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:00:23,521 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-01-31 22:00:23,521 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963011042] [2022-01-31 22:00:23,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:00:23,522 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-01-31 22:00:23,522 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:00:23,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-01-31 22:00:23,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=341, Unknown=0, NotChecked=0, Total=420 [2022-01-31 22:00:23,523 INFO L87 Difference]: Start difference. First operand 387 states and 550 transitions. Second operand has 21 states, 20 states have (on average 4.2) internal successors, (84), 19 states have internal predecessors, (84), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:00:25,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:00:25,073 INFO L93 Difference]: Finished difference Result 685 states and 952 transitions. [2022-01-31 22:00:25,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-31 22:00:25,076 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 4.2) internal successors, (84), 19 states have internal predecessors, (84), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 88 [2022-01-31 22:00:25,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:00:25,079 INFO L225 Difference]: With dead ends: 685 [2022-01-31 22:00:25,079 INFO L226 Difference]: Without dead ends: 451 [2022-01-31 22:00:25,080 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 343 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=263, Invalid=1219, Unknown=0, NotChecked=0, Total=1482 [2022-01-31 22:00:25,080 INFO L933 BasicCegarLoop]: 197 mSDtfsCounter, 859 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 3036 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 859 SdHoareTripleChecker+Valid, 269 SdHoareTripleChecker+Invalid, 3080 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 3036 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-01-31 22:00:25,080 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [859 Valid, 269 Invalid, 3080 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 3036 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-01-31 22:00:25,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2022-01-31 22:00:25,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 368. [2022-01-31 22:00:25,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368 states, 363 states have (on average 1.4490358126721763) internal successors, (526), 363 states have internal predecessors, (526), 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 22:00:25,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 530 transitions. [2022-01-31 22:00:25,096 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 530 transitions. Word has length 88 [2022-01-31 22:00:25,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:00:25,096 INFO L470 AbstractCegarLoop]: Abstraction has 368 states and 530 transitions. [2022-01-31 22:00:25,096 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 4.2) internal successors, (84), 19 states have internal predecessors, (84), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:00:25,096 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 530 transitions. [2022-01-31 22:00:25,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-01-31 22:00:25,097 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:00:25,097 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:00:25,097 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-31 22:00:25,097 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:00:25,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:00:25,098 INFO L85 PathProgramCache]: Analyzing trace with hash -235882507, now seen corresponding path program 1 times [2022-01-31 22:00:25,098 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:00:25,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1740305319] [2022-01-31 22:00:25,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:00:25,183 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:00:25,607 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 22:00:25,607 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:00:25,665 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:00:25,665 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:00:25,665 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:00:25,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:00:25,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:00:25,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:00:25,770 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 22:00:26,164 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:00:26,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1740305319] [2022-01-31 22:00:26,165 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1740305319] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:00:26,165 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:00:26,165 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-31 22:00:26,165 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229860871] [2022-01-31 22:00:26,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:00:26,165 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-31 22:00:26,165 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:00:26,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-31 22:00:26,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=378, Unknown=0, NotChecked=0, Total=462 [2022-01-31 22:00:26,166 INFO L87 Difference]: Start difference. First operand 368 states and 530 transitions. Second operand has 22 states, 21 states have (on average 4.0476190476190474) internal successors, (85), 20 states have internal predecessors, (85), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:00:27,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:00:27,419 INFO L93 Difference]: Finished difference Result 669 states and 944 transitions. [2022-01-31 22:00:27,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-31 22:00:27,420 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 4.0476190476190474) internal successors, (85), 20 states have internal predecessors, (85), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 89 [2022-01-31 22:00:27,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:00:27,422 INFO L225 Difference]: With dead ends: 669 [2022-01-31 22:00:27,422 INFO L226 Difference]: Without dead ends: 477 [2022-01-31 22:00:27,423 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 394 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=280, Invalid=1360, Unknown=0, NotChecked=0, Total=1640 [2022-01-31 22:00:27,425 INFO L933 BasicCegarLoop]: 201 mSDtfsCounter, 929 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 1885 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 929 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 1952 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 1885 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-31 22:00:27,426 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [929 Valid, 238 Invalid, 1952 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 1885 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-31 22:00:27,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states. [2022-01-31 22:00:27,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 393. [2022-01-31 22:00:27,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 388 states have (on average 1.4278350515463918) internal successors, (554), 388 states have internal predecessors, (554), 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 22:00:27,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 558 transitions. [2022-01-31 22:00:27,447 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 558 transitions. Word has length 89 [2022-01-31 22:00:27,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:00:27,448 INFO L470 AbstractCegarLoop]: Abstraction has 393 states and 558 transitions. [2022-01-31 22:00:27,448 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 4.0476190476190474) internal successors, (85), 20 states have internal predecessors, (85), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:00:27,448 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 558 transitions. [2022-01-31 22:00:27,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-01-31 22:00:27,450 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:00:27,450 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:00:27,450 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-31 22:00:27,450 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:00:27,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:00:27,451 INFO L85 PathProgramCache]: Analyzing trace with hash 661510771, now seen corresponding path program 1 times [2022-01-31 22:00:27,451 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:00:27,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [686273458] [2022-01-31 22:00:27,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:00:27,512 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 22:00:27,937 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 22:00:27,938 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:00:28,006 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:00:28,006 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:00:28,006 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:00:28,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:00:28,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:00:28,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:00:28,109 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 22:00:28,542 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:00:28,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [686273458] [2022-01-31 22:00:28,543 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [686273458] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:00:28,543 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:00:28,543 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-31 22:00:28,543 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866783782] [2022-01-31 22:00:28,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:00:28,543 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-31 22:00:28,543 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:00:28,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-31 22:00:28,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=378, Unknown=0, NotChecked=0, Total=462 [2022-01-31 22:00:28,544 INFO L87 Difference]: Start difference. First operand 393 states and 558 transitions. Second operand has 22 states, 21 states have (on average 4.0476190476190474) internal successors, (85), 20 states have internal predecessors, (85), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:00:29,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:00:29,722 INFO L93 Difference]: Finished difference Result 700 states and 975 transitions. [2022-01-31 22:00:29,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-31 22:00:29,723 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 4.0476190476190474) internal successors, (85), 20 states have internal predecessors, (85), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 89 [2022-01-31 22:00:29,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:00:29,727 INFO L225 Difference]: With dead ends: 700 [2022-01-31 22:00:29,727 INFO L226 Difference]: Without dead ends: 483 [2022-01-31 22:00:29,728 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 394 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=280, Invalid=1360, Unknown=0, NotChecked=0, Total=1640 [2022-01-31 22:00:29,731 INFO L933 BasicCegarLoop]: 202 mSDtfsCounter, 899 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 1865 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 899 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 1927 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 1865 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-31 22:00:29,731 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [899 Valid, 239 Invalid, 1927 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 1865 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-31 22:00:29,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2022-01-31 22:00:29,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 393. [2022-01-31 22:00:29,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 388 states have (on average 1.4278350515463918) internal successors, (554), 388 states have internal predecessors, (554), 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 22:00:29,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 558 transitions. [2022-01-31 22:00:29,758 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 558 transitions. Word has length 89 [2022-01-31 22:00:29,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:00:29,758 INFO L470 AbstractCegarLoop]: Abstraction has 393 states and 558 transitions. [2022-01-31 22:00:29,758 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 4.0476190476190474) internal successors, (85), 20 states have internal predecessors, (85), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:00:29,758 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 558 transitions. [2022-01-31 22:00:29,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-01-31 22:00:29,760 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:00:29,760 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:00:29,760 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-31 22:00:29,760 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:00:29,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:00:29,761 INFO L85 PathProgramCache]: Analyzing trace with hash -228991682, now seen corresponding path program 1 times [2022-01-31 22:00:29,761 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:00:29,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1564975702] [2022-01-31 22:00:29,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:00:29,837 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:00:30,280 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 22:00:30,281 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:00:30,413 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 22:00:30,414 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:00:30,414 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:00:30,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:00:30,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:00:30,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:00:30,479 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 22:00:30,913 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:00:30,913 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1564975702] [2022-01-31 22:00:30,913 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1564975702] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:00:30,913 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:00:30,913 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-01-31 22:00:30,913 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536802411] [2022-01-31 22:00:30,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:00:30,914 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-01-31 22:00:30,914 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:00:30,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-01-31 22:00:30,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=455, Unknown=0, NotChecked=0, Total=552 [2022-01-31 22:00:30,914 INFO L87 Difference]: Start difference. First operand 393 states and 558 transitions. Second operand has 24 states, 23 states have (on average 3.8260869565217392) internal successors, (88), 22 states have internal predecessors, (88), 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 22:00:32,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:00:32,514 INFO L93 Difference]: Finished difference Result 720 states and 1001 transitions. [2022-01-31 22:00:32,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-31 22:00:32,515 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 3.8260869565217392) internal successors, (88), 22 states have internal predecessors, (88), 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 92 [2022-01-31 22:00:32,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:00:32,518 INFO L225 Difference]: With dead ends: 720 [2022-01-31 22:00:32,518 INFO L226 Difference]: Without dead ends: 503 [2022-01-31 22:00:32,519 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 488 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=323, Invalid=1657, Unknown=0, NotChecked=0, Total=1980 [2022-01-31 22:00:32,519 INFO L933 BasicCegarLoop]: 205 mSDtfsCounter, 798 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 2893 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 798 SdHoareTripleChecker+Valid, 262 SdHoareTripleChecker+Invalid, 2944 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 2893 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-01-31 22:00:32,519 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [798 Valid, 262 Invalid, 2944 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 2893 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-01-31 22:00:32,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2022-01-31 22:00:32,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 419. [2022-01-31 22:00:32,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 419 states, 414 states have (on average 1.4057971014492754) internal successors, (582), 414 states have internal predecessors, (582), 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 22:00:32,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 586 transitions. [2022-01-31 22:00:32,558 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 586 transitions. Word has length 92 [2022-01-31 22:00:32,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:00:32,558 INFO L470 AbstractCegarLoop]: Abstraction has 419 states and 586 transitions. [2022-01-31 22:00:32,559 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 3.8260869565217392) internal successors, (88), 22 states have internal predecessors, (88), 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 22:00:32,559 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 586 transitions. [2022-01-31 22:00:32,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-01-31 22:00:32,560 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:00:32,560 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:00:32,560 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-31 22:00:32,560 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:00:32,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:00:32,561 INFO L85 PathProgramCache]: Analyzing trace with hash 668401596, now seen corresponding path program 1 times [2022-01-31 22:00:32,561 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:00:32,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [554628773] [2022-01-31 22:00:32,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:00:32,621 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:00:33,091 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 22:00:33,092 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:00:33,170 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 22:00:33,170 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:00:33,170 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:00:33,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:00:33,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:00:33,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:00:33,253 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 22:00:33,659 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:00:33,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [554628773] [2022-01-31 22:00:33,660 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [554628773] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:00:33,660 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:00:33,660 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-01-31 22:00:33,660 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958225316] [2022-01-31 22:00:33,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:00:33,660 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-01-31 22:00:33,660 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:00:33,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-01-31 22:00:33,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=455, Unknown=0, NotChecked=0, Total=552 [2022-01-31 22:00:33,661 INFO L87 Difference]: Start difference. First operand 419 states and 586 transitions. Second operand has 24 states, 23 states have (on average 3.8260869565217392) internal successors, (88), 22 states have internal predecessors, (88), 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 22:00:35,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:00:35,087 INFO L93 Difference]: Finished difference Result 750 states and 1027 transitions. [2022-01-31 22:00:35,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-31 22:00:35,088 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 3.8260869565217392) internal successors, (88), 22 states have internal predecessors, (88), 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 92 [2022-01-31 22:00:35,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:00:35,090 INFO L225 Difference]: With dead ends: 750 [2022-01-31 22:00:35,090 INFO L226 Difference]: Without dead ends: 507 [2022-01-31 22:00:35,091 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 488 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=323, Invalid=1657, Unknown=0, NotChecked=0, Total=1980 [2022-01-31 22:00:35,092 INFO L933 BasicCegarLoop]: 205 mSDtfsCounter, 824 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 2635 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 824 SdHoareTripleChecker+Valid, 262 SdHoareTripleChecker+Invalid, 2685 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 2635 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-31 22:00:35,092 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [824 Valid, 262 Invalid, 2685 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 2635 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-31 22:00:35,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2022-01-31 22:00:35,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 419. [2022-01-31 22:00:35,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 419 states, 414 states have (on average 1.4057971014492754) internal successors, (582), 414 states have internal predecessors, (582), 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 22:00:35,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 586 transitions. [2022-01-31 22:00:35,137 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 586 transitions. Word has length 92 [2022-01-31 22:00:35,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:00:35,137 INFO L470 AbstractCegarLoop]: Abstraction has 419 states and 586 transitions. [2022-01-31 22:00:35,137 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 3.8260869565217392) internal successors, (88), 22 states have internal predecessors, (88), 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 22:00:35,137 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 586 transitions. [2022-01-31 22:00:35,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-01-31 22:00:35,138 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:00:35,143 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:00:35,143 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-31 22:00:35,143 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:00:35,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:00:35,143 INFO L85 PathProgramCache]: Analyzing trace with hash -606471755, now seen corresponding path program 1 times [2022-01-31 22:00:35,143 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:00:35,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2038113066] [2022-01-31 22:00:35,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:00:35,556 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 22:00:35,628 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:00:35,628 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:00:35,688 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:00:35,689 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:00:35,689 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:00:35,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:00:35,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:00:35,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:00:35,774 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 22:00:35,906 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:00:35,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2038113066] [2022-01-31 22:00:35,906 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [2038113066] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:00:35,907 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:00:35,907 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-31 22:00:35,907 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653718266] [2022-01-31 22:00:35,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:00:35,907 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-31 22:00:35,907 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:00:35,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-31 22:00:35,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-01-31 22:00:35,908 INFO L87 Difference]: Start difference. First operand 419 states and 586 transitions. Second operand has 16 states, 15 states have (on average 5.8) internal successors, (87), 14 states have internal predecessors, (87), 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 22:00:36,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:00:36,658 INFO L93 Difference]: Finished difference Result 1008 states and 1433 transitions. [2022-01-31 22:00:36,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-31 22:00:36,658 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 5.8) internal successors, (87), 14 states have internal predecessors, (87), 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 92 [2022-01-31 22:00:36,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:00:36,660 INFO L225 Difference]: With dead ends: 1008 [2022-01-31 22:00:36,660 INFO L226 Difference]: Without dead ends: 579 [2022-01-31 22:00:36,661 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=214, Invalid=598, Unknown=0, NotChecked=0, Total=812 [2022-01-31 22:00:36,662 INFO L933 BasicCegarLoop]: 195 mSDtfsCounter, 790 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 1268 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 790 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 1334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 1268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-31 22:00:36,662 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [790 Valid, 227 Invalid, 1334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 1268 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-31 22:00:36,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579 states. [2022-01-31 22:00:36,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 501. [2022-01-31 22:00:36,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 501 states, 496 states have (on average 1.3891129032258065) internal successors, (689), 496 states have internal predecessors, (689), 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 22:00:36,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 693 transitions. [2022-01-31 22:00:36,695 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 693 transitions. Word has length 92 [2022-01-31 22:00:36,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:00:36,695 INFO L470 AbstractCegarLoop]: Abstraction has 501 states and 693 transitions. [2022-01-31 22:00:36,695 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 5.8) internal successors, (87), 14 states have internal predecessors, (87), 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 22:00:36,695 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 693 transitions. [2022-01-31 22:00:36,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-01-31 22:00:36,696 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:00:36,697 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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, 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 22:00:36,697 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-31 22:00:36,697 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:00:36,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:00:36,697 INFO L85 PathProgramCache]: Analyzing trace with hash 1234911300, now seen corresponding path program 1 times [2022-01-31 22:00:36,697 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:00:36,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1974268947] [2022-01-31 22:00:36,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:00:36,757 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:00:36,758 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:00:36,758 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:00:36,758 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:00:36,887 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=7}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:00:36,887 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:00:36,887 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:00:36,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:00:36,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:00:36,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:00:36,951 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 22:00:37,600 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:00:37,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1974268947] [2022-01-31 22:00:37,601 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1974268947] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:00:37,601 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:00:37,601 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-31 22:00:37,601 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195664758] [2022-01-31 22:00:37,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:00:37,601 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-31 22:00:37,601 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:00:37,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-31 22:00:37,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=533, Unknown=0, NotChecked=0, Total=650 [2022-01-31 22:00:37,602 INFO L87 Difference]: Start difference. First operand 501 states and 693 transitions. Second operand has 26 states, 25 states have (on average 3.56) internal successors, (89), 24 states have internal predecessors, (89), 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 22:00:40,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:00:40,105 INFO L93 Difference]: Finished difference Result 1116 states and 1529 transitions. [2022-01-31 22:00:40,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-31 22:00:40,106 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 3.56) internal successors, (89), 24 states have internal predecessors, (89), 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 93 [2022-01-31 22:00:40,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:00:40,108 INFO L225 Difference]: With dead ends: 1116 [2022-01-31 22:00:40,109 INFO L226 Difference]: Without dead ends: 827 [2022-01-31 22:00:40,110 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 18 SyntacticMatches, 12 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 859 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=449, Invalid=2307, Unknown=0, NotChecked=0, Total=2756 [2022-01-31 22:00:40,110 INFO L933 BasicCegarLoop]: 404 mSDtfsCounter, 1061 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 5299 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1061 SdHoareTripleChecker+Valid, 446 SdHoareTripleChecker+Invalid, 5371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 5299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-01-31 22:00:40,110 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1061 Valid, 446 Invalid, 5371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 5299 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-01-31 22:00:40,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 827 states. [2022-01-31 22:00:40,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 827 to 721. [2022-01-31 22:00:40,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 721 states, 716 states have (on average 1.3910614525139664) internal successors, (996), 716 states have internal predecessors, (996), 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 22:00:40,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 721 states to 721 states and 1000 transitions. [2022-01-31 22:00:40,170 INFO L78 Accepts]: Start accepts. Automaton has 721 states and 1000 transitions. Word has length 93 [2022-01-31 22:00:40,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:00:40,170 INFO L470 AbstractCegarLoop]: Abstraction has 721 states and 1000 transitions. [2022-01-31 22:00:40,170 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 3.56) internal successors, (89), 24 states have internal predecessors, (89), 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 22:00:40,170 INFO L276 IsEmpty]: Start isEmpty. Operand 721 states and 1000 transitions. [2022-01-31 22:00:40,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-01-31 22:00:40,172 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:00:40,172 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:00:40,172 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-31 22:00:40,172 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:00:40,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:00:40,172 INFO L85 PathProgramCache]: Analyzing trace with hash -1258094710, now seen corresponding path program 1 times [2022-01-31 22:00:40,172 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:00:40,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [111889171] [2022-01-31 22:00:40,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:00:40,586 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 22:00:40,660 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:00:40,660 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:00:40,732 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:00:40,732 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:00:40,732 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:00:40,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:00:40,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:00:40,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:00:40,796 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 22:00:41,576 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:00:41,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [111889171] [2022-01-31 22:00:41,577 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [111889171] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:00:41,577 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:00:41,577 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-31 22:00:41,577 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845346678] [2022-01-31 22:00:41,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:00:41,577 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-31 22:00:41,577 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:00:41,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-31 22:00:41,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=480, Unknown=0, NotChecked=0, Total=600 [2022-01-31 22:00:41,578 INFO L87 Difference]: Start difference. First operand 721 states and 1000 transitions. Second operand has 25 states, 24 states have (on average 3.75) internal successors, (90), 23 states have internal predecessors, (90), 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 22:00:42,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:00:42,908 INFO L93 Difference]: Finished difference Result 1816 states and 2609 transitions. [2022-01-31 22:00:42,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-31 22:00:42,908 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 3.75) internal successors, (90), 23 states have internal predecessors, (90), 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 94 [2022-01-31 22:00:42,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:00:42,911 INFO L225 Difference]: With dead ends: 1816 [2022-01-31 22:00:42,911 INFO L226 Difference]: Without dead ends: 1073 [2022-01-31 22:00:42,913 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 31 SyntacticMatches, 6 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 573 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=383, Invalid=1687, Unknown=0, NotChecked=0, Total=2070 [2022-01-31 22:00:42,913 INFO L933 BasicCegarLoop]: 195 mSDtfsCounter, 967 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 1942 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 967 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 2382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 1942 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 330 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-31 22:00:42,913 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [967 Valid, 217 Invalid, 2382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 1942 Invalid, 0 Unknown, 330 Unchecked, 0.8s Time] [2022-01-31 22:00:42,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1073 states. [2022-01-31 22:00:42,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1073 to 926. [2022-01-31 22:00:42,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 926 states, 921 states have (on average 1.3973941368078175) internal successors, (1287), 921 states have internal predecessors, (1287), 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 22:00:42,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 926 states to 926 states and 1291 transitions. [2022-01-31 22:00:42,972 INFO L78 Accepts]: Start accepts. Automaton has 926 states and 1291 transitions. Word has length 94 [2022-01-31 22:00:42,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:00:42,972 INFO L470 AbstractCegarLoop]: Abstraction has 926 states and 1291 transitions. [2022-01-31 22:00:42,972 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 3.75) internal successors, (90), 23 states have internal predecessors, (90), 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 22:00:42,972 INFO L276 IsEmpty]: Start isEmpty. Operand 926 states and 1291 transitions. [2022-01-31 22:00:42,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-01-31 22:00:42,974 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:00:42,974 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:00:42,974 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-31 22:00:42,974 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:00:42,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:00:42,974 INFO L85 PathProgramCache]: Analyzing trace with hash 1547943946, now seen corresponding path program 1 times [2022-01-31 22:00:42,974 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:00:42,974 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [578854436] [2022-01-31 22:00:42,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:00:43,035 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:00:43,077 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 5 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=3, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:00:43,078 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:00:43,078 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:00:43,078 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:00:43,211 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=7}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:00:43,252 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 5 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=3, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:00:43,252 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:00:43,253 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:00:43,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:00:43,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:00:43,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:00:43,307 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 22:00:43,933 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:00:43,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [578854436] [2022-01-31 22:00:43,934 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [578854436] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:00:43,934 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:00:43,934 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-31 22:00:43,934 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557820429] [2022-01-31 22:00:43,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:00:43,934 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-31 22:00:43,934 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:00:43,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-31 22:00:43,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=142, Invalid=560, Unknown=0, NotChecked=0, Total=702 [2022-01-31 22:00:43,935 INFO L87 Difference]: Start difference. First operand 926 states and 1291 transitions. Second operand has 26 states, 25 states have (on average 4.36) internal successors, (109), 24 states have internal predecessors, (109), 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 22:00:46,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:00:46,948 INFO L93 Difference]: Finished difference Result 2643 states and 3712 transitions. [2022-01-31 22:00:46,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-31 22:00:46,948 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 4.36) internal successors, (109), 24 states have internal predecessors, (109), 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 114 [2022-01-31 22:00:46,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:00:46,973 INFO L225 Difference]: With dead ends: 2643 [2022-01-31 22:00:46,973 INFO L226 Difference]: Without dead ends: 1457 [2022-01-31 22:00:46,975 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 39 SyntacticMatches, 12 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 981 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=532, Invalid=2438, Unknown=0, NotChecked=0, Total=2970 [2022-01-31 22:00:46,977 INFO L933 BasicCegarLoop]: 403 mSDtfsCounter, 1138 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 6123 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1138 SdHoareTripleChecker+Valid, 420 SdHoareTripleChecker+Invalid, 6239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 6123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-01-31 22:00:46,977 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1138 Valid, 420 Invalid, 6239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 6123 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-01-31 22:00:46,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1457 states. [2022-01-31 22:00:47,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1457 to 1242. [2022-01-31 22:00:47,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1242 states, 1237 states have (on average 1.4244139046079225) internal successors, (1762), 1237 states have internal predecessors, (1762), 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 22:00:47,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1242 states to 1242 states and 1766 transitions. [2022-01-31 22:00:47,062 INFO L78 Accepts]: Start accepts. Automaton has 1242 states and 1766 transitions. Word has length 114 [2022-01-31 22:00:47,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:00:47,062 INFO L470 AbstractCegarLoop]: Abstraction has 1242 states and 1766 transitions. [2022-01-31 22:00:47,062 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 4.36) internal successors, (109), 24 states have internal predecessors, (109), 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 22:00:47,062 INFO L276 IsEmpty]: Start isEmpty. Operand 1242 states and 1766 transitions. [2022-01-31 22:00:47,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-01-31 22:00:47,064 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:00:47,064 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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, 1, 1] [2022-01-31 22:00:47,064 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-31 22:00:47,064 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:00:47,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:00:47,065 INFO L85 PathProgramCache]: Analyzing trace with hash 110155248, now seen corresponding path program 1 times [2022-01-31 22:00:47,065 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:00:47,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [534278342] [2022-01-31 22:00:47,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:00:47,468 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 22:00:47,521 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 4 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=2, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:00:47,632 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:00:47,632 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:00:47,719 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:00:47,719 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:00:47,780 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 4 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=2, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:00:47,876 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:00:47,877 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:00:47,877 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:00:47,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:00:47,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:00:47,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:00:47,936 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 22:00:48,770 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:00:48,770 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [534278342] [2022-01-31 22:00:48,770 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [534278342] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:00:48,770 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:00:48,770 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-01-31 22:00:48,770 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473017906] [2022-01-31 22:00:48,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:00:48,771 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-01-31 22:00:48,771 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:00:48,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-01-31 22:00:48,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=183, Invalid=687, Unknown=0, NotChecked=0, Total=870 [2022-01-31 22:00:48,771 INFO L87 Difference]: Start difference. First operand 1242 states and 1766 transitions. Second operand has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 29 states have internal predecessors, (119), 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 22:00:50,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:00:50,717 INFO L93 Difference]: Finished difference Result 3836 states and 5441 transitions. [2022-01-31 22:00:50,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-31 22:00:50,717 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 29 states have internal predecessors, (119), 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 123 [2022-01-31 22:00:50,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:00:50,723 INFO L225 Difference]: With dead ends: 3836 [2022-01-31 22:00:50,723 INFO L226 Difference]: Without dead ends: 2320 [2022-01-31 22:00:50,726 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 905 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=541, Invalid=2539, Unknown=0, NotChecked=0, Total=3080 [2022-01-31 22:00:50,726 INFO L933 BasicCegarLoop]: 162 mSDtfsCounter, 1512 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 3546 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1512 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 3608 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 3546 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-01-31 22:00:50,726 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1512 Valid, 189 Invalid, 3608 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 3546 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-01-31 22:00:50,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2320 states. [2022-01-31 22:00:50,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2320 to 1598. [2022-01-31 22:00:50,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1598 states, 1593 states have (on average 1.4218455743879472) internal successors, (2265), 1593 states have internal predecessors, (2265), 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 22:00:50,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1598 states to 1598 states and 2269 transitions. [2022-01-31 22:00:50,856 INFO L78 Accepts]: Start accepts. Automaton has 1598 states and 2269 transitions. Word has length 123 [2022-01-31 22:00:50,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:00:50,856 INFO L470 AbstractCegarLoop]: Abstraction has 1598 states and 2269 transitions. [2022-01-31 22:00:50,856 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 29 states have internal predecessors, (119), 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 22:00:50,856 INFO L276 IsEmpty]: Start isEmpty. Operand 1598 states and 2269 transitions. [2022-01-31 22:00:50,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-01-31 22:00:50,858 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:00:50,859 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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, 1, 1] [2022-01-31 22:00:50,859 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-31 22:00:50,859 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:00:50,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:00:50,860 INFO L85 PathProgramCache]: Analyzing trace with hash -1623949202, now seen corresponding path program 1 times [2022-01-31 22:00:50,860 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:00:50,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1304422365] [2022-01-31 22:00:50,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:00:51,267 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 22:00:51,307 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 4 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=2, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:00:51,359 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:00:51,359 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:00:51,453 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:00:51,454 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:00:51,512 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 4 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=2, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:00:51,591 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:00:51,591 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:00:51,591 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:00:51,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:00:51,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:00:51,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:00:51,673 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 22:00:52,386 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:00:52,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1304422365] [2022-01-31 22:00:52,386 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1304422365] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:00:52,386 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:00:52,387 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-01-31 22:00:52,387 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981309711] [2022-01-31 22:00:52,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:00:52,387 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-01-31 22:00:52,387 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:00:52,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-01-31 22:00:52,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=477, Unknown=0, NotChecked=0, Total=600 [2022-01-31 22:00:52,388 INFO L87 Difference]: Start difference. First operand 1598 states and 2269 transitions. Second operand has 24 states, 23 states have (on average 5.173913043478261) internal successors, (119), 22 states have internal predecessors, (119), 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 22:00:53,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:00:53,878 INFO L93 Difference]: Finished difference Result 3338 states and 4701 transitions. [2022-01-31 22:00:53,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-31 22:00:53,879 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 5.173913043478261) internal successors, (119), 22 states have internal predecessors, (119), 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 123 [2022-01-31 22:00:53,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:00:53,884 INFO L225 Difference]: With dead ends: 3338 [2022-01-31 22:00:53,884 INFO L226 Difference]: Without dead ends: 1754 [2022-01-31 22:00:53,903 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 58 SyntacticMatches, 8 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 556 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=347, Invalid=1545, Unknown=0, NotChecked=0, Total=1892 [2022-01-31 22:00:53,904 INFO L933 BasicCegarLoop]: 166 mSDtfsCounter, 857 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 2138 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 857 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 2617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 2138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 384 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-31 22:00:53,904 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [857 Valid, 218 Invalid, 2617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 2138 Invalid, 0 Unknown, 384 Unchecked, 0.9s Time] [2022-01-31 22:00:53,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1754 states. [2022-01-31 22:00:54,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1754 to 1665. [2022-01-31 22:00:54,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1665 states, 1660 states have (on average 1.4066265060240963) internal successors, (2335), 1660 states have internal predecessors, (2335), 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 22:00:54,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1665 states to 1665 states and 2339 transitions. [2022-01-31 22:00:54,058 INFO L78 Accepts]: Start accepts. Automaton has 1665 states and 2339 transitions. Word has length 123 [2022-01-31 22:00:54,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:00:54,058 INFO L470 AbstractCegarLoop]: Abstraction has 1665 states and 2339 transitions. [2022-01-31 22:00:54,058 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 5.173913043478261) internal successors, (119), 22 states have internal predecessors, (119), 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 22:00:54,058 INFO L276 IsEmpty]: Start isEmpty. Operand 1665 states and 2339 transitions. [2022-01-31 22:00:54,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-01-31 22:00:54,060 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:00:54,060 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1] [2022-01-31 22:00:54,060 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-31 22:00:54,061 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:00:54,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:00:54,062 INFO L85 PathProgramCache]: Analyzing trace with hash 954661998, now seen corresponding path program 1 times [2022-01-31 22:00:54,062 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:00:54,062 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1338852355] [2022-01-31 22:00:54,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:00:54,066 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:00:54,067 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:00:54,067 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:00:54,067 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:00:54,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:00:54,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:00:54,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:00:54,090 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 22:00:54,090 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:00:54,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1338852355] [2022-01-31 22:00:54,090 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1338852355] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:00:54,090 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:00:54,090 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 22:00:54,090 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438576632] [2022-01-31 22:00:54,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:00:54,091 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 22:00:54,091 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:00:54,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 22:00:54,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 22:00:54,091 INFO L87 Difference]: Start difference. First operand 1665 states and 2339 transitions. Second operand has 4 states, 4 states have (on average 24.0) internal successors, (96), 3 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:00:54,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:00:54,504 INFO L93 Difference]: Finished difference Result 4741 states and 6718 transitions. [2022-01-31 22:00:54,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 22:00:54,505 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 3 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 124 [2022-01-31 22:00:54,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:00:54,512 INFO L225 Difference]: With dead ends: 4741 [2022-01-31 22:00:54,513 INFO L226 Difference]: Without dead ends: 3108 [2022-01-31 22:00:54,515 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:00:54,516 INFO L933 BasicCegarLoop]: 319 mSDtfsCounter, 438 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 438 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-31 22:00:54,516 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [438 Valid, 326 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-31 22:00:54,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3108 states. [2022-01-31 22:00:54,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3108 to 3091. [2022-01-31 22:00:54,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3091 states, 3086 states have (on average 1.406351263771873) internal successors, (4340), 3086 states have internal predecessors, (4340), 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 22:00:54,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3091 states to 3091 states and 4344 transitions. [2022-01-31 22:00:54,833 INFO L78 Accepts]: Start accepts. Automaton has 3091 states and 4344 transitions. Word has length 124 [2022-01-31 22:00:54,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:00:54,833 INFO L470 AbstractCegarLoop]: Abstraction has 3091 states and 4344 transitions. [2022-01-31 22:00:54,833 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 3 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:00:54,833 INFO L276 IsEmpty]: Start isEmpty. Operand 3091 states and 4344 transitions. [2022-01-31 22:00:54,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-01-31 22:00:54,837 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:00:54,837 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:00:54,837 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-31 22:00:54,837 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:00:54,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:00:54,838 INFO L85 PathProgramCache]: Analyzing trace with hash 360534986, now seen corresponding path program 1 times [2022-01-31 22:00:54,838 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:00:54,838 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2003861707] [2022-01-31 22:00:54,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:00:57,886 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 9 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=7, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:00:57,929 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 4 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=2, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:00:57,929 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:00:57,929 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:00:57,929 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:00:58,060 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 22:00:58,061 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:00:58,062 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:00:58,062 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:00:58,142 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 5 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=5}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:00:58,142 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:00:58,143 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:00:58,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:00:58,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:00:58,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:00:58,199 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 22:00:59,698 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:00:59,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2003861707] [2022-01-31 22:00:59,698 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [2003861707] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:00:59,698 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:00:59,698 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-31 22:00:59,698 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941816105] [2022-01-31 22:00:59,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:00:59,699 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-31 22:00:59,699 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:00:59,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-31 22:00:59,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=197, Invalid=795, Unknown=0, NotChecked=0, Total=992 [2022-01-31 22:00:59,699 INFO L87 Difference]: Start difference. First operand 3091 states and 4344 transitions. Second operand has 31 states, 31 states have (on average 3.903225806451613) internal successors, (121), 30 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:01:02,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:01:02,247 INFO L93 Difference]: Finished difference Result 8432 states and 11950 transitions. [2022-01-31 22:01:02,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-31 22:01:02,248 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 3.903225806451613) internal successors, (121), 30 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 125 [2022-01-31 22:01:02,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:01:02,261 INFO L225 Difference]: With dead ends: 8432 [2022-01-31 22:01:02,261 INFO L226 Difference]: Without dead ends: 5437 [2022-01-31 22:01:02,277 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 19 SyntacticMatches, 34 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1776 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=556, Invalid=2866, Unknown=0, NotChecked=0, Total=3422 [2022-01-31 22:01:02,279 INFO L933 BasicCegarLoop]: 188 mSDtfsCounter, 651 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 3483 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 651 SdHoareTripleChecker+Valid, 250 SdHoareTripleChecker+Invalid, 3523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 3483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-01-31 22:01:02,280 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [651 Valid, 250 Invalid, 3523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 3483 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-01-31 22:01:02,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5437 states. [2022-01-31 22:01:02,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5437 to 3764. [2022-01-31 22:01:02,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3764 states, 3759 states have (on average 1.409417398244214) internal successors, (5298), 3759 states have internal predecessors, (5298), 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 22:01:02,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3764 states to 3764 states and 5302 transitions. [2022-01-31 22:01:02,675 INFO L78 Accepts]: Start accepts. Automaton has 3764 states and 5302 transitions. Word has length 125 [2022-01-31 22:01:02,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:01:02,675 INFO L470 AbstractCegarLoop]: Abstraction has 3764 states and 5302 transitions. [2022-01-31 22:01:02,675 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 3.903225806451613) internal successors, (121), 30 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:01:02,675 INFO L276 IsEmpty]: Start isEmpty. Operand 3764 states and 5302 transitions. [2022-01-31 22:01:02,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-31 22:01:02,680 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:01:02,680 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-01-31 22:01:02,680 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-31 22:01:02,680 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:01:02,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:01:02,681 INFO L85 PathProgramCache]: Analyzing trace with hash -60581258, now seen corresponding path program 1 times [2022-01-31 22:01:02,681 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:01:02,681 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [310724839] [2022-01-31 22:01:02,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:01:03,100 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 22:01:33,985 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 3 HavocedVariables, 9 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=7, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:01:34,047 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:01:34,048 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:01:34,126 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:01:34,126 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:01:34,188 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:02:05,475 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 3 HavocedVariables, 9 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=7, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:02:05,476 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:02:05,476 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:02:05,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:02:05,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:02:05,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:02:05,583 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 22:02:06,731 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:02:06,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [310724839] [2022-01-31 22:02:06,731 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [310724839] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:02:06,731 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:02:06,731 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-31 22:02:06,732 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631548336] [2022-01-31 22:02:06,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:02:06,732 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-31 22:02:06,732 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:02:06,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-31 22:02:06,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=158, Invalid=834, Unknown=0, NotChecked=0, Total=992 [2022-01-31 22:02:06,733 INFO L87 Difference]: Start difference. First operand 3764 states and 5302 transitions. Second operand has 31 states, 30 states have (on average 4.366666666666666) internal successors, (131), 29 states have internal predecessors, (131), 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 22:02:09,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:02:09,208 INFO L93 Difference]: Finished difference Result 7609 states and 10701 transitions. [2022-01-31 22:02:09,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-31 22:02:09,213 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 30 states have (on average 4.366666666666666) internal successors, (131), 29 states have internal predecessors, (131), 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 135 [2022-01-31 22:02:09,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:02:09,224 INFO L225 Difference]: With dead ends: 7609 [2022-01-31 22:02:09,224 INFO L226 Difference]: Without dead ends: 3999 [2022-01-31 22:02:09,230 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 63 SyntacticMatches, 6 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1078 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=496, Invalid=3044, Unknown=0, NotChecked=0, Total=3540 [2022-01-31 22:02:09,231 INFO L933 BasicCegarLoop]: 184 mSDtfsCounter, 767 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 3317 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 767 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 3745 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 3317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 346 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-01-31 22:02:09,231 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [767 Valid, 261 Invalid, 3745 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 3317 Invalid, 0 Unknown, 346 Unchecked, 1.4s Time] [2022-01-31 22:02:09,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3999 states. [2022-01-31 22:02:09,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3999 to 3850. [2022-01-31 22:02:09,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3850 states, 3845 states have (on average 1.4010403120936281) internal successors, (5387), 3845 states have internal predecessors, (5387), 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 22:02:09,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3850 states to 3850 states and 5391 transitions. [2022-01-31 22:02:09,606 INFO L78 Accepts]: Start accepts. Automaton has 3850 states and 5391 transitions. Word has length 135 [2022-01-31 22:02:09,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:02:09,606 INFO L470 AbstractCegarLoop]: Abstraction has 3850 states and 5391 transitions. [2022-01-31 22:02:09,606 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 30 states have (on average 4.366666666666666) internal successors, (131), 29 states have internal predecessors, (131), 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 22:02:09,606 INFO L276 IsEmpty]: Start isEmpty. Operand 3850 states and 5391 transitions. [2022-01-31 22:02:09,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2022-01-31 22:02:09,611 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:02:09,611 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:02:09,611 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-31 22:02:09,611 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:02:09,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:02:09,611 INFO L85 PathProgramCache]: Analyzing trace with hash 131725076, now seen corresponding path program 1 times [2022-01-31 22:02:09,611 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:02:09,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [450412263] [2022-01-31 22:02:09,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:02:09,618 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:02:09,618 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:02:09,618 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:02:09,619 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:02:09,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:02:09,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:02:09,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:02:09,642 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 22:02:09,642 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:02:09,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [450412263] [2022-01-31 22:02:09,642 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [450412263] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:02:09,642 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:02:09,642 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 22:02:09,642 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932582726] [2022-01-31 22:02:09,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:02:09,642 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 22:02:09,642 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:02:09,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 22:02:09,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 22:02:09,643 INFO L87 Difference]: Start difference. First operand 3850 states and 5391 transitions. Second operand has 4 states, 4 states have (on average 28.5) internal successors, (114), 3 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 22:02:10,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:02:10,086 INFO L93 Difference]: Finished difference Result 7460 states and 10528 transitions. [2022-01-31 22:02:10,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 22:02:10,087 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.5) internal successors, (114), 3 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 136 [2022-01-31 22:02:10,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:02:10,112 INFO L225 Difference]: With dead ends: 7460 [2022-01-31 22:02:10,112 INFO L226 Difference]: Without dead ends: 3850 [2022-01-31 22:02:10,117 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:02:10,117 INFO L933 BasicCegarLoop]: 218 mSDtfsCounter, 334 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 334 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-31 22:02:10,117 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [334 Valid, 225 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-31 22:02:10,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3850 states. [2022-01-31 22:02:10,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3850 to 3850. [2022-01-31 22:02:10,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3850 states, 3845 states have (on average 1.377633289986996) internal successors, (5297), 3845 states have internal predecessors, (5297), 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 22:02:10,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3850 states to 3850 states and 5301 transitions. [2022-01-31 22:02:10,504 INFO L78 Accepts]: Start accepts. Automaton has 3850 states and 5301 transitions. Word has length 136 [2022-01-31 22:02:10,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:02:10,505 INFO L470 AbstractCegarLoop]: Abstraction has 3850 states and 5301 transitions. [2022-01-31 22:02:10,505 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.5) internal successors, (114), 3 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 22:02:10,505 INFO L276 IsEmpty]: Start isEmpty. Operand 3850 states and 5301 transitions. [2022-01-31 22:02:10,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-31 22:02:10,509 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:02:10,509 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:02:10,509 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-31 22:02:10,509 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:02:10,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:02:10,509 INFO L85 PathProgramCache]: Analyzing trace with hash 1608629923, now seen corresponding path program 1 times [2022-01-31 22:02:10,510 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:02:10,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [666175273] [2022-01-31 22:02:10,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:02:10,516 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:02:10,516 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:02:10,516 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:02:10,517 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:02:10,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:02:10,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:02:10,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:02:10,546 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 22:02:10,546 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:02:10,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [666175273] [2022-01-31 22:02:10,547 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [666175273] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:02:10,547 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:02:10,547 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 22:02:10,547 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172347303] [2022-01-31 22:02:10,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:02:10,547 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 22:02:10,547 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:02:10,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 22:02:10,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 22:02:10,548 INFO L87 Difference]: Start difference. First operand 3850 states and 5301 transitions. Second operand has 4 states, 4 states have (on average 29.5) internal successors, (118), 3 states have internal predecessors, (118), 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 22:02:10,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:02:10,942 INFO L93 Difference]: Finished difference Result 7544 states and 10452 transitions. [2022-01-31 22:02:10,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 22:02:10,943 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 3 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 137 [2022-01-31 22:02:10,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:02:10,954 INFO L225 Difference]: With dead ends: 7544 [2022-01-31 22:02:10,954 INFO L226 Difference]: Without dead ends: 3934 [2022-01-31 22:02:10,959 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:02:10,959 INFO L933 BasicCegarLoop]: 204 mSDtfsCounter, 350 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 350 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-31 22:02:10,959 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [350 Valid, 211 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-31 22:02:10,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3934 states. [2022-01-31 22:02:11,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3934 to 3770. [2022-01-31 22:02:11,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3770 states, 3765 states have (on average 1.3654714475431606) internal successors, (5141), 3765 states have internal predecessors, (5141), 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 22:02:11,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3770 states to 3770 states and 5145 transitions. [2022-01-31 22:02:11,356 INFO L78 Accepts]: Start accepts. Automaton has 3770 states and 5145 transitions. Word has length 137 [2022-01-31 22:02:11,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:02:11,357 INFO L470 AbstractCegarLoop]: Abstraction has 3770 states and 5145 transitions. [2022-01-31 22:02:11,357 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 3 states have internal predecessors, (118), 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 22:02:11,357 INFO L276 IsEmpty]: Start isEmpty. Operand 3770 states and 5145 transitions. [2022-01-31 22:02:11,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-01-31 22:02:11,361 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:02:11,361 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:02:11,361 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-31 22:02:11,361 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:02:11,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:02:11,362 INFO L85 PathProgramCache]: Analyzing trace with hash -887194732, now seen corresponding path program 1 times [2022-01-31 22:02:11,362 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:02:11,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1375460038] [2022-01-31 22:02:11,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:02:11,758 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 22:02:42,646 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 3 HavocedVariables, 9 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=7, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:02:42,715 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:02:42,715 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:02:42,775 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:03:13,464 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 3 HavocedVariables, 9 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=7, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:03:13,464 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:03:13,465 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:03:13,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:03:13,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:03:13,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:03:13,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:03:14,522 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:03:14,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1375460038] [2022-01-31 22:03:14,523 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1375460038] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:03:14,523 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:03:14,523 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2022-01-31 22:03:14,523 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522488301] [2022-01-31 22:03:14,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:03:14,523 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-01-31 22:03:14,523 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:03:14,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-01-31 22:03:14,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=223, Invalid=1037, Unknown=0, NotChecked=0, Total=1260 [2022-01-31 22:03:14,524 INFO L87 Difference]: Start difference. First operand 3770 states and 5145 transitions. Second operand has 35 states, 35 states have (on average 3.8285714285714287) internal successors, (134), 34 states have internal predecessors, (134), 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 22:03:19,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:03:19,335 INFO L93 Difference]: Finished difference Result 13244 states and 18318 transitions. [2022-01-31 22:03:19,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-01-31 22:03:19,336 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 3.8285714285714287) internal successors, (134), 34 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 138 [2022-01-31 22:03:19,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:03:19,349 INFO L225 Difference]: With dead ends: 13244 [2022-01-31 22:03:19,349 INFO L226 Difference]: Without dead ends: 9057 [2022-01-31 22:03:19,354 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 63 SyntacticMatches, 1 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1406 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=631, Invalid=3791, Unknown=0, NotChecked=0, Total=4422 [2022-01-31 22:03:19,355 INFO L933 BasicCegarLoop]: 406 mSDtfsCounter, 1217 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 8377 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1217 SdHoareTripleChecker+Valid, 468 SdHoareTripleChecker+Invalid, 8474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 8377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-01-31 22:03:19,355 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1217 Valid, 468 Invalid, 8474 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 8377 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-01-31 22:03:19,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9057 states. [2022-01-31 22:03:19,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9057 to 5280. [2022-01-31 22:03:19,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5280 states, 5275 states have (on average 1.387867298578199) internal successors, (7321), 5275 states have internal predecessors, (7321), 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 22:03:19,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5280 states to 5280 states and 7325 transitions. [2022-01-31 22:03:19,938 INFO L78 Accepts]: Start accepts. Automaton has 5280 states and 7325 transitions. Word has length 138 [2022-01-31 22:03:19,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:03:19,939 INFO L470 AbstractCegarLoop]: Abstraction has 5280 states and 7325 transitions. [2022-01-31 22:03:19,939 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 3.8285714285714287) internal successors, (134), 34 states have internal predecessors, (134), 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 22:03:19,939 INFO L276 IsEmpty]: Start isEmpty. Operand 5280 states and 7325 transitions. [2022-01-31 22:03:19,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-01-31 22:03:19,944 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:03:19,944 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:03:19,944 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-31 22:03:19,944 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:03:19,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:03:19,944 INFO L85 PathProgramCache]: Analyzing trace with hash -1008790142, now seen corresponding path program 1 times [2022-01-31 22:03:19,944 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:03:19,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1149368507] [2022-01-31 22:03:19,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:03:22,887 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 9 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=7, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:09:23,062 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 3 HavocedVariables, 10 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=8, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:09:23,176 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 22:09:23,176 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION