/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/acceleratedInterpolationQvasr_64.epf -i ../../../trunk/examples/svcomp/openssl-simplified/s3_srvr_12.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-6c470ae [2022-02-15 04:21:11,987 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-15 04:21:11,989 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-15 04:21:12,046 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-02-15 04:21:12,066 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-15 04:21:12,066 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-15 04:21:12,067 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-15 04:21:12,068 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-15 04:21:12,068 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-15 04:21:12,069 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-15 04:21:12,070 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-15 04:21:12,071 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-15 04:21:12,072 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-15 04:21:12,073 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-15 04:21:12,074 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-15 04:21:12,075 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-15 04:21:12,077 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-15 04:21:12,083 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-15 04:21:12,083 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-15 04:21:12,084 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-15 04:21:12,085 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationQvasr_64.epf [2022-02-15 04:21:12,092 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-15 04:21:12,093 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-15 04:21:12,094 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-15 04:21:12,094 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-15 04:21:12,094 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-15 04:21:12,094 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-15 04:21:12,094 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-15 04:21:12,095 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-15 04:21:12,095 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-15 04:21:12,095 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-15 04:21:12,095 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-15 04:21:12,095 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-15 04:21:12,095 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-15 04:21:12,095 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-15 04:21:12,096 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-15 04:21:12,096 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-15 04:21:12,096 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-15 04:21:12,096 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2022-02-15 04:21:12,096 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-15 04:21:12,096 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=QVASR [2022-02-15 04:21:12,096 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-02-15 04:21:12,314 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-15 04:21:12,331 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-15 04:21:12,333 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-15 04:21:12,334 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-15 04:21:12,335 INFO L275 PluginConnector]: CDTParser initialized [2022-02-15 04:21:12,336 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl-simplified/s3_srvr_12.cil.c [2022-02-15 04:21:12,396 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/44aee7dff/3ea51d03739642a5b67af32eb18e8e79/FLAG8db247678 [2022-02-15 04:21:12,747 INFO L306 CDTParser]: Found 1 translation units. [2022-02-15 04:21:12,748 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl-simplified/s3_srvr_12.cil.c [2022-02-15 04:21:12,764 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/44aee7dff/3ea51d03739642a5b67af32eb18e8e79/FLAG8db247678 [2022-02-15 04:21:12,775 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/44aee7dff/3ea51d03739642a5b67af32eb18e8e79 [2022-02-15 04:21:12,777 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-15 04:21:12,778 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-15 04:21:12,780 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-15 04:21:12,780 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-15 04:21:12,783 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-15 04:21:12,784 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 04:21:12" (1/1) ... [2022-02-15 04:21:12,785 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@736b8c2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 04:21:12, skipping insertion in model container [2022-02-15 04:21:12,786 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 04:21:12" (1/1) ... [2022-02-15 04:21:12,791 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-15 04:21:12,820 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-15 04:21:13,030 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/openssl-simplified/s3_srvr_12.cil.c[49672,49685] [2022-02-15 04:21:13,036 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-15 04:21:13,043 INFO L203 MainTranslator]: Completed pre-run [2022-02-15 04:21:13,099 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/openssl-simplified/s3_srvr_12.cil.c[49672,49685] [2022-02-15 04:21:13,102 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-15 04:21:13,112 INFO L208 MainTranslator]: Completed translation [2022-02-15 04:21:13,113 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 04:21:13 WrapperNode [2022-02-15 04:21:13,113 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-15 04:21:13,114 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-15 04:21:13,114 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-15 04:21:13,114 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-15 04:21:13,124 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 04:21:13" (1/1) ... [2022-02-15 04:21:13,124 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 04:21:13" (1/1) ... [2022-02-15 04:21:13,132 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 04:21:13" (1/1) ... [2022-02-15 04:21:13,133 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 04:21:13" (1/1) ... [2022-02-15 04:21:13,143 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 04:21:13" (1/1) ... [2022-02-15 04:21:13,153 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 04:21:13" (1/1) ... [2022-02-15 04:21:13,155 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 04:21:13" (1/1) ... [2022-02-15 04:21:13,159 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-15 04:21:13,159 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-15 04:21:13,159 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-15 04:21:13,160 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-15 04:21:13,168 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 04:21:13" (1/1) ... [2022-02-15 04:21:13,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-15 04:21:13,184 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-15 04:21:13,196 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) [2022-02-15 04:21:13,226 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 [2022-02-15 04:21:13,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-02-15 04:21:13,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-15 04:21:13,241 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-02-15 04:21:13,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-02-15 04:21:13,242 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-02-15 04:21:13,242 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-02-15 04:21:13,242 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-02-15 04:21:13,242 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-02-15 04:21:13,243 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-15 04:21:13,243 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-02-15 04:21:13,243 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-02-15 04:21:13,243 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-02-15 04:21:13,244 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-02-15 04:21:13,244 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-02-15 04:21:13,244 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-02-15 04:21:13,244 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-02-15 04:21:13,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-15 04:21:13,245 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-15 04:21:13,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-15 04:21:13,247 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-15 04:21:13,247 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-15 04:21:13,329 INFO L234 CfgBuilder]: Building ICFG [2022-02-15 04:21:13,331 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-15 04:21:13,411 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-02-15 04:21:13,763 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2022-02-15 04:21:13,763 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2022-02-15 04:21:13,769 INFO L275 CfgBuilder]: Performing block encoding [2022-02-15 04:21:13,776 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-15 04:21:13,776 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-02-15 04:21:13,778 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 04:21:13 BoogieIcfgContainer [2022-02-15 04:21:13,778 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-15 04:21:13,780 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-15 04:21:13,780 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-15 04:21:13,783 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-15 04:21:13,783 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.02 04:21:12" (1/3) ... [2022-02-15 04:21:13,784 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f4504c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 04:21:13, skipping insertion in model container [2022-02-15 04:21:13,784 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 04:21:13" (2/3) ... [2022-02-15 04:21:13,784 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f4504c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 04:21:13, skipping insertion in model container [2022-02-15 04:21:13,784 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 04:21:13" (3/3) ... [2022-02-15 04:21:13,785 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr_12.cil.c [2022-02-15 04:21:13,790 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-02-15 04:21:13,790 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-15 04:21:13,822 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-15 04:21:13,828 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=QVASR [2022-02-15 04:21:13,828 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-15 04:21:13,844 INFO L276 IsEmpty]: Start isEmpty. Operand has 176 states, 168 states have (on average 1.75) internal successors, (294), 169 states have internal predecessors, (294), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-02-15 04:21:13,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-02-15 04:21:13,852 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:21:13,853 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:21:13,853 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:21:13,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:21:13,858 INFO L85 PathProgramCache]: Analyzing trace with hash 1199187261, now seen corresponding path program 1 times [2022-02-15 04:21:13,864 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:21:13,864 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1810940747] [2022-02-15 04:21:13,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:21:13,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:21:13,911 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:21:14,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:21:14,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:21:14,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:21:14,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:21:14,130 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:21:14,130 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1810940747] [2022-02-15 04:21:14,131 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1810940747] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:21:14,131 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:21:14,132 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-15 04:21:14,133 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250067661] [2022-02-15 04:21:14,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:21:14,137 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-15 04:21:14,137 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:21:14,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-15 04:21:14,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-15 04:21:14,160 INFO L87 Difference]: Start difference. First operand has 176 states, 168 states have (on average 1.75) internal successors, (294), 169 states have internal predecessors, (294), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 6 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:21:14,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:21:14,671 INFO L93 Difference]: Finished difference Result 363 states and 624 transitions. [2022-02-15 04:21:14,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-15 04:21:14,673 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 34 [2022-02-15 04:21:14,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:21:14,682 INFO L225 Difference]: With dead ends: 363 [2022-02-15 04:21:14,682 INFO L226 Difference]: Without dead ends: 180 [2022-02-15 04:21:14,685 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-02-15 04:21:14,688 INFO L933 BasicCegarLoop]: 237 mSDtfsCounter, 862 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 430 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 862 SdHoareTripleChecker+Valid, 258 SdHoareTripleChecker+Invalid, 468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-02-15 04:21:14,688 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [862 Valid, 258 Invalid, 468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 430 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-02-15 04:21:14,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2022-02-15 04:21:14,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 178. [2022-02-15 04:21:14,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 173 states have (on average 1.6127167630057804) internal successors, (279), 173 states have internal predecessors, (279), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:21:14,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 283 transitions. [2022-02-15 04:21:14,769 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 283 transitions. Word has length 34 [2022-02-15 04:21:14,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:21:14,769 INFO L470 AbstractCegarLoop]: Abstraction has 178 states and 283 transitions. [2022-02-15 04:21:14,769 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:21:14,769 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 283 transitions. [2022-02-15 04:21:14,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-02-15 04:21:14,771 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:21:14,771 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:21:14,771 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-15 04:21:14,771 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:21:14,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:21:14,772 INFO L85 PathProgramCache]: Analyzing trace with hash -576860, now seen corresponding path program 1 times [2022-02-15 04:21:14,772 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:21:14,772 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [706143863] [2022-02-15 04:21:14,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:21:14,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:21:14,775 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:21:14,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:21:14,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:21:14,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:21:14,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:21:14,851 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:21:14,851 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [706143863] [2022-02-15 04:21:14,852 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [706143863] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:21:14,852 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:21:14,852 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-15 04:21:14,852 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242669696] [2022-02-15 04:21:14,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:21:14,853 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-15 04:21:14,853 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:21:14,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-15 04:21:14,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-15 04:21:14,854 INFO L87 Difference]: Start difference. First operand 178 states and 283 transitions. Second operand has 6 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:21:15,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:21:15,252 INFO L93 Difference]: Finished difference Result 364 states and 581 transitions. [2022-02-15 04:21:15,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-15 04:21:15,253 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 35 [2022-02-15 04:21:15,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:21:15,255 INFO L225 Difference]: With dead ends: 364 [2022-02-15 04:21:15,255 INFO L226 Difference]: Without dead ends: 200 [2022-02-15 04:21:15,256 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-02-15 04:21:15,257 INFO L933 BasicCegarLoop]: 180 mSDtfsCounter, 766 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 766 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-15 04:21:15,258 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [766 Valid, 197 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 355 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-15 04:21:15,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2022-02-15 04:21:15,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 200. [2022-02-15 04:21:15,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 195 states have (on average 1.5846153846153845) internal successors, (309), 195 states have internal predecessors, (309), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:21:15,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 313 transitions. [2022-02-15 04:21:15,283 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 313 transitions. Word has length 35 [2022-02-15 04:21:15,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:21:15,284 INFO L470 AbstractCegarLoop]: Abstraction has 200 states and 313 transitions. [2022-02-15 04:21:15,284 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:21:15,284 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 313 transitions. [2022-02-15 04:21:15,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-02-15 04:21:15,285 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:21:15,285 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:21:15,286 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-15 04:21:15,287 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:21:15,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:21:15,290 INFO L85 PathProgramCache]: Analyzing trace with hash 1037347800, now seen corresponding path program 1 times [2022-02-15 04:21:15,295 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:21:15,295 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [536190938] [2022-02-15 04:21:15,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:21:15,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:21:15,298 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:21:15,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:21:15,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:21:15,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:21:15,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:21:15,411 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:21:15,411 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [536190938] [2022-02-15 04:21:15,411 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [536190938] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:21:15,412 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:21:15,412 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-15 04:21:15,412 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304839624] [2022-02-15 04:21:15,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:21:15,413 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-15 04:21:15,413 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:21:15,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-15 04:21:15,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-15 04:21:15,414 INFO L87 Difference]: Start difference. First operand 200 states and 313 transitions. Second operand has 6 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:21:15,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:21:15,743 INFO L93 Difference]: Finished difference Result 393 states and 622 transitions. [2022-02-15 04:21:15,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-15 04:21:15,743 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 35 [2022-02-15 04:21:15,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:21:15,746 INFO L225 Difference]: With dead ends: 393 [2022-02-15 04:21:15,746 INFO L226 Difference]: Without dead ends: 207 [2022-02-15 04:21:15,750 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-02-15 04:21:15,756 INFO L933 BasicCegarLoop]: 181 mSDtfsCounter, 758 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 758 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-15 04:21:15,757 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [758 Valid, 198 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-15 04:21:15,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2022-02-15 04:21:15,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 207. [2022-02-15 04:21:15,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 202 states have (on average 1.5940594059405941) internal successors, (322), 202 states have internal predecessors, (322), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:21:15,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 326 transitions. [2022-02-15 04:21:15,791 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 326 transitions. Word has length 35 [2022-02-15 04:21:15,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:21:15,791 INFO L470 AbstractCegarLoop]: Abstraction has 207 states and 326 transitions. [2022-02-15 04:21:15,791 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:21:15,791 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 326 transitions. [2022-02-15 04:21:15,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-02-15 04:21:15,798 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:21:15,798 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:21:15,798 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-15 04:21:15,798 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:21:15,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:21:15,800 INFO L85 PathProgramCache]: Analyzing trace with hash -1441132167, now seen corresponding path program 1 times [2022-02-15 04:21:15,800 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:21:15,801 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [152921992] [2022-02-15 04:21:15,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:21:15,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:21:15,803 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:21:15,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:21:15,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:21:15,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:21:15,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:21:15,879 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:21:15,879 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [152921992] [2022-02-15 04:21:15,880 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [152921992] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:21:15,880 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:21:15,880 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-15 04:21:15,880 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821738181] [2022-02-15 04:21:15,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:21:15,880 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-15 04:21:15,881 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:21:15,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-15 04:21:15,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-15 04:21:15,882 INFO L87 Difference]: Start difference. First operand 207 states and 326 transitions. Second operand has 6 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:21:16,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:21:16,224 INFO L93 Difference]: Finished difference Result 402 states and 636 transitions. [2022-02-15 04:21:16,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-15 04:21:16,225 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 35 [2022-02-15 04:21:16,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:21:16,226 INFO L225 Difference]: With dead ends: 402 [2022-02-15 04:21:16,226 INFO L226 Difference]: Without dead ends: 209 [2022-02-15 04:21:16,227 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-02-15 04:21:16,236 INFO L933 BasicCegarLoop]: 181 mSDtfsCounter, 759 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 759 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-15 04:21:16,237 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [759 Valid, 198 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-15 04:21:16,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2022-02-15 04:21:16,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 207. [2022-02-15 04:21:16,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 202 states have (on average 1.5891089108910892) internal successors, (321), 202 states have internal predecessors, (321), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:21:16,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 325 transitions. [2022-02-15 04:21:16,264 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 325 transitions. Word has length 35 [2022-02-15 04:21:16,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:21:16,264 INFO L470 AbstractCegarLoop]: Abstraction has 207 states and 325 transitions. [2022-02-15 04:21:16,265 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:21:16,265 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 325 transitions. [2022-02-15 04:21:16,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-02-15 04:21:16,265 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:21:16,265 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:21:16,266 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-15 04:21:16,266 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:21:16,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:21:16,267 INFO L85 PathProgramCache]: Analyzing trace with hash 1028210496, now seen corresponding path program 1 times [2022-02-15 04:21:16,267 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:21:16,267 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [995965311] [2022-02-15 04:21:16,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:21:16,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:21:16,270 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:21:16,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:21:16,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:21:16,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:21:16,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:21:16,362 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:21:16,362 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [995965311] [2022-02-15 04:21:16,362 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [995965311] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:21:16,362 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:21:16,362 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-15 04:21:16,363 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51746279] [2022-02-15 04:21:16,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:21:16,363 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-15 04:21:16,363 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:21:16,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-15 04:21:16,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-15 04:21:16,364 INFO L87 Difference]: Start difference. First operand 207 states and 325 transitions. Second operand has 6 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:21:16,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:21:16,716 INFO L93 Difference]: Finished difference Result 410 states and 644 transitions. [2022-02-15 04:21:16,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-15 04:21:16,717 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 36 [2022-02-15 04:21:16,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:21:16,718 INFO L225 Difference]: With dead ends: 410 [2022-02-15 04:21:16,718 INFO L226 Difference]: Without dead ends: 217 [2022-02-15 04:21:16,719 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-02-15 04:21:16,719 INFO L933 BasicCegarLoop]: 180 mSDtfsCounter, 767 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 767 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-15 04:21:16,719 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [767 Valid, 197 Invalid, 389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-15 04:21:16,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2022-02-15 04:21:16,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 207. [2022-02-15 04:21:16,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 202 states have (on average 1.5792079207920793) internal successors, (319), 202 states have internal predecessors, (319), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:21:16,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 323 transitions. [2022-02-15 04:21:16,737 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 323 transitions. Word has length 36 [2022-02-15 04:21:16,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:21:16,738 INFO L470 AbstractCegarLoop]: Abstraction has 207 states and 323 transitions. [2022-02-15 04:21:16,739 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:21:16,739 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 323 transitions. [2022-02-15 04:21:16,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-02-15 04:21:16,740 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:21:16,740 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:21:16,740 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-15 04:21:16,741 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:21:16,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:21:16,741 INFO L85 PathProgramCache]: Analyzing trace with hash -2097728708, now seen corresponding path program 1 times [2022-02-15 04:21:16,741 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:21:16,741 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [478070944] [2022-02-15 04:21:16,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:21:16,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:21:16,743 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:21:16,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:21:16,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:21:16,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:21:16,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:21:16,799 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:21:16,799 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [478070944] [2022-02-15 04:21:16,799 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [478070944] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:21:16,799 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:21:16,799 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-15 04:21:16,799 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203371830] [2022-02-15 04:21:16,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:21:16,800 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-15 04:21:16,800 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:21:16,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-15 04:21:16,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-15 04:21:16,801 INFO L87 Difference]: Start difference. First operand 207 states and 323 transitions. Second operand has 6 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:21:17,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:21:17,151 INFO L93 Difference]: Finished difference Result 410 states and 640 transitions. [2022-02-15 04:21:17,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-15 04:21:17,152 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 37 [2022-02-15 04:21:17,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:21:17,153 INFO L225 Difference]: With dead ends: 410 [2022-02-15 04:21:17,153 INFO L226 Difference]: Without dead ends: 217 [2022-02-15 04:21:17,154 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-02-15 04:21:17,154 INFO L933 BasicCegarLoop]: 181 mSDtfsCounter, 767 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 767 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-15 04:21:17,155 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [767 Valid, 198 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-15 04:21:17,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2022-02-15 04:21:17,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 207. [2022-02-15 04:21:17,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 202 states have (on average 1.5693069306930694) internal successors, (317), 202 states have internal predecessors, (317), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:21:17,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 321 transitions. [2022-02-15 04:21:17,181 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 321 transitions. Word has length 37 [2022-02-15 04:21:17,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:21:17,181 INFO L470 AbstractCegarLoop]: Abstraction has 207 states and 321 transitions. [2022-02-15 04:21:17,181 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:21:17,182 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 321 transitions. [2022-02-15 04:21:17,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-02-15 04:21:17,182 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:21:17,182 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:21:17,182 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-02-15 04:21:17,182 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:21:17,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:21:17,183 INFO L85 PathProgramCache]: Analyzing trace with hash -1553278138, now seen corresponding path program 1 times [2022-02-15 04:21:17,183 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:21:17,183 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1649370409] [2022-02-15 04:21:17,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:21:17,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:21:17,185 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:21:17,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:21:17,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:21:17,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:21:17,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:21:17,232 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:21:17,232 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1649370409] [2022-02-15 04:21:17,232 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1649370409] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:21:17,232 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:21:17,232 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:21:17,232 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704618004] [2022-02-15 04:21:17,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:21:17,233 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:21:17,233 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:21:17,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:21:17,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:21:17,233 INFO L87 Difference]: Start difference. First operand 207 states and 321 transitions. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:21:17,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:21:17,576 INFO L93 Difference]: Finished difference Result 443 states and 687 transitions. [2022-02-15 04:21:17,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:21:17,577 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 38 [2022-02-15 04:21:17,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:21:17,578 INFO L225 Difference]: With dead ends: 443 [2022-02-15 04:21:17,578 INFO L226 Difference]: Without dead ends: 250 [2022-02-15 04:21:17,579 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-02-15 04:21:17,579 INFO L933 BasicCegarLoop]: 183 mSDtfsCounter, 482 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 482 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-15 04:21:17,580 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [482 Valid, 195 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 370 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-15 04:21:17,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2022-02-15 04:21:17,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 214. [2022-02-15 04:21:17,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 209 states have (on average 1.5645933014354068) internal successors, (327), 209 states have internal predecessors, (327), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:21:17,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 331 transitions. [2022-02-15 04:21:17,602 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 331 transitions. Word has length 38 [2022-02-15 04:21:17,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:21:17,603 INFO L470 AbstractCegarLoop]: Abstraction has 214 states and 331 transitions. [2022-02-15 04:21:17,603 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:21:17,603 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 331 transitions. [2022-02-15 04:21:17,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-02-15 04:21:17,603 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:21:17,603 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:21:17,604 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-02-15 04:21:17,604 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:21:17,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:21:17,604 INFO L85 PathProgramCache]: Analyzing trace with hash 839158341, now seen corresponding path program 1 times [2022-02-15 04:21:17,604 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:21:17,604 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [242214378] [2022-02-15 04:21:17,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:21:17,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:21:17,606 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:21:17,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:21:17,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:21:17,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:21:17,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:21:17,647 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:21:17,647 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [242214378] [2022-02-15 04:21:17,647 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [242214378] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:21:17,647 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:21:17,647 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-15 04:21:17,648 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791793437] [2022-02-15 04:21:17,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:21:17,648 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-15 04:21:17,648 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:21:17,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-15 04:21:17,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-15 04:21:17,649 INFO L87 Difference]: Start difference. First operand 214 states and 331 transitions. Second operand has 6 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:21:18,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:21:18,010 INFO L93 Difference]: Finished difference Result 424 states and 656 transitions. [2022-02-15 04:21:18,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-15 04:21:18,011 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 38 [2022-02-15 04:21:18,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:21:18,012 INFO L225 Difference]: With dead ends: 424 [2022-02-15 04:21:18,012 INFO L226 Difference]: Without dead ends: 224 [2022-02-15 04:21:18,013 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-02-15 04:21:18,013 INFO L933 BasicCegarLoop]: 182 mSDtfsCounter, 767 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 767 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-15 04:21:18,013 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [767 Valid, 199 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-15 04:21:18,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2022-02-15 04:21:18,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 214. [2022-02-15 04:21:18,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 209 states have (on average 1.555023923444976) internal successors, (325), 209 states have internal predecessors, (325), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:21:18,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 329 transitions. [2022-02-15 04:21:18,037 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 329 transitions. Word has length 38 [2022-02-15 04:21:18,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:21:18,037 INFO L470 AbstractCegarLoop]: Abstraction has 214 states and 329 transitions. [2022-02-15 04:21:18,038 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:21:18,038 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 329 transitions. [2022-02-15 04:21:18,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-15 04:21:18,038 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:21:18,038 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:21:18,038 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-02-15 04:21:18,039 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:21:18,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:21:18,039 INFO L85 PathProgramCache]: Analyzing trace with hash -1549869087, now seen corresponding path program 1 times [2022-02-15 04:21:18,039 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:21:18,039 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2096004377] [2022-02-15 04:21:18,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:21:18,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:21:18,041 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:21:18,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:21:18,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:21:18,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:21:18,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:21:18,080 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:21:18,085 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2096004377] [2022-02-15 04:21:18,086 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [2096004377] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:21:18,086 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:21:18,086 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-15 04:21:18,086 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389599512] [2022-02-15 04:21:18,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:21:18,086 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-15 04:21:18,086 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:21:18,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-15 04:21:18,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-15 04:21:18,087 INFO L87 Difference]: Start difference. First operand 214 states and 329 transitions. Second operand has 6 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:21:18,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:21:18,447 INFO L93 Difference]: Finished difference Result 424 states and 652 transitions. [2022-02-15 04:21:18,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-15 04:21:18,448 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 39 [2022-02-15 04:21:18,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:21:18,451 INFO L225 Difference]: With dead ends: 424 [2022-02-15 04:21:18,451 INFO L226 Difference]: Without dead ends: 224 [2022-02-15 04:21:18,452 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-02-15 04:21:18,453 INFO L933 BasicCegarLoop]: 183 mSDtfsCounter, 767 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 767 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-15 04:21:18,454 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [767 Valid, 200 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-15 04:21:18,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2022-02-15 04:21:18,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 214. [2022-02-15 04:21:18,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 209 states have (on average 1.5454545454545454) internal successors, (323), 209 states have internal predecessors, (323), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:21:18,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 327 transitions. [2022-02-15 04:21:18,485 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 327 transitions. Word has length 39 [2022-02-15 04:21:18,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:21:18,487 INFO L470 AbstractCegarLoop]: Abstraction has 214 states and 327 transitions. [2022-02-15 04:21:18,487 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:21:18,487 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 327 transitions. [2022-02-15 04:21:18,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-15 04:21:18,487 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:21:18,487 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:21:18,488 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-02-15 04:21:18,488 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:21:18,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:21:18,488 INFO L85 PathProgramCache]: Analyzing trace with hash 1904631677, now seen corresponding path program 1 times [2022-02-15 04:21:18,488 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:21:18,488 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1386361306] [2022-02-15 04:21:18,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:21:18,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:21:18,491 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:21:18,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:21:18,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:21:18,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:21:18,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:21:18,557 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:21:18,557 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1386361306] [2022-02-15 04:21:18,557 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1386361306] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:21:18,557 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:21:18,558 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-15 04:21:18,558 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577127901] [2022-02-15 04:21:18,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:21:18,558 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-15 04:21:18,558 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:21:18,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-15 04:21:18,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-15 04:21:18,559 INFO L87 Difference]: Start difference. First operand 214 states and 327 transitions. Second operand has 6 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:21:18,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:21:18,871 INFO L93 Difference]: Finished difference Result 419 states and 644 transitions. [2022-02-15 04:21:18,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-15 04:21:18,871 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 39 [2022-02-15 04:21:18,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:21:18,872 INFO L225 Difference]: With dead ends: 419 [2022-02-15 04:21:18,872 INFO L226 Difference]: Without dead ends: 219 [2022-02-15 04:21:18,873 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-02-15 04:21:18,873 INFO L933 BasicCegarLoop]: 187 mSDtfsCounter, 754 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 754 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-15 04:21:18,874 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [754 Valid, 204 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 351 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-15 04:21:18,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2022-02-15 04:21:18,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 216. [2022-02-15 04:21:18,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 211 states have (on average 1.5450236966824644) internal successors, (326), 211 states have internal predecessors, (326), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:21:18,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 330 transitions. [2022-02-15 04:21:18,900 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 330 transitions. Word has length 39 [2022-02-15 04:21:18,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:21:18,900 INFO L470 AbstractCegarLoop]: Abstraction has 216 states and 330 transitions. [2022-02-15 04:21:18,900 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:21:18,900 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 330 transitions. [2022-02-15 04:21:18,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-02-15 04:21:18,901 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:21:18,901 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:21:18,901 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-02-15 04:21:18,902 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:21:18,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:21:18,902 INFO L85 PathProgramCache]: Analyzing trace with hash -827017343, now seen corresponding path program 1 times [2022-02-15 04:21:18,902 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:21:18,902 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [154819718] [2022-02-15 04:21:18,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:21:18,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:21:18,904 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:21:18,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:21:18,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:21:18,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:21:18,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:21:18,958 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:21:18,958 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [154819718] [2022-02-15 04:21:18,958 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [154819718] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:21:18,958 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:21:18,958 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-15 04:21:18,959 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687673397] [2022-02-15 04:21:18,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:21:18,959 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-15 04:21:18,959 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:21:18,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-15 04:21:18,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-15 04:21:18,960 INFO L87 Difference]: Start difference. First operand 216 states and 330 transitions. Second operand has 6 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:21:19,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:21:19,346 INFO L93 Difference]: Finished difference Result 444 states and 678 transitions. [2022-02-15 04:21:19,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-15 04:21:19,346 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 40 [2022-02-15 04:21:19,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:21:19,348 INFO L225 Difference]: With dead ends: 444 [2022-02-15 04:21:19,348 INFO L226 Difference]: Without dead ends: 242 [2022-02-15 04:21:19,348 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-02-15 04:21:19,349 INFO L933 BasicCegarLoop]: 188 mSDtfsCounter, 754 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 754 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-15 04:21:19,349 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [754 Valid, 205 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-15 04:21:19,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2022-02-15 04:21:19,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 239. [2022-02-15 04:21:19,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 234 states have (on average 1.5256410256410255) internal successors, (357), 234 states have internal predecessors, (357), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:21:19,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 361 transitions. [2022-02-15 04:21:19,380 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 361 transitions. Word has length 40 [2022-02-15 04:21:19,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:21:19,380 INFO L470 AbstractCegarLoop]: Abstraction has 239 states and 361 transitions. [2022-02-15 04:21:19,380 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:21:19,381 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 361 transitions. [2022-02-15 04:21:19,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-02-15 04:21:19,381 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:21:19,381 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:21:19,381 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-02-15 04:21:19,381 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:21:19,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:21:19,382 INFO L85 PathProgramCache]: Analyzing trace with hash 341017417, now seen corresponding path program 1 times [2022-02-15 04:21:19,382 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:21:19,382 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1101004094] [2022-02-15 04:21:19,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:21:19,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:21:19,385 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:21:19,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:21:19,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:21:19,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:21:19,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:21:19,434 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:21:19,434 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1101004094] [2022-02-15 04:21:19,434 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1101004094] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:21:19,434 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:21:19,435 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-15 04:21:19,435 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505124078] [2022-02-15 04:21:19,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:21:19,435 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-15 04:21:19,435 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:21:19,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-15 04:21:19,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-15 04:21:19,436 INFO L87 Difference]: Start difference. First operand 239 states and 361 transitions. Second operand has 6 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:21:19,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:21:19,819 INFO L93 Difference]: Finished difference Result 493 states and 745 transitions. [2022-02-15 04:21:19,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-15 04:21:19,819 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 43 [2022-02-15 04:21:19,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:21:19,821 INFO L225 Difference]: With dead ends: 493 [2022-02-15 04:21:19,821 INFO L226 Difference]: Without dead ends: 268 [2022-02-15 04:21:19,821 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-02-15 04:21:19,822 INFO L933 BasicCegarLoop]: 203 mSDtfsCounter, 732 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 369 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 732 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-15 04:21:19,822 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [732 Valid, 220 Invalid, 410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 369 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-15 04:21:19,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2022-02-15 04:21:19,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 264. [2022-02-15 04:21:19,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 259 states have (on average 1.5096525096525097) internal successors, (391), 259 states have internal predecessors, (391), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:21:19,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 395 transitions. [2022-02-15 04:21:19,856 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 395 transitions. Word has length 43 [2022-02-15 04:21:19,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:21:19,856 INFO L470 AbstractCegarLoop]: Abstraction has 264 states and 395 transitions. [2022-02-15 04:21:19,857 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:21:19,857 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 395 transitions. [2022-02-15 04:21:19,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-02-15 04:21:19,857 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:21:19,857 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:21:19,857 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-02-15 04:21:19,858 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:21:19,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:21:19,858 INFO L85 PathProgramCache]: Analyzing trace with hash -1564538053, now seen corresponding path program 1 times [2022-02-15 04:21:19,858 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:21:19,858 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [595554817] [2022-02-15 04:21:19,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:21:19,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:21:19,860 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:21:19,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:21:19,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:21:19,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:21:19,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:21:19,896 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:21:19,896 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [595554817] [2022-02-15 04:21:19,897 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [595554817] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:21:19,897 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:21:19,897 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-15 04:21:19,897 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302925944] [2022-02-15 04:21:19,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:21:19,897 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-15 04:21:19,897 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:21:19,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-15 04:21:19,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-15 04:21:19,898 INFO L87 Difference]: Start difference. First operand 264 states and 395 transitions. Second operand has 6 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:21:20,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:21:20,276 INFO L93 Difference]: Finished difference Result 547 states and 818 transitions. [2022-02-15 04:21:20,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-15 04:21:20,276 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 43 [2022-02-15 04:21:20,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:21:20,278 INFO L225 Difference]: With dead ends: 547 [2022-02-15 04:21:20,278 INFO L226 Difference]: Without dead ends: 297 [2022-02-15 04:21:20,279 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-02-15 04:21:20,279 INFO L933 BasicCegarLoop]: 189 mSDtfsCounter, 768 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 768 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-15 04:21:20,280 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [768 Valid, 206 Invalid, 404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 360 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-15 04:21:20,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2022-02-15 04:21:20,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 292. [2022-02-15 04:21:20,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 287 states have (on average 1.494773519163763) internal successors, (429), 287 states have internal predecessors, (429), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:21:20,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 433 transitions. [2022-02-15 04:21:20,336 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 433 transitions. Word has length 43 [2022-02-15 04:21:20,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:21:20,336 INFO L470 AbstractCegarLoop]: Abstraction has 292 states and 433 transitions. [2022-02-15 04:21:20,337 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:21:20,337 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 433 transitions. [2022-02-15 04:21:20,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-02-15 04:21:20,337 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:21:20,338 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:21:20,338 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-02-15 04:21:20,338 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:21:20,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:21:20,338 INFO L85 PathProgramCache]: Analyzing trace with hash -570717011, now seen corresponding path program 1 times [2022-02-15 04:21:20,338 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:21:20,338 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [271324516] [2022-02-15 04:21:20,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:21:20,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:21:20,340 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:21:20,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:21:20,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:21:20,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:21:20,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:21:20,387 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:21:20,388 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [271324516] [2022-02-15 04:21:20,388 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [271324516] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:21:20,388 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:21:20,388 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-15 04:21:20,388 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609175236] [2022-02-15 04:21:20,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:21:20,388 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-15 04:21:20,388 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:21:20,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-15 04:21:20,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-15 04:21:20,389 INFO L87 Difference]: Start difference. First operand 292 states and 433 transitions. Second operand has 6 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:21:20,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:21:20,771 INFO L93 Difference]: Finished difference Result 575 states and 856 transitions. [2022-02-15 04:21:20,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-15 04:21:20,772 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 44 [2022-02-15 04:21:20,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:21:20,773 INFO L225 Difference]: With dead ends: 575 [2022-02-15 04:21:20,773 INFO L226 Difference]: Without dead ends: 297 [2022-02-15 04:21:20,774 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-02-15 04:21:20,775 INFO L933 BasicCegarLoop]: 189 mSDtfsCounter, 761 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 761 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-15 04:21:20,775 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [761 Valid, 206 Invalid, 400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 355 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-15 04:21:20,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2022-02-15 04:21:20,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 293. [2022-02-15 04:21:20,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 288 states have (on average 1.4895833333333333) internal successors, (429), 288 states have internal predecessors, (429), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:21:20,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 433 transitions. [2022-02-15 04:21:20,815 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 433 transitions. Word has length 44 [2022-02-15 04:21:20,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:21:20,816 INFO L470 AbstractCegarLoop]: Abstraction has 293 states and 433 transitions. [2022-02-15 04:21:20,816 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:21:20,816 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 433 transitions. [2022-02-15 04:21:20,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-02-15 04:21:20,816 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:21:20,816 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:21:20,817 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-02-15 04:21:20,817 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:21:20,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:21:20,817 INFO L85 PathProgramCache]: Analyzing trace with hash 1737605119, now seen corresponding path program 1 times [2022-02-15 04:21:20,817 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:21:20,817 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [203140157] [2022-02-15 04:21:20,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:21:20,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:21:20,819 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:21:20,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:21:20,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:21:20,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:21:20,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:21:20,856 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:21:20,856 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [203140157] [2022-02-15 04:21:20,857 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [203140157] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:21:20,857 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:21:20,857 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-15 04:21:20,857 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596278151] [2022-02-15 04:21:20,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:21:20,857 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-15 04:21:20,857 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:21:20,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-15 04:21:20,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-15 04:21:20,858 INFO L87 Difference]: Start difference. First operand 293 states and 433 transitions. Second operand has 6 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:21:21,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:21:21,244 INFO L93 Difference]: Finished difference Result 579 states and 859 transitions. [2022-02-15 04:21:21,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-15 04:21:21,244 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 44 [2022-02-15 04:21:21,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:21:21,246 INFO L225 Difference]: With dead ends: 579 [2022-02-15 04:21:21,246 INFO L226 Difference]: Without dead ends: 300 [2022-02-15 04:21:21,248 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-02-15 04:21:21,249 INFO L933 BasicCegarLoop]: 191 mSDtfsCounter, 763 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 763 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-15 04:21:21,249 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [763 Valid, 208 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 359 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-15 04:21:21,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2022-02-15 04:21:21,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 295. [2022-02-15 04:21:21,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 290 states have (on average 1.4896551724137932) internal successors, (432), 290 states have internal predecessors, (432), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:21:21,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 436 transitions. [2022-02-15 04:21:21,316 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 436 transitions. Word has length 44 [2022-02-15 04:21:21,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:21:21,317 INFO L470 AbstractCegarLoop]: Abstraction has 295 states and 436 transitions. [2022-02-15 04:21:21,318 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:21:21,318 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 436 transitions. [2022-02-15 04:21:21,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-02-15 04:21:21,318 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:21:21,318 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:21:21,318 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-02-15 04:21:21,318 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:21:21,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:21:21,320 INFO L85 PathProgramCache]: Analyzing trace with hash -970621315, now seen corresponding path program 1 times [2022-02-15 04:21:21,320 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:21:21,320 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1280083814] [2022-02-15 04:21:21,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:21:21,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:21:21,322 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:21:21,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:21:21,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:21:21,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:21:21,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:21:21,372 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:21:21,372 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1280083814] [2022-02-15 04:21:21,372 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1280083814] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:21:21,372 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:21:21,372 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-15 04:21:21,372 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863057652] [2022-02-15 04:21:21,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:21:21,373 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-15 04:21:21,373 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:21:21,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-15 04:21:21,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-15 04:21:21,373 INFO L87 Difference]: Start difference. First operand 295 states and 436 transitions. Second operand has 6 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:21:21,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:21:21,754 INFO L93 Difference]: Finished difference Result 615 states and 910 transitions. [2022-02-15 04:21:21,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-15 04:21:21,755 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 45 [2022-02-15 04:21:21,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:21:21,756 INFO L225 Difference]: With dead ends: 615 [2022-02-15 04:21:21,757 INFO L226 Difference]: Without dead ends: 334 [2022-02-15 04:21:21,757 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-02-15 04:21:21,758 INFO L933 BasicCegarLoop]: 192 mSDtfsCounter, 785 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 367 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 785 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-15 04:21:21,758 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [785 Valid, 209 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 367 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-15 04:21:21,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2022-02-15 04:21:21,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 325. [2022-02-15 04:21:21,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 320 states have (on average 1.475) internal successors, (472), 320 states have internal predecessors, (472), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:21:21,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 476 transitions. [2022-02-15 04:21:21,812 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 476 transitions. Word has length 45 [2022-02-15 04:21:21,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:21:21,812 INFO L470 AbstractCegarLoop]: Abstraction has 325 states and 476 transitions. [2022-02-15 04:21:21,812 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:21:21,813 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 476 transitions. [2022-02-15 04:21:21,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-02-15 04:21:21,813 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:21:21,813 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:21:21,813 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-02-15 04:21:21,814 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:21:21,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:21:21,814 INFO L85 PathProgramCache]: Analyzing trace with hash -957955839, now seen corresponding path program 1 times [2022-02-15 04:21:21,814 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:21:21,814 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1191269605] [2022-02-15 04:21:21,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:21:21,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:21:21,816 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:21:21,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:21:21,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:21:21,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:21:21,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:21:21,853 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:21:21,853 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1191269605] [2022-02-15 04:21:21,853 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1191269605] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:21:21,853 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:21:21,853 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-15 04:21:21,853 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827135962] [2022-02-15 04:21:21,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:21:21,853 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-15 04:21:21,854 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:21:21,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-15 04:21:21,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-15 04:21:21,854 INFO L87 Difference]: Start difference. First operand 325 states and 476 transitions. Second operand has 6 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:21:22,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:21:22,280 INFO L93 Difference]: Finished difference Result 649 states and 957 transitions. [2022-02-15 04:21:22,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-15 04:21:22,280 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 46 [2022-02-15 04:21:22,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:21:22,282 INFO L225 Difference]: With dead ends: 649 [2022-02-15 04:21:22,282 INFO L226 Difference]: Without dead ends: 338 [2022-02-15 04:21:22,283 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-02-15 04:21:22,283 INFO L933 BasicCegarLoop]: 192 mSDtfsCounter, 788 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 367 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 788 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-15 04:21:22,284 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [788 Valid, 209 Invalid, 420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 367 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-15 04:21:22,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2022-02-15 04:21:22,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 329. [2022-02-15 04:21:22,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 324 states have (on average 1.478395061728395) internal successors, (479), 324 states have internal predecessors, (479), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:21:22,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 483 transitions. [2022-02-15 04:21:22,343 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 483 transitions. Word has length 46 [2022-02-15 04:21:22,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:21:22,343 INFO L470 AbstractCegarLoop]: Abstraction has 329 states and 483 transitions. [2022-02-15 04:21:22,343 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:21:22,343 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 483 transitions. [2022-02-15 04:21:22,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-02-15 04:21:22,344 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:21:22,344 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:21:22,344 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-02-15 04:21:22,345 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:21:22,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:21:22,345 INFO L85 PathProgramCache]: Analyzing trace with hash 14351293, now seen corresponding path program 1 times [2022-02-15 04:21:22,345 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:21:22,345 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1684286926] [2022-02-15 04:21:22,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:21:22,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:21:22,347 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:21:22,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:21:22,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:21:22,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:21:22,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:21:22,381 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:21:22,381 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1684286926] [2022-02-15 04:21:22,382 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1684286926] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:21:22,382 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:21:22,382 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-15 04:21:22,382 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474173912] [2022-02-15 04:21:22,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:21:22,382 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-15 04:21:22,382 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:21:22,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-15 04:21:22,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-15 04:21:22,383 INFO L87 Difference]: Start difference. First operand 329 states and 483 transitions. Second operand has 6 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:21:22,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:21:22,777 INFO L93 Difference]: Finished difference Result 686 states and 1008 transitions. [2022-02-15 04:21:22,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-15 04:21:22,778 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 48 [2022-02-15 04:21:22,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:21:22,779 INFO L225 Difference]: With dead ends: 686 [2022-02-15 04:21:22,779 INFO L226 Difference]: Without dead ends: 371 [2022-02-15 04:21:22,780 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-02-15 04:21:22,781 INFO L933 BasicCegarLoop]: 192 mSDtfsCounter, 795 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 795 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-15 04:21:22,781 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [795 Valid, 209 Invalid, 422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 376 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-15 04:21:22,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2022-02-15 04:21:22,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 357. [2022-02-15 04:21:22,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 352 states have (on average 1.4602272727272727) internal successors, (514), 352 states have internal predecessors, (514), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:21:22,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 518 transitions. [2022-02-15 04:21:22,842 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 518 transitions. Word has length 48 [2022-02-15 04:21:22,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:21:22,842 INFO L470 AbstractCegarLoop]: Abstraction has 357 states and 518 transitions. [2022-02-15 04:21:22,842 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:21:22,842 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 518 transitions. [2022-02-15 04:21:22,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-02-15 04:21:22,843 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:21:22,843 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:21:22,843 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-02-15 04:21:22,843 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:21:22,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:21:22,844 INFO L85 PathProgramCache]: Analyzing trace with hash -447006304, now seen corresponding path program 1 times [2022-02-15 04:21:22,844 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:21:22,844 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1282216158] [2022-02-15 04:21:22,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:21:22,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:21:22,845 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:21:22,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:21:22,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:21:22,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:21:22,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:21:22,883 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:21:22,883 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1282216158] [2022-02-15 04:21:22,883 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1282216158] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:21:22,883 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:21:22,883 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-15 04:21:22,883 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945582352] [2022-02-15 04:21:22,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:21:22,884 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-15 04:21:22,884 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:21:22,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-15 04:21:22,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-15 04:21:22,884 INFO L87 Difference]: Start difference. First operand 357 states and 518 transitions. Second operand has 6 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:21:23,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:21:23,312 INFO L93 Difference]: Finished difference Result 734 states and 1062 transitions. [2022-02-15 04:21:23,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-15 04:21:23,312 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 48 [2022-02-15 04:21:23,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:21:23,314 INFO L225 Difference]: With dead ends: 734 [2022-02-15 04:21:23,314 INFO L226 Difference]: Without dead ends: 391 [2022-02-15 04:21:23,315 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-02-15 04:21:23,315 INFO L933 BasicCegarLoop]: 194 mSDtfsCounter, 759 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 759 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-15 04:21:23,315 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [759 Valid, 211 Invalid, 409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-15 04:21:23,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2022-02-15 04:21:23,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 389. [2022-02-15 04:21:23,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389 states, 384 states have (on average 1.4453125) internal successors, (555), 384 states have internal predecessors, (555), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:21:23,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 559 transitions. [2022-02-15 04:21:23,391 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 559 transitions. Word has length 48 [2022-02-15 04:21:23,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:21:23,391 INFO L470 AbstractCegarLoop]: Abstraction has 389 states and 559 transitions. [2022-02-15 04:21:23,392 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:21:23,392 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 559 transitions. [2022-02-15 04:21:23,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-02-15 04:21:23,392 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:21:23,392 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:21:23,393 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-02-15 04:21:23,393 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:21:23,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:21:23,393 INFO L85 PathProgramCache]: Analyzing trace with hash 1888205337, now seen corresponding path program 1 times [2022-02-15 04:21:23,393 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:21:23,393 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1966051551] [2022-02-15 04:21:23,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:21:23,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:21:23,395 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:21:23,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:21:23,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:21:23,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:21:23,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:21:23,429 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:21:23,430 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1966051551] [2022-02-15 04:21:23,430 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1966051551] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:21:23,430 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:21:23,430 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-15 04:21:23,430 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665064332] [2022-02-15 04:21:23,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:21:23,430 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-15 04:21:23,430 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:21:23,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-15 04:21:23,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-15 04:21:23,431 INFO L87 Difference]: Start difference. First operand 389 states and 559 transitions. Second operand has 6 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:21:23,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:21:23,809 INFO L93 Difference]: Finished difference Result 778 states and 1123 transitions. [2022-02-15 04:21:23,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-15 04:21:23,809 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 49 [2022-02-15 04:21:23,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:21:23,811 INFO L225 Difference]: With dead ends: 778 [2022-02-15 04:21:23,811 INFO L226 Difference]: Without dead ends: 403 [2022-02-15 04:21:23,811 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-02-15 04:21:23,812 INFO L933 BasicCegarLoop]: 193 mSDtfsCounter, 795 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 795 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-15 04:21:23,812 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [795 Valid, 210 Invalid, 425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 377 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-15 04:21:23,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2022-02-15 04:21:23,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 389. [2022-02-15 04:21:23,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389 states, 384 states have (on average 1.4375) internal successors, (552), 384 states have internal predecessors, (552), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:21:23,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 556 transitions. [2022-02-15 04:21:23,897 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 556 transitions. Word has length 49 [2022-02-15 04:21:23,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:21:23,897 INFO L470 AbstractCegarLoop]: Abstraction has 389 states and 556 transitions. [2022-02-15 04:21:23,898 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:21:23,898 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 556 transitions. [2022-02-15 04:21:23,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-02-15 04:21:23,898 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:21:23,898 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:21:23,898 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-02-15 04:21:23,899 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:21:23,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:21:23,899 INFO L85 PathProgramCache]: Analyzing trace with hash -396811972, now seen corresponding path program 1 times [2022-02-15 04:21:23,899 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:21:23,899 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1994181345] [2022-02-15 04:21:23,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:21:23,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:21:23,901 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:21:23,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:21:23,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:21:23,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:21:23,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:21:23,940 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:21:23,940 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1994181345] [2022-02-15 04:21:23,940 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1994181345] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:21:23,940 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:21:23,940 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-15 04:21:23,940 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502350132] [2022-02-15 04:21:23,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:21:23,941 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-15 04:21:23,941 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:21:23,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-15 04:21:23,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-15 04:21:23,941 INFO L87 Difference]: Start difference. First operand 389 states and 556 transitions. Second operand has 6 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:21:24,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:21:24,391 INFO L93 Difference]: Finished difference Result 768 states and 1100 transitions. [2022-02-15 04:21:24,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-15 04:21:24,392 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 49 [2022-02-15 04:21:24,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:21:24,393 INFO L225 Difference]: With dead ends: 768 [2022-02-15 04:21:24,394 INFO L226 Difference]: Without dead ends: 393 [2022-02-15 04:21:24,395 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-02-15 04:21:24,395 INFO L933 BasicCegarLoop]: 200 mSDtfsCounter, 746 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 746 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-15 04:21:24,395 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [746 Valid, 217 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-15 04:21:24,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2022-02-15 04:21:24,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 391. [2022-02-15 04:21:24,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 391 states, 386 states have (on average 1.4378238341968912) internal successors, (555), 386 states have internal predecessors, (555), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:21:24,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 559 transitions. [2022-02-15 04:21:24,463 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 559 transitions. Word has length 49 [2022-02-15 04:21:24,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:21:24,464 INFO L470 AbstractCegarLoop]: Abstraction has 391 states and 559 transitions. [2022-02-15 04:21:24,464 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:21:24,464 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 559 transitions. [2022-02-15 04:21:24,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-02-15 04:21:24,464 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:21:24,464 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:21:24,464 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-02-15 04:21:24,464 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:21:24,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:21:24,465 INFO L85 PathProgramCache]: Analyzing trace with hash 1088761570, now seen corresponding path program 1 times [2022-02-15 04:21:24,465 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:21:24,465 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2139419167] [2022-02-15 04:21:24,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:21:24,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:21:24,467 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:21:24,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:21:24,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:21:24,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:21:24,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:21:24,503 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:21:24,503 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2139419167] [2022-02-15 04:21:24,504 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [2139419167] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:21:24,504 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:21:24,504 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-15 04:21:24,504 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394611748] [2022-02-15 04:21:24,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:21:24,504 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-15 04:21:24,504 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:21:24,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-15 04:21:24,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-15 04:21:24,505 INFO L87 Difference]: Start difference. First operand 391 states and 559 transitions. Second operand has 6 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:21:24,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:21:24,954 INFO L93 Difference]: Finished difference Result 832 states and 1196 transitions. [2022-02-15 04:21:24,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-15 04:21:24,954 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 50 [2022-02-15 04:21:24,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:21:24,956 INFO L225 Difference]: With dead ends: 832 [2022-02-15 04:21:24,956 INFO L226 Difference]: Without dead ends: 455 [2022-02-15 04:21:24,957 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-02-15 04:21:24,958 INFO L933 BasicCegarLoop]: 196 mSDtfsCounter, 739 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 404 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 739 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-15 04:21:24,958 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [739 Valid, 213 Invalid, 453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 404 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-15 04:21:24,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455 states. [2022-02-15 04:21:25,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 453. [2022-02-15 04:21:25,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 448 states have (on average 1.4308035714285714) internal successors, (641), 448 states have internal predecessors, (641), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:21:25,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 645 transitions. [2022-02-15 04:21:25,052 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 645 transitions. Word has length 50 [2022-02-15 04:21:25,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:21:25,052 INFO L470 AbstractCegarLoop]: Abstraction has 453 states and 645 transitions. [2022-02-15 04:21:25,052 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:21:25,053 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 645 transitions. [2022-02-15 04:21:25,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-02-15 04:21:25,053 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:21:25,053 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:21:25,053 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-02-15 04:21:25,053 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:21:25,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:21:25,054 INFO L85 PathProgramCache]: Analyzing trace with hash -1090858659, now seen corresponding path program 1 times [2022-02-15 04:21:25,054 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:21:25,054 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1970781468] [2022-02-15 04:21:25,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:21:25,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:21:25,056 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:21:25,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:21:25,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:21:25,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:21:25,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:21:25,093 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:21:25,093 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1970781468] [2022-02-15 04:21:25,093 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1970781468] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:21:25,093 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:21:25,093 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-15 04:21:25,093 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418713503] [2022-02-15 04:21:25,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:21:25,093 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-15 04:21:25,093 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:21:25,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-15 04:21:25,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-15 04:21:25,094 INFO L87 Difference]: Start difference. First operand 453 states and 645 transitions. Second operand has 6 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:21:25,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:21:25,579 INFO L93 Difference]: Finished difference Result 944 states and 1344 transitions. [2022-02-15 04:21:25,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-15 04:21:25,579 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 50 [2022-02-15 04:21:25,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:21:25,581 INFO L225 Difference]: With dead ends: 944 [2022-02-15 04:21:25,581 INFO L226 Difference]: Without dead ends: 505 [2022-02-15 04:21:25,582 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-02-15 04:21:25,583 INFO L933 BasicCegarLoop]: 195 mSDtfsCounter, 809 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 809 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-15 04:21:25,583 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [809 Valid, 212 Invalid, 437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 377 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-15 04:21:25,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2022-02-15 04:21:25,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 495. [2022-02-15 04:21:25,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 495 states, 490 states have (on average 1.4224489795918367) internal successors, (697), 490 states have internal predecessors, (697), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:21:25,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 701 transitions. [2022-02-15 04:21:25,670 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 701 transitions. Word has length 50 [2022-02-15 04:21:25,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:21:25,670 INFO L470 AbstractCegarLoop]: Abstraction has 495 states and 701 transitions. [2022-02-15 04:21:25,670 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:21:25,670 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 701 transitions. [2022-02-15 04:21:25,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-02-15 04:21:25,670 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:21:25,671 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] [2022-02-15 04:21:25,671 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-02-15 04:21:25,671 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:21:25,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:21:25,671 INFO L85 PathProgramCache]: Analyzing trace with hash -163662636, now seen corresponding path program 1 times [2022-02-15 04:21:25,671 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:21:25,671 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [478886906] [2022-02-15 04:21:25,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:21:25,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:21:25,673 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:21:25,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:21:25,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:21:25,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:21:25,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:21:25,706 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:21:25,706 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [478886906] [2022-02-15 04:21:25,707 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [478886906] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:21:25,707 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:21:25,707 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-15 04:21:25,707 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475652249] [2022-02-15 04:21:25,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:21:25,707 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-15 04:21:25,707 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:21:25,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-15 04:21:25,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-15 04:21:25,708 INFO L87 Difference]: Start difference. First operand 495 states and 701 transitions. Second operand has 6 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:21:26,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:21:26,162 INFO L93 Difference]: Finished difference Result 995 states and 1416 transitions. [2022-02-15 04:21:26,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-15 04:21:26,163 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 51 [2022-02-15 04:21:26,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:21:26,166 INFO L225 Difference]: With dead ends: 995 [2022-02-15 04:21:26,166 INFO L226 Difference]: Without dead ends: 514 [2022-02-15 04:21:26,167 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-02-15 04:21:26,167 INFO L933 BasicCegarLoop]: 195 mSDtfsCounter, 812 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 812 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-15 04:21:26,168 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [812 Valid, 212 Invalid, 439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 377 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-15 04:21:26,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2022-02-15 04:21:26,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 504. [2022-02-15 04:21:26,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 504 states, 499 states have (on average 1.4288577154308617) internal successors, (713), 499 states have internal predecessors, (713), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:21:26,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 717 transitions. [2022-02-15 04:21:26,278 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 717 transitions. Word has length 51 [2022-02-15 04:21:26,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:21:26,278 INFO L470 AbstractCegarLoop]: Abstraction has 504 states and 717 transitions. [2022-02-15 04:21:26,279 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:21:26,279 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 717 transitions. [2022-02-15 04:21:26,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-02-15 04:21:26,279 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:21:26,280 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:21:26,280 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-02-15 04:21:26,280 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:21:26,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:21:26,280 INFO L85 PathProgramCache]: Analyzing trace with hash -1175453866, now seen corresponding path program 1 times [2022-02-15 04:21:26,280 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:21:26,280 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1614716253] [2022-02-15 04:21:26,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:21:26,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:21:26,282 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:21:26,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:21:26,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:21:26,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:21:26,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:21:26,318 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:21:26,320 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1614716253] [2022-02-15 04:21:26,320 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1614716253] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:21:26,320 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:21:26,320 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-15 04:21:26,320 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480173365] [2022-02-15 04:21:26,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:21:26,320 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-15 04:21:26,320 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:21:26,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-15 04:21:26,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-15 04:21:26,321 INFO L87 Difference]: Start difference. First operand 504 states and 717 transitions. Second operand has 6 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:21:26,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:21:26,781 INFO L93 Difference]: Finished difference Result 1045 states and 1487 transitions. [2022-02-15 04:21:26,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-15 04:21:26,781 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 64 [2022-02-15 04:21:26,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:21:26,784 INFO L225 Difference]: With dead ends: 1045 [2022-02-15 04:21:26,784 INFO L226 Difference]: Without dead ends: 555 [2022-02-15 04:21:26,785 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-02-15 04:21:26,786 INFO L933 BasicCegarLoop]: 196 mSDtfsCounter, 807 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 807 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-15 04:21:26,786 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [807 Valid, 213 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 377 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-15 04:21:26,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2022-02-15 04:21:26,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 549. [2022-02-15 04:21:26,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 549 states, 544 states have (on average 1.4209558823529411) internal successors, (773), 544 states have internal predecessors, (773), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:21:26,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 777 transitions. [2022-02-15 04:21:26,929 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 777 transitions. Word has length 64 [2022-02-15 04:21:26,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:21:26,929 INFO L470 AbstractCegarLoop]: Abstraction has 549 states and 777 transitions. [2022-02-15 04:21:26,930 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:21:26,930 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 777 transitions. [2022-02-15 04:21:26,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-02-15 04:21:26,930 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:21:26,931 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:21:26,931 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-02-15 04:21:26,931 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:21:26,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:21:26,931 INFO L85 PathProgramCache]: Analyzing trace with hash 1954305357, now seen corresponding path program 1 times [2022-02-15 04:21:26,931 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:21:26,931 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2078287835] [2022-02-15 04:21:26,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:21:26,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:21:26,933 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:21:26,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:21:26,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:21:26,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:21:26,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:21:26,976 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:21:26,976 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2078287835] [2022-02-15 04:21:26,976 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [2078287835] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:21:26,976 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:21:26,977 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-15 04:21:26,977 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225881013] [2022-02-15 04:21:26,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:21:26,977 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-15 04:21:26,977 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:21:26,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-15 04:21:26,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-15 04:21:26,979 INFO L87 Difference]: Start difference. First operand 549 states and 777 transitions. Second operand has 6 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:21:27,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:21:27,467 INFO L93 Difference]: Finished difference Result 1094 states and 1553 transitions. [2022-02-15 04:21:27,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-15 04:21:27,467 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2022-02-15 04:21:27,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:21:27,469 INFO L225 Difference]: With dead ends: 1094 [2022-02-15 04:21:27,469 INFO L226 Difference]: Without dead ends: 557 [2022-02-15 04:21:27,470 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-02-15 04:21:27,471 INFO L933 BasicCegarLoop]: 194 mSDtfsCounter, 815 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 815 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-15 04:21:27,471 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [815 Valid, 211 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 374 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-15 04:21:27,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2022-02-15 04:21:27,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 551. [2022-02-15 04:21:27,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 546 states have (on average 1.4212454212454213) internal successors, (776), 546 states have internal predecessors, (776), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:21:27,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 780 transitions. [2022-02-15 04:21:27,588 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 780 transitions. Word has length 65 [2022-02-15 04:21:27,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:21:27,588 INFO L470 AbstractCegarLoop]: Abstraction has 551 states and 780 transitions. [2022-02-15 04:21:27,589 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:21:27,589 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 780 transitions. [2022-02-15 04:21:27,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-02-15 04:21:27,589 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:21:27,590 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:21:27,590 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-02-15 04:21:27,590 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:21:27,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:21:27,590 INFO L85 PathProgramCache]: Analyzing trace with hash 1606826053, now seen corresponding path program 1 times [2022-02-15 04:21:27,590 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:21:27,591 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [98224841] [2022-02-15 04:21:27,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY