/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/AutomizerCTransformed.xml -s ../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf -i ../../../trunk/examples/svcomp/openssl-simplified/s3_clnt_3.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-d966a43 [2022-01-31 16:16:18,134 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-31 16:16:18,136 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-31 16:16:18,193 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-31 16:16:18,194 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-31 16:16:18,196 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-31 16:16:18,199 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-31 16:16:18,201 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-31 16:16:18,203 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-31 16:16:18,207 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-31 16:16:18,208 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-31 16:16:18,210 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-31 16:16:18,210 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-31 16:16:18,212 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-31 16:16:18,213 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-31 16:16:18,216 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-31 16:16:18,217 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-31 16:16:18,218 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-31 16:16:18,219 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-31 16:16:18,225 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-31 16:16:18,226 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-31 16:16:18,227 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-31 16:16:18,229 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-31 16:16:18,230 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-31 16:16:18,236 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-31 16:16:18,239 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-31 16:16:18,240 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-31 16:16:18,241 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-31 16:16:18,242 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-31 16:16:18,243 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-31 16:16:18,243 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-31 16:16:18,244 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-31 16:16:18,244 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-31 16:16:18,244 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-31 16:16:18,245 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-31 16:16:18,245 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-31 16:16:18,246 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-01-31 16:16:18,258 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-31 16:16:18,259 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-31 16:16:18,260 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-31 16:16:18,260 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-31 16:16:18,260 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-31 16:16:18,261 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-31 16:16:18,261 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-31 16:16:18,261 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-31 16:16:18,261 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-31 16:16:18,261 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-31 16:16:18,262 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-31 16:16:18,262 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-31 16:16:18,262 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-31 16:16:18,263 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-31 16:16:18,263 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-31 16:16:18,263 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-31 16:16:18,263 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-31 16:16:18,263 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-31 16:16:18,263 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 16:16:18,263 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-31 16:16:18,264 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-31 16:16:18,264 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-31 16:16:18,265 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_JORDAN WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-31 16:16:18,492 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-31 16:16:18,510 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-31 16:16:18,512 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-31 16:16:18,513 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-31 16:16:18,514 INFO L275 PluginConnector]: CDTParser initialized [2022-01-31 16:16:18,515 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl-simplified/s3_clnt_3.cil-1.c [2022-01-31 16:16:18,580 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ef2e9961/f2a507fd3ba84cdba3e0069419bc57c6/FLAG8d630da53 [2022-01-31 16:16:18,979 INFO L306 CDTParser]: Found 1 translation units. [2022-01-31 16:16:18,980 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl-simplified/s3_clnt_3.cil-1.c [2022-01-31 16:16:19,002 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ef2e9961/f2a507fd3ba84cdba3e0069419bc57c6/FLAG8d630da53 [2022-01-31 16:16:19,019 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ef2e9961/f2a507fd3ba84cdba3e0069419bc57c6 [2022-01-31 16:16:19,021 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-31 16:16:19,024 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-31 16:16:19,028 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-31 16:16:19,029 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-31 16:16:19,032 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-31 16:16:19,032 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 04:16:19" (1/1) ... [2022-01-31 16:16:19,033 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f6837c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:16:19, skipping insertion in model container [2022-01-31 16:16:19,034 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 04:16:19" (1/1) ... [2022-01-31 16:16:19,040 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-31 16:16:19,088 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-31 16:16:19,289 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/openssl-simplified/s3_clnt_3.cil-1.c[37413,37426] [2022-01-31 16:16:19,296 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 16:16:19,303 INFO L203 MainTranslator]: Completed pre-run [2022-01-31 16:16:19,347 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/openssl-simplified/s3_clnt_3.cil-1.c[37413,37426] [2022-01-31 16:16:19,349 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 16:16:19,361 INFO L208 MainTranslator]: Completed translation [2022-01-31 16:16:19,361 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:16:19 WrapperNode [2022-01-31 16:16:19,361 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-31 16:16:19,362 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-31 16:16:19,362 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-31 16:16:19,363 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-31 16:16:19,388 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:16:19" (1/1) ... [2022-01-31 16:16:19,388 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:16:19" (1/1) ... [2022-01-31 16:16:19,396 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:16:19" (1/1) ... [2022-01-31 16:16:19,396 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:16:19" (1/1) ... [2022-01-31 16:16:19,416 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:16:19" (1/1) ... [2022-01-31 16:16:19,426 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:16:19" (1/1) ... [2022-01-31 16:16:19,428 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:16:19" (1/1) ... [2022-01-31 16:16:19,432 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-31 16:16:19,433 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-31 16:16:19,433 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-31 16:16:19,433 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-31 16:16:19,438 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:16:19" (1/1) ... [2022-01-31 16:16:19,446 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 16:16:19,455 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 16:16:19,467 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-31 16:16:19,469 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-31 16:16:19,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-01-31 16:16:19,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-31 16:16:19,494 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-01-31 16:16:19,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_connect [2022-01-31 16:16:19,494 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-01-31 16:16:19,494 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-01-31 16:16:19,499 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-01-31 16:16:19,499 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-01-31 16:16:19,500 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-31 16:16:19,500 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-01-31 16:16:19,500 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_connect [2022-01-31 16:16:19,500 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-01-31 16:16:19,500 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-01-31 16:16:19,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-31 16:16:19,500 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-31 16:16:19,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-31 16:16:19,500 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-31 16:16:19,501 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-31 16:16:19,592 INFO L234 CfgBuilder]: Building ICFG [2022-01-31 16:16:19,601 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-31 16:16:19,687 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-31 16:16:19,990 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2022-01-31 16:16:19,990 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2022-01-31 16:16:19,993 INFO L275 CfgBuilder]: Performing block encoding [2022-01-31 16:16:20,000 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-31 16:16:20,001 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-31 16:16:20,003 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 04:16:20 BoogieIcfgContainer [2022-01-31 16:16:20,003 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-31 16:16:20,004 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-31 16:16:20,004 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-31 16:16:20,005 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-31 16:16:20,010 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 04:16:20" (1/1) ... [2022-01-31 16:16:20,045 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 31.01 04:16:20 BasicIcfg [2022-01-31 16:16:20,045 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-31 16:16:20,047 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-31 16:16:20,047 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-31 16:16:20,051 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-31 16:16:20,051 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 04:16:19" (1/4) ... [2022-01-31 16:16:20,052 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ac6146e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 04:16:20, skipping insertion in model container [2022-01-31 16:16:20,052 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:16:19" (2/4) ... [2022-01-31 16:16:20,052 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ac6146e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 04:16:20, skipping insertion in model container [2022-01-31 16:16:20,053 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 04:16:20" (3/4) ... [2022-01-31 16:16:20,053 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ac6146e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.01 04:16:20, skipping insertion in model container [2022-01-31 16:16:20,053 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 31.01 04:16:20" (4/4) ... [2022-01-31 16:16:20,055 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_clnt_3.cil-1.cJordan [2022-01-31 16:16:20,064 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-01-31 16:16:20,065 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-31 16:16:20,122 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-31 16:16:20,131 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=ForwardPredicates, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, 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=FAST_UPR [2022-01-31 16:16:20,132 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-31 16:16:20,153 INFO L276 IsEmpty]: Start isEmpty. Operand has 133 states, 125 states have (on average 1.72) internal successors, (215), 126 states have internal predecessors, (215), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-01-31 16:16:20,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-01-31 16:16:20,176 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:16:20,177 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:16:20,178 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:16:20,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:16:20,184 INFO L85 PathProgramCache]: Analyzing trace with hash 1711602328, now seen corresponding path program 1 times [2022-01-31 16:16:20,192 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:16:20,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802995420] [2022-01-31 16:16:20,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:20,195 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:16:20,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:20,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:16:20,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:20,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 16:16:20,547 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:16:20,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802995420] [2022-01-31 16:16:20,548 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802995420] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:16:20,548 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:16:20,548 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-31 16:16:20,550 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640147446] [2022-01-31 16:16:20,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:16:20,555 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-31 16:16:20,556 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:16:20,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-31 16:16:20,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:16:20,593 INFO L87 Difference]: Start difference. First operand has 133 states, 125 states have (on average 1.72) internal successors, (215), 126 states have internal predecessors, (215), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 6 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:21,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:16:21,120 INFO L93 Difference]: Finished difference Result 166 states and 272 transitions. [2022-01-31 16:16:21,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-31 16:16:21,125 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2022-01-31 16:16:21,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:16:21,133 INFO L225 Difference]: With dead ends: 166 [2022-01-31 16:16:21,134 INFO L226 Difference]: Without dead ends: 143 [2022-01-31 16:16:21,135 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-01-31 16:16:21,140 INFO L933 BasicCegarLoop]: 148 mSDtfsCounter, 684 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 684 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-31 16:16:21,145 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [684 Valid, 169 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 334 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-31 16:16:21,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2022-01-31 16:16:21,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 138. [2022-01-31 16:16:21,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 133 states have (on average 1.5714285714285714) internal successors, (209), 133 states have internal predecessors, (209), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:21,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 213 transitions. [2022-01-31 16:16:21,185 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 213 transitions. Word has length 30 [2022-01-31 16:16:21,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:16:21,185 INFO L470 AbstractCegarLoop]: Abstraction has 138 states and 213 transitions. [2022-01-31 16:16:21,185 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:21,186 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 213 transitions. [2022-01-31 16:16:21,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-01-31 16:16:21,187 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:16:21,187 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:16:21,187 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-31 16:16:21,188 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:16:21,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:16:21,188 INFO L85 PathProgramCache]: Analyzing trace with hash 1521013668, now seen corresponding path program 1 times [2022-01-31 16:16:21,188 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:16:21,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833111519] [2022-01-31 16:16:21,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:21,189 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:16:21,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:21,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:16:21,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:21,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 16:16:21,329 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:16:21,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833111519] [2022-01-31 16:16:21,330 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [833111519] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:16:21,330 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:16:21,330 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-31 16:16:21,330 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508217182] [2022-01-31 16:16:21,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:16:21,334 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-31 16:16:21,335 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:16:21,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-31 16:16:21,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:16:21,336 INFO L87 Difference]: Start difference. First operand 138 states and 213 transitions. Second operand has 6 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:21,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:16:21,682 INFO L93 Difference]: Finished difference Result 167 states and 261 transitions. [2022-01-31 16:16:21,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-31 16:16:21,682 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 31 [2022-01-31 16:16:21,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:16:21,687 INFO L225 Difference]: With dead ends: 167 [2022-01-31 16:16:21,687 INFO L226 Difference]: Without dead ends: 167 [2022-01-31 16:16:21,688 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-01-31 16:16:21,689 INFO L933 BasicCegarLoop]: 106 mSDtfsCounter, 548 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 548 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-31 16:16:21,689 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [548 Valid, 123 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-31 16:16:21,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2022-01-31 16:16:21,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 162. [2022-01-31 16:16:21,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 157 states have (on average 1.605095541401274) internal successors, (252), 157 states have internal predecessors, (252), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:21,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 256 transitions. [2022-01-31 16:16:21,706 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 256 transitions. Word has length 31 [2022-01-31 16:16:21,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:16:21,706 INFO L470 AbstractCegarLoop]: Abstraction has 162 states and 256 transitions. [2022-01-31 16:16:21,706 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:21,707 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 256 transitions. [2022-01-31 16:16:21,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-01-31 16:16:21,708 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:16:21,708 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:16:21,709 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-31 16:16:21,709 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:16:21,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:16:21,710 INFO L85 PathProgramCache]: Analyzing trace with hash -1810389985, now seen corresponding path program 1 times [2022-01-31 16:16:21,710 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:16:21,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872838602] [2022-01-31 16:16:21,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:21,711 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:16:21,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:21,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:16:21,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:21,789 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 16:16:21,789 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:16:21,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872838602] [2022-01-31 16:16:21,789 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872838602] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:16:21,790 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:16:21,790 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-31 16:16:21,790 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487217367] [2022-01-31 16:16:21,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:16:21,791 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-31 16:16:21,791 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:16:21,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-31 16:16:21,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:16:21,792 INFO L87 Difference]: Start difference. First operand 162 states and 256 transitions. Second operand has 6 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:22,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:16:22,060 INFO L93 Difference]: Finished difference Result 186 states and 296 transitions. [2022-01-31 16:16:22,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-31 16:16:22,061 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 50 [2022-01-31 16:16:22,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:16:22,063 INFO L225 Difference]: With dead ends: 186 [2022-01-31 16:16:22,063 INFO L226 Difference]: Without dead ends: 186 [2022-01-31 16:16:22,063 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-01-31 16:16:22,064 INFO L933 BasicCegarLoop]: 106 mSDtfsCounter, 537 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 537 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 16:16:22,065 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [537 Valid, 123 Invalid, 303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-31 16:16:22,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2022-01-31 16:16:22,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 183. [2022-01-31 16:16:22,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 178 states have (on average 1.6179775280898876) internal successors, (288), 178 states have internal predecessors, (288), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:22,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 292 transitions. [2022-01-31 16:16:22,084 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 292 transitions. Word has length 50 [2022-01-31 16:16:22,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:16:22,085 INFO L470 AbstractCegarLoop]: Abstraction has 183 states and 292 transitions. [2022-01-31 16:16:22,085 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:22,085 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 292 transitions. [2022-01-31 16:16:22,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-01-31 16:16:22,087 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:16:22,087 INFO L514 BasicCegarLoop]: trace histogram [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] [2022-01-31 16:16:22,087 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-31 16:16:22,088 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:16:22,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:16:22,088 INFO L85 PathProgramCache]: Analyzing trace with hash 465010892, now seen corresponding path program 1 times [2022-01-31 16:16:22,088 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:16:22,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278333974] [2022-01-31 16:16:22,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:22,089 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:16:22,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:22,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:16:22,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:22,152 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 16:16:22,152 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:16:22,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278333974] [2022-01-31 16:16:22,153 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278333974] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:16:22,153 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:16:22,153 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-31 16:16:22,153 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955575787] [2022-01-31 16:16:22,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:16:22,154 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-31 16:16:22,154 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:16:22,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-31 16:16:22,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:16:22,171 INFO L87 Difference]: Start difference. First operand 183 states and 292 transitions. Second operand has 6 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:22,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:16:22,436 INFO L93 Difference]: Finished difference Result 186 states and 294 transitions. [2022-01-31 16:16:22,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-31 16:16:22,436 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 51 [2022-01-31 16:16:22,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:16:22,438 INFO L225 Difference]: With dead ends: 186 [2022-01-31 16:16:22,438 INFO L226 Difference]: Without dead ends: 186 [2022-01-31 16:16:22,438 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-01-31 16:16:22,439 INFO L933 BasicCegarLoop]: 106 mSDtfsCounter, 540 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 540 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 16:16:22,440 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [540 Valid, 123 Invalid, 305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-31 16:16:22,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2022-01-31 16:16:22,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 183. [2022-01-31 16:16:22,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 178 states have (on average 1.6067415730337078) internal successors, (286), 178 states have internal predecessors, (286), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:22,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 290 transitions. [2022-01-31 16:16:22,448 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 290 transitions. Word has length 51 [2022-01-31 16:16:22,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:16:22,448 INFO L470 AbstractCegarLoop]: Abstraction has 183 states and 290 transitions. [2022-01-31 16:16:22,449 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:22,449 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 290 transitions. [2022-01-31 16:16:22,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-01-31 16:16:22,451 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:16:22,451 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:16:22,451 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-31 16:16:22,451 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:16:22,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:16:22,452 INFO L85 PathProgramCache]: Analyzing trace with hash -409944273, now seen corresponding path program 1 times [2022-01-31 16:16:22,452 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:16:22,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444845814] [2022-01-31 16:16:22,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:22,452 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:16:22,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:22,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:16:22,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:22,512 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-01-31 16:16:22,512 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:16:22,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444845814] [2022-01-31 16:16:22,513 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444845814] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:16:22,513 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:16:22,513 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-31 16:16:22,513 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702904711] [2022-01-31 16:16:22,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:16:22,514 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-31 16:16:22,514 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:16:22,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-31 16:16:22,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:16:22,515 INFO L87 Difference]: Start difference. First operand 183 states and 290 transitions. Second operand has 6 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:22,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:16:22,774 INFO L93 Difference]: Finished difference Result 207 states and 328 transitions. [2022-01-31 16:16:22,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-31 16:16:22,774 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 66 [2022-01-31 16:16:22,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:16:22,776 INFO L225 Difference]: With dead ends: 207 [2022-01-31 16:16:22,776 INFO L226 Difference]: Without dead ends: 207 [2022-01-31 16:16:22,776 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-01-31 16:16:22,777 INFO L933 BasicCegarLoop]: 107 mSDtfsCounter, 535 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 535 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 16:16:22,778 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [535 Valid, 124 Invalid, 303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-31 16:16:22,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2022-01-31 16:16:22,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 203. [2022-01-31 16:16:22,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 198 states have (on average 1.606060606060606) internal successors, (318), 198 states have internal predecessors, (318), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:22,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 322 transitions. [2022-01-31 16:16:22,785 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 322 transitions. Word has length 66 [2022-01-31 16:16:22,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:16:22,785 INFO L470 AbstractCegarLoop]: Abstraction has 203 states and 322 transitions. [2022-01-31 16:16:22,786 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:22,786 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 322 transitions. [2022-01-31 16:16:22,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-01-31 16:16:22,788 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:16:22,788 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:16:22,788 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-31 16:16:22,788 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:16:22,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:16:22,789 INFO L85 PathProgramCache]: Analyzing trace with hash -1177930087, now seen corresponding path program 1 times [2022-01-31 16:16:22,789 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:16:22,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013410622] [2022-01-31 16:16:22,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:22,790 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:16:22,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:22,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:16:22,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:22,845 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-01-31 16:16:22,845 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:16:22,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013410622] [2022-01-31 16:16:22,846 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013410622] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:16:22,846 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:16:22,846 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-31 16:16:22,846 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681913353] [2022-01-31 16:16:22,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:16:22,851 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-31 16:16:22,851 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:16:22,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-31 16:16:22,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:16:22,852 INFO L87 Difference]: Start difference. First operand 203 states and 322 transitions. Second operand has 6 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:23,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:16:23,120 INFO L93 Difference]: Finished difference Result 207 states and 325 transitions. [2022-01-31 16:16:23,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-31 16:16:23,123 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 67 [2022-01-31 16:16:23,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:16:23,125 INFO L225 Difference]: With dead ends: 207 [2022-01-31 16:16:23,125 INFO L226 Difference]: Without dead ends: 207 [2022-01-31 16:16:23,125 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-01-31 16:16:23,126 INFO L933 BasicCegarLoop]: 106 mSDtfsCounter, 538 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 538 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 16:16:23,126 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [538 Valid, 123 Invalid, 303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-31 16:16:23,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2022-01-31 16:16:23,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 203. [2022-01-31 16:16:23,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 198 states have (on average 1.5909090909090908) internal successors, (315), 198 states have internal predecessors, (315), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:23,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 319 transitions. [2022-01-31 16:16:23,134 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 319 transitions. Word has length 67 [2022-01-31 16:16:23,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:16:23,136 INFO L470 AbstractCegarLoop]: Abstraction has 203 states and 319 transitions. [2022-01-31 16:16:23,136 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:23,136 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 319 transitions. [2022-01-31 16:16:23,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-01-31 16:16:23,138 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:16:23,138 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:16:23,138 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-31 16:16:23,139 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:16:23,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:16:23,139 INFO L85 PathProgramCache]: Analyzing trace with hash 2089443154, now seen corresponding path program 1 times [2022-01-31 16:16:23,139 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:16:23,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128068971] [2022-01-31 16:16:23,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:23,141 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:16:23,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:23,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:16:23,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:23,211 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 16:16:23,211 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:16:23,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128068971] [2022-01-31 16:16:23,212 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128068971] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:16:23,212 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:16:23,212 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-31 16:16:23,212 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019517305] [2022-01-31 16:16:23,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:16:23,212 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-31 16:16:23,213 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:16:23,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-31 16:16:23,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:16:23,213 INFO L87 Difference]: Start difference. First operand 203 states and 319 transitions. Second operand has 6 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:23,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:16:23,497 INFO L93 Difference]: Finished difference Result 245 states and 390 transitions. [2022-01-31 16:16:23,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-31 16:16:23,498 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 68 [2022-01-31 16:16:23,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:16:23,500 INFO L225 Difference]: With dead ends: 245 [2022-01-31 16:16:23,500 INFO L226 Difference]: Without dead ends: 244 [2022-01-31 16:16:23,500 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-01-31 16:16:23,501 INFO L933 BasicCegarLoop]: 110 mSDtfsCounter, 572 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 572 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-31 16:16:23,501 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [572 Valid, 127 Invalid, 343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-31 16:16:23,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2022-01-31 16:16:23,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 244. [2022-01-31 16:16:23,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 239 states have (on average 1.610878661087866) internal successors, (385), 239 states have internal predecessors, (385), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:23,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 389 transitions. [2022-01-31 16:16:23,508 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 389 transitions. Word has length 68 [2022-01-31 16:16:23,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:16:23,508 INFO L470 AbstractCegarLoop]: Abstraction has 244 states and 389 transitions. [2022-01-31 16:16:23,508 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:23,508 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 389 transitions. [2022-01-31 16:16:23,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-01-31 16:16:23,509 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:16:23,509 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:16:23,509 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-31 16:16:23,509 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:16:23,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:16:23,510 INFO L85 PathProgramCache]: Analyzing trace with hash -1036864402, now seen corresponding path program 1 times [2022-01-31 16:16:23,510 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:16:23,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710025080] [2022-01-31 16:16:23,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:23,511 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:16:23,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:23,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:16:23,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:23,596 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-01-31 16:16:23,596 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:16:23,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710025080] [2022-01-31 16:16:23,597 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710025080] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:16:23,597 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:16:23,597 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-31 16:16:23,597 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188155941] [2022-01-31 16:16:23,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:16:23,598 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-31 16:16:23,598 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:16:23,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-31 16:16:23,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:16:23,598 INFO L87 Difference]: Start difference. First operand 244 states and 389 transitions. Second operand has 6 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:23,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:16:23,848 INFO L93 Difference]: Finished difference Result 266 states and 422 transitions. [2022-01-31 16:16:23,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-31 16:16:23,849 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (3), 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 83 [2022-01-31 16:16:23,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:16:23,850 INFO L225 Difference]: With dead ends: 266 [2022-01-31 16:16:23,850 INFO L226 Difference]: Without dead ends: 266 [2022-01-31 16:16:23,851 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-01-31 16:16:23,851 INFO L933 BasicCegarLoop]: 106 mSDtfsCounter, 531 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 268 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 531 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 16:16:23,852 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [531 Valid, 123 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 268 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-31 16:16:23,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2022-01-31 16:16:23,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 261. [2022-01-31 16:16:23,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.6015625) internal successors, (410), 256 states have internal predecessors, (410), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:23,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 414 transitions. [2022-01-31 16:16:23,859 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 414 transitions. Word has length 83 [2022-01-31 16:16:23,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:16:23,860 INFO L470 AbstractCegarLoop]: Abstraction has 261 states and 414 transitions. [2022-01-31 16:16:23,860 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:23,860 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 414 transitions. [2022-01-31 16:16:23,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-01-31 16:16:23,861 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:16:23,861 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:16:23,861 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-31 16:16:23,861 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:16:23,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:16:23,862 INFO L85 PathProgramCache]: Analyzing trace with hash 1054051491, now seen corresponding path program 1 times [2022-01-31 16:16:23,862 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:16:23,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990362429] [2022-01-31 16:16:23,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:23,862 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:16:23,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:23,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:16:23,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:23,931 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-01-31 16:16:23,931 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:16:23,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990362429] [2022-01-31 16:16:23,931 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990362429] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:16:23,931 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:16:23,931 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-31 16:16:23,932 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325919270] [2022-01-31 16:16:23,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:16:23,932 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-31 16:16:23,932 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:16:23,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-31 16:16:23,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:16:23,933 INFO L87 Difference]: Start difference. First operand 261 states and 414 transitions. Second operand has 6 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:24,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:16:24,183 INFO L93 Difference]: Finished difference Result 266 states and 417 transitions. [2022-01-31 16:16:24,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-31 16:16:24,188 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (3), 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 84 [2022-01-31 16:16:24,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:16:24,189 INFO L225 Difference]: With dead ends: 266 [2022-01-31 16:16:24,189 INFO L226 Difference]: Without dead ends: 266 [2022-01-31 16:16:24,190 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-01-31 16:16:24,190 INFO L933 BasicCegarLoop]: 106 mSDtfsCounter, 536 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 536 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 16:16:24,191 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [536 Valid, 123 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-31 16:16:24,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2022-01-31 16:16:24,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 261. [2022-01-31 16:16:24,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.58203125) internal successors, (405), 256 states have internal predecessors, (405), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:24,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 409 transitions. [2022-01-31 16:16:24,197 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 409 transitions. Word has length 84 [2022-01-31 16:16:24,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:16:24,197 INFO L470 AbstractCegarLoop]: Abstraction has 261 states and 409 transitions. [2022-01-31 16:16:24,197 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:24,197 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 409 transitions. [2022-01-31 16:16:24,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-01-31 16:16:24,198 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:16:24,198 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:16:24,199 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-31 16:16:24,199 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:16:24,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:16:24,202 INFO L85 PathProgramCache]: Analyzing trace with hash -61911791, now seen corresponding path program 1 times [2022-01-31 16:16:24,202 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:16:24,202 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311153765] [2022-01-31 16:16:24,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:24,203 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:16:24,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:24,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:16:24,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:24,279 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2022-01-31 16:16:24,279 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:16:24,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311153765] [2022-01-31 16:16:24,279 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311153765] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:16:24,279 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:16:24,280 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-31 16:16:24,280 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887533315] [2022-01-31 16:16:24,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:16:24,280 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-31 16:16:24,280 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:16:24,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-31 16:16:24,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:16:24,281 INFO L87 Difference]: Start difference. First operand 261 states and 409 transitions. Second operand has 6 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:24,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:16:24,519 INFO L93 Difference]: Finished difference Result 279 states and 433 transitions. [2022-01-31 16:16:24,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-31 16:16:24,519 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (3), 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 97 [2022-01-31 16:16:24,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:16:24,521 INFO L225 Difference]: With dead ends: 279 [2022-01-31 16:16:24,521 INFO L226 Difference]: Without dead ends: 279 [2022-01-31 16:16:24,521 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-01-31 16:16:24,522 INFO L933 BasicCegarLoop]: 118 mSDtfsCounter, 497 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 497 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 16:16:24,522 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [497 Valid, 135 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 273 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-31 16:16:24,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2022-01-31 16:16:24,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 276. [2022-01-31 16:16:24,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276 states, 271 states have (on average 1.5682656826568266) internal successors, (425), 271 states have internal predecessors, (425), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:24,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 429 transitions. [2022-01-31 16:16:24,531 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 429 transitions. Word has length 97 [2022-01-31 16:16:24,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:16:24,531 INFO L470 AbstractCegarLoop]: Abstraction has 276 states and 429 transitions. [2022-01-31 16:16:24,532 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:24,532 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 429 transitions. [2022-01-31 16:16:24,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-01-31 16:16:24,533 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:16:24,533 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:16:24,534 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-31 16:16:24,534 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:16:24,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:16:24,535 INFO L85 PathProgramCache]: Analyzing trace with hash -816635385, now seen corresponding path program 1 times [2022-01-31 16:16:24,535 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:16:24,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073730961] [2022-01-31 16:16:24,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:24,535 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:16:24,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:24,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:16:24,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:24,585 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2022-01-31 16:16:24,586 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:16:24,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073730961] [2022-01-31 16:16:24,586 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073730961] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:16:24,586 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:16:24,586 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-31 16:16:24,586 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617060644] [2022-01-31 16:16:24,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:16:24,587 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-31 16:16:24,587 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:16:24,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-31 16:16:24,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:16:24,588 INFO L87 Difference]: Start difference. First operand 276 states and 429 transitions. Second operand has 6 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:24,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:16:24,815 INFO L93 Difference]: Finished difference Result 279 states and 427 transitions. [2022-01-31 16:16:24,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-31 16:16:24,816 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (3), 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 98 [2022-01-31 16:16:24,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:16:24,817 INFO L225 Difference]: With dead ends: 279 [2022-01-31 16:16:24,817 INFO L226 Difference]: Without dead ends: 279 [2022-01-31 16:16:24,817 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-01-31 16:16:24,818 INFO L933 BasicCegarLoop]: 106 mSDtfsCounter, 522 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 522 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 16:16:24,818 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [522 Valid, 123 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-31 16:16:24,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2022-01-31 16:16:24,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 276. [2022-01-31 16:16:24,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276 states, 271 states have (on average 1.5461254612546125) internal successors, (419), 271 states have internal predecessors, (419), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:24,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 423 transitions. [2022-01-31 16:16:24,824 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 423 transitions. Word has length 98 [2022-01-31 16:16:24,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:16:24,825 INFO L470 AbstractCegarLoop]: Abstraction has 276 states and 423 transitions. [2022-01-31 16:16:24,825 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:24,825 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 423 transitions. [2022-01-31 16:16:24,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-01-31 16:16:24,826 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:16:24,826 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:16:24,826 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-31 16:16:24,826 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:16:24,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:16:24,827 INFO L85 PathProgramCache]: Analyzing trace with hash 1044267923, now seen corresponding path program 1 times [2022-01-31 16:16:24,827 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:16:24,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432091493] [2022-01-31 16:16:24,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:24,827 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:16:24,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:24,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:16:24,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:24,874 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-01-31 16:16:24,875 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:16:24,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432091493] [2022-01-31 16:16:24,875 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [432091493] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:16:24,875 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:16:24,875 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-31 16:16:24,875 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945627201] [2022-01-31 16:16:24,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:16:24,876 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-31 16:16:24,876 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:16:24,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-31 16:16:24,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:16:24,876 INFO L87 Difference]: Start difference. First operand 276 states and 423 transitions. Second operand has 6 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:25,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:16:25,143 INFO L93 Difference]: Finished difference Result 328 states and 509 transitions. [2022-01-31 16:16:25,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-31 16:16:25,144 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (3), 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 104 [2022-01-31 16:16:25,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:16:25,145 INFO L225 Difference]: With dead ends: 328 [2022-01-31 16:16:25,146 INFO L226 Difference]: Without dead ends: 328 [2022-01-31 16:16:25,146 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-01-31 16:16:25,146 INFO L933 BasicCegarLoop]: 112 mSDtfsCounter, 559 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 281 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 559 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 16:16:25,147 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [559 Valid, 129 Invalid, 333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 281 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-31 16:16:25,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2022-01-31 16:16:25,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 326. [2022-01-31 16:16:25,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 326 states, 321 states have (on average 1.5669781931464175) internal successors, (503), 321 states have internal predecessors, (503), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:25,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 507 transitions. [2022-01-31 16:16:25,156 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 507 transitions. Word has length 104 [2022-01-31 16:16:25,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:16:25,157 INFO L470 AbstractCegarLoop]: Abstraction has 326 states and 507 transitions. [2022-01-31 16:16:25,157 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:25,157 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 507 transitions. [2022-01-31 16:16:25,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-01-31 16:16:25,160 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:16:25,161 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:16:25,161 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-31 16:16:25,161 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:16:25,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:16:25,162 INFO L85 PathProgramCache]: Analyzing trace with hash 73282143, now seen corresponding path program 1 times [2022-01-31 16:16:25,162 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:16:25,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840201107] [2022-01-31 16:16:25,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:25,162 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:16:25,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:25,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:16:25,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:25,229 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-01-31 16:16:25,230 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:16:25,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840201107] [2022-01-31 16:16:25,230 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840201107] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:16:25,230 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:16:25,230 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-31 16:16:25,230 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201053557] [2022-01-31 16:16:25,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:16:25,231 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-31 16:16:25,231 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:16:25,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-31 16:16:25,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:16:25,232 INFO L87 Difference]: Start difference. First operand 326 states and 507 transitions. Second operand has 6 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:25,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:16:25,509 INFO L93 Difference]: Finished difference Result 329 states and 509 transitions. [2022-01-31 16:16:25,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-31 16:16:25,510 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 105 [2022-01-31 16:16:25,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:16:25,511 INFO L225 Difference]: With dead ends: 329 [2022-01-31 16:16:25,511 INFO L226 Difference]: Without dead ends: 329 [2022-01-31 16:16:25,511 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-01-31 16:16:25,512 INFO L933 BasicCegarLoop]: 111 mSDtfsCounter, 569 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 569 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 16:16:25,512 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [569 Valid, 128 Invalid, 330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-31 16:16:25,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2022-01-31 16:16:25,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 327. [2022-01-31 16:16:25,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 322 states have (on average 1.562111801242236) internal successors, (503), 322 states have internal predecessors, (503), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:25,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 507 transitions. [2022-01-31 16:16:25,517 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 507 transitions. Word has length 105 [2022-01-31 16:16:25,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:16:25,518 INFO L470 AbstractCegarLoop]: Abstraction has 327 states and 507 transitions. [2022-01-31 16:16:25,518 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:25,518 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 507 transitions. [2022-01-31 16:16:25,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-31 16:16:25,519 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:16:25,519 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:16:25,519 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-31 16:16:25,519 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:16:25,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:16:25,519 INFO L85 PathProgramCache]: Analyzing trace with hash -1546418708, now seen corresponding path program 1 times [2022-01-31 16:16:25,519 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:16:25,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876599535] [2022-01-31 16:16:25,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:25,520 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:16:25,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:25,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:16:25,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:25,559 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-01-31 16:16:25,559 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:16:25,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876599535] [2022-01-31 16:16:25,560 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876599535] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:16:25,560 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:16:25,560 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:16:25,560 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756858834] [2022-01-31 16:16:25,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:16:25,560 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:16:25,560 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:16:25,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:16:25,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:16:25,561 INFO L87 Difference]: Start difference. First operand 327 states and 507 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 3 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:25,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:16:25,710 INFO L93 Difference]: Finished difference Result 638 states and 989 transitions. [2022-01-31 16:16:25,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:16:25,711 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 3 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 109 [2022-01-31 16:16:25,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:16:25,713 INFO L225 Difference]: With dead ends: 638 [2022-01-31 16:16:25,714 INFO L226 Difference]: Without dead ends: 638 [2022-01-31 16:16:25,714 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:16:25,714 INFO L933 BasicCegarLoop]: 295 mSDtfsCounter, 306 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 306 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-31 16:16:25,715 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [306 Valid, 302 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-31 16:16:25,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 638 states. [2022-01-31 16:16:25,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 638 to 638. [2022-01-31 16:16:25,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 638 states, 633 states have (on average 1.55608214849921) internal successors, (985), 633 states have internal predecessors, (985), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:25,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 638 states to 638 states and 989 transitions. [2022-01-31 16:16:25,727 INFO L78 Accepts]: Start accepts. Automaton has 638 states and 989 transitions. Word has length 109 [2022-01-31 16:16:25,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:16:25,727 INFO L470 AbstractCegarLoop]: Abstraction has 638 states and 989 transitions. [2022-01-31 16:16:25,728 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 3 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:25,728 INFO L276 IsEmpty]: Start isEmpty. Operand 638 states and 989 transitions. [2022-01-31 16:16:25,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-31 16:16:25,729 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:16:25,729 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:16:25,729 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-31 16:16:25,729 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:16:25,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:16:25,730 INFO L85 PathProgramCache]: Analyzing trace with hash 691753828, now seen corresponding path program 1 times [2022-01-31 16:16:25,730 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:16:25,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52688530] [2022-01-31 16:16:25,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:25,730 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:16:25,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:25,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:16:25,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:25,765 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2022-01-31 16:16:25,766 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:16:25,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52688530] [2022-01-31 16:16:25,766 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52688530] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:16:25,766 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:16:25,766 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:16:25,766 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617630340] [2022-01-31 16:16:25,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:16:25,766 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:16:25,767 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:16:25,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:16:25,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:16:25,767 INFO L87 Difference]: Start difference. First operand 638 states and 989 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:25,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:16:25,932 INFO L93 Difference]: Finished difference Result 926 states and 1436 transitions. [2022-01-31 16:16:25,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:16:25,933 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 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 110 [2022-01-31 16:16:25,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:16:25,936 INFO L225 Difference]: With dead ends: 926 [2022-01-31 16:16:25,937 INFO L226 Difference]: Without dead ends: 926 [2022-01-31 16:16:25,937 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:16:25,937 INFO L933 BasicCegarLoop]: 304 mSDtfsCounter, 298 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 298 SdHoareTripleChecker+Valid, 311 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-31 16:16:25,938 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [298 Valid, 311 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-31 16:16:25,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 926 states. [2022-01-31 16:16:25,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 926 to 926. [2022-01-31 16:16:25,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 926 states, 921 states have (on average 1.5548317046688382) internal successors, (1432), 921 states have internal predecessors, (1432), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:25,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 926 states to 926 states and 1436 transitions. [2022-01-31 16:16:25,957 INFO L78 Accepts]: Start accepts. Automaton has 926 states and 1436 transitions. Word has length 110 [2022-01-31 16:16:25,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:16:25,957 INFO L470 AbstractCegarLoop]: Abstraction has 926 states and 1436 transitions. [2022-01-31 16:16:25,957 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:25,957 INFO L276 IsEmpty]: Start isEmpty. Operand 926 states and 1436 transitions. [2022-01-31 16:16:25,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-31 16:16:25,959 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:16:25,959 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:16:25,959 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-31 16:16:25,960 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:16:25,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:16:25,960 INFO L85 PathProgramCache]: Analyzing trace with hash 1111270659, now seen corresponding path program 1 times [2022-01-31 16:16:25,960 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:16:25,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978307362] [2022-01-31 16:16:25,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:25,960 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:16:25,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:25,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:16:25,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:25,996 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2022-01-31 16:16:25,997 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:16:25,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978307362] [2022-01-31 16:16:25,997 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1978307362] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:16:25,997 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:16:25,997 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:16:25,997 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285451471] [2022-01-31 16:16:25,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:16:25,998 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:16:25,998 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:16:25,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:16:25,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:16:25,998 INFO L87 Difference]: Start difference. First operand 926 states and 1436 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 3 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:26,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:16:26,164 INFO L93 Difference]: Finished difference Result 1219 states and 1888 transitions. [2022-01-31 16:16:26,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:16:26,164 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 3 states have internal predecessors, (65), 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 110 [2022-01-31 16:16:26,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:16:26,169 INFO L225 Difference]: With dead ends: 1219 [2022-01-31 16:16:26,169 INFO L226 Difference]: Without dead ends: 1219 [2022-01-31 16:16:26,169 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:16:26,170 INFO L933 BasicCegarLoop]: 189 mSDtfsCounter, 418 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 418 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-31 16:16:26,170 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [418 Valid, 196 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-31 16:16:26,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1219 states. [2022-01-31 16:16:26,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1219 to 1219. [2022-01-31 16:16:26,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1219 states, 1214 states have (on average 1.5518945634266885) internal successors, (1884), 1214 states have internal predecessors, (1884), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:26,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1219 states to 1219 states and 1888 transitions. [2022-01-31 16:16:26,194 INFO L78 Accepts]: Start accepts. Automaton has 1219 states and 1888 transitions. Word has length 110 [2022-01-31 16:16:26,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:16:26,194 INFO L470 AbstractCegarLoop]: Abstraction has 1219 states and 1888 transitions. [2022-01-31 16:16:26,195 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 3 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:26,195 INFO L276 IsEmpty]: Start isEmpty. Operand 1219 states and 1888 transitions. [2022-01-31 16:16:26,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-01-31 16:16:26,196 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:16:26,197 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:16:26,197 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-31 16:16:26,197 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:16:26,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:16:26,197 INFO L85 PathProgramCache]: Analyzing trace with hash -723676683, now seen corresponding path program 1 times [2022-01-31 16:16:26,198 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:16:26,198 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688490593] [2022-01-31 16:16:26,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:26,198 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:16:26,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:26,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:16:26,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:26,243 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2022-01-31 16:16:26,243 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:16:26,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688490593] [2022-01-31 16:16:26,243 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688490593] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:16:26,243 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:16:26,243 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:16:26,244 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987908778] [2022-01-31 16:16:26,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:16:26,244 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:16:26,244 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:16:26,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:16:26,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:16:26,245 INFO L87 Difference]: Start difference. First operand 1219 states and 1888 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 3 states have internal predecessors, (72), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:26,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:16:26,415 INFO L93 Difference]: Finished difference Result 1531 states and 2376 transitions. [2022-01-31 16:16:26,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:16:26,416 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 3 states have internal predecessors, (72), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 111 [2022-01-31 16:16:26,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:16:26,422 INFO L225 Difference]: With dead ends: 1531 [2022-01-31 16:16:26,422 INFO L226 Difference]: Without dead ends: 1531 [2022-01-31 16:16:26,422 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:16:26,423 INFO L933 BasicCegarLoop]: 162 mSDtfsCounter, 449 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 449 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-31 16:16:26,423 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [449 Valid, 169 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-31 16:16:26,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1531 states. [2022-01-31 16:16:26,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1531 to 1531. [2022-01-31 16:16:26,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1531 states, 1526 states have (on average 1.5543905635648756) internal successors, (2372), 1526 states have internal predecessors, (2372), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:26,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1531 states to 1531 states and 2376 transitions. [2022-01-31 16:16:26,454 INFO L78 Accepts]: Start accepts. Automaton has 1531 states and 2376 transitions. Word has length 111 [2022-01-31 16:16:26,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:16:26,454 INFO L470 AbstractCegarLoop]: Abstraction has 1531 states and 2376 transitions. [2022-01-31 16:16:26,455 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 3 states have internal predecessors, (72), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:26,455 INFO L276 IsEmpty]: Start isEmpty. Operand 1531 states and 2376 transitions. [2022-01-31 16:16:26,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-01-31 16:16:26,458 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:16:26,458 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 8, 8, 8, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:16:26,459 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-31 16:16:26,459 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:16:26,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:16:26,459 INFO L85 PathProgramCache]: Analyzing trace with hash -982594376, now seen corresponding path program 1 times [2022-01-31 16:16:26,459 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:16:26,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591798469] [2022-01-31 16:16:26,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:26,460 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:16:26,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:26,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:16:26,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:26,534 INFO L134 CoverageAnalysis]: Checked inductivity of 409 backedges. 248 proven. 0 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2022-01-31 16:16:26,534 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:16:26,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591798469] [2022-01-31 16:16:26,534 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591798469] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:16:26,534 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:16:26,534 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:16:26,535 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497197942] [2022-01-31 16:16:26,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:16:26,535 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:16:26,535 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:16:26,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:16:26,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:16:26,536 INFO L87 Difference]: Start difference. First operand 1531 states and 2376 transitions. Second operand has 4 states, 4 states have (on average 24.25) internal successors, (97), 3 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:26,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:16:26,728 INFO L93 Difference]: Finished difference Result 1534 states and 2167 transitions. [2022-01-31 16:16:26,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:16:26,728 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 3 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 171 [2022-01-31 16:16:26,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:16:26,734 INFO L225 Difference]: With dead ends: 1534 [2022-01-31 16:16:26,734 INFO L226 Difference]: Without dead ends: 1405 [2022-01-31 16:16:26,734 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:16:26,735 INFO L933 BasicCegarLoop]: 166 mSDtfsCounter, 280 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 16:16:26,735 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [280 Valid, 173 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-31 16:16:26,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1405 states. [2022-01-31 16:16:26,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1405 to 1357. [2022-01-31 16:16:26,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1357 states, 1352 states have (on average 1.4497041420118344) internal successors, (1960), 1352 states have internal predecessors, (1960), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:26,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1357 states to 1357 states and 1964 transitions. [2022-01-31 16:16:26,765 INFO L78 Accepts]: Start accepts. Automaton has 1357 states and 1964 transitions. Word has length 171 [2022-01-31 16:16:26,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:16:26,766 INFO L470 AbstractCegarLoop]: Abstraction has 1357 states and 1964 transitions. [2022-01-31 16:16:26,766 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 3 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:26,766 INFO L276 IsEmpty]: Start isEmpty. Operand 1357 states and 1964 transitions. [2022-01-31 16:16:26,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-01-31 16:16:26,769 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:16:26,769 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 8, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:16:26,770 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-31 16:16:26,770 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:16:26,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:16:26,770 INFO L85 PathProgramCache]: Analyzing trace with hash 1551429465, now seen corresponding path program 1 times [2022-01-31 16:16:26,770 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:16:26,771 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793030044] [2022-01-31 16:16:26,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:26,771 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:16:26,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:26,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:16:26,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:26,827 INFO L134 CoverageAnalysis]: Checked inductivity of 424 backedges. 263 proven. 0 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2022-01-31 16:16:26,827 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:16:26,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793030044] [2022-01-31 16:16:26,828 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793030044] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:16:26,828 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:16:26,828 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:16:26,828 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337216627] [2022-01-31 16:16:26,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:16:26,829 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:16:26,829 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:16:26,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:16:26,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:16:26,829 INFO L87 Difference]: Start difference. First operand 1357 states and 1964 transitions. Second operand has 4 states, 4 states have (on average 24.5) internal successors, (98), 3 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:27,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:16:27,027 INFO L93 Difference]: Finished difference Result 1422 states and 2023 transitions. [2022-01-31 16:16:27,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:16:27,028 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 3 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 172 [2022-01-31 16:16:27,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:16:27,033 INFO L225 Difference]: With dead ends: 1422 [2022-01-31 16:16:27,033 INFO L226 Difference]: Without dead ends: 1422 [2022-01-31 16:16:27,034 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:16:27,034 INFO L933 BasicCegarLoop]: 191 mSDtfsCounter, 245 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 16:16:27,035 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [245 Valid, 198 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-31 16:16:27,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1422 states. [2022-01-31 16:16:27,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1422 to 1364. [2022-01-31 16:16:27,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1364 states, 1359 states have (on average 1.4275202354672554) internal successors, (1940), 1359 states have internal predecessors, (1940), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:27,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1364 states to 1364 states and 1944 transitions. [2022-01-31 16:16:27,061 INFO L78 Accepts]: Start accepts. Automaton has 1364 states and 1944 transitions. Word has length 172 [2022-01-31 16:16:27,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:16:27,061 INFO L470 AbstractCegarLoop]: Abstraction has 1364 states and 1944 transitions. [2022-01-31 16:16:27,061 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 3 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:27,062 INFO L276 IsEmpty]: Start isEmpty. Operand 1364 states and 1944 transitions. [2022-01-31 16:16:27,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2022-01-31 16:16:27,065 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:16:27,065 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 9, 9, 9, 9, 9, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:16:27,065 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-31 16:16:27,065 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:16:27,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:16:27,066 INFO L85 PathProgramCache]: Analyzing trace with hash 1524959551, now seen corresponding path program 1 times [2022-01-31 16:16:27,066 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:16:27,066 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804972668] [2022-01-31 16:16:27,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:27,066 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:16:27,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:27,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:16:27,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:27,108 INFO L134 CoverageAnalysis]: Checked inductivity of 525 backedges. 325 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2022-01-31 16:16:27,109 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:16:27,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804972668] [2022-01-31 16:16:27,109 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1804972668] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:16:27,109 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:16:27,109 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:16:27,109 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293819600] [2022-01-31 16:16:27,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:16:27,110 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:16:27,110 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:16:27,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:16:27,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:16:27,110 INFO L87 Difference]: Start difference. First operand 1364 states and 1944 transitions. Second operand has 4 states, 4 states have (on average 26.0) internal successors, (104), 3 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:27,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:16:27,302 INFO L93 Difference]: Finished difference Result 1482 states and 2054 transitions. [2022-01-31 16:16:27,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:16:27,303 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 3 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 191 [2022-01-31 16:16:27,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:16:27,308 INFO L225 Difference]: With dead ends: 1482 [2022-01-31 16:16:27,308 INFO L226 Difference]: Without dead ends: 1414 [2022-01-31 16:16:27,308 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:16:27,309 INFO L933 BasicCegarLoop]: 165 mSDtfsCounter, 287 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 287 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 16:16:27,309 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [287 Valid, 172 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-31 16:16:27,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1414 states. [2022-01-31 16:16:27,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1414 to 1364. [2022-01-31 16:16:27,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1364 states, 1359 states have (on average 1.4157468727005151) internal successors, (1924), 1359 states have internal predecessors, (1924), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:27,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1364 states to 1364 states and 1928 transitions. [2022-01-31 16:16:27,335 INFO L78 Accepts]: Start accepts. Automaton has 1364 states and 1928 transitions. Word has length 191 [2022-01-31 16:16:27,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:16:27,335 INFO L470 AbstractCegarLoop]: Abstraction has 1364 states and 1928 transitions. [2022-01-31 16:16:27,335 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 3 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:27,335 INFO L276 IsEmpty]: Start isEmpty. Operand 1364 states and 1928 transitions. [2022-01-31 16:16:27,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2022-01-31 16:16:27,339 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:16:27,339 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 10, 10, 10, 10, 10, 8, 8, 6, 6, 4, 4, 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] [2022-01-31 16:16:27,339 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-31 16:16:27,339 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:16:27,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:16:27,340 INFO L85 PathProgramCache]: Analyzing trace with hash -137545226, now seen corresponding path program 1 times [2022-01-31 16:16:27,340 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:16:27,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818967897] [2022-01-31 16:16:27,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:27,340 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:16:27,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:27,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:16:27,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:27,391 INFO L134 CoverageAnalysis]: Checked inductivity of 657 backedges. 402 proven. 0 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2022-01-31 16:16:27,392 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:16:27,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818967897] [2022-01-31 16:16:27,392 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818967897] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:16:27,392 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:16:27,392 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:16:27,392 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549384289] [2022-01-31 16:16:27,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:16:27,393 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:16:27,393 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:16:27,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:16:27,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:16:27,394 INFO L87 Difference]: Start difference. First operand 1364 states and 1928 transitions. Second operand has 4 states, 4 states have (on average 27.5) internal successors, (110), 3 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:27,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:16:27,584 INFO L93 Difference]: Finished difference Result 1572 states and 2168 transitions. [2022-01-31 16:16:27,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:16:27,585 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 3 states have internal predecessors, (110), 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 212 [2022-01-31 16:16:27,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:16:27,590 INFO L225 Difference]: With dead ends: 1572 [2022-01-31 16:16:27,590 INFO L226 Difference]: Without dead ends: 1512 [2022-01-31 16:16:27,591 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:16:27,591 INFO L933 BasicCegarLoop]: 165 mSDtfsCounter, 289 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 16:16:27,591 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [289 Valid, 172 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-31 16:16:27,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2022-01-31 16:16:27,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1464. [2022-01-31 16:16:27,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1464 states, 1459 states have (on average 1.4009595613433858) internal successors, (2044), 1459 states have internal predecessors, (2044), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:27,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1464 states to 1464 states and 2048 transitions. [2022-01-31 16:16:27,619 INFO L78 Accepts]: Start accepts. Automaton has 1464 states and 2048 transitions. Word has length 212 [2022-01-31 16:16:27,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:16:27,619 INFO L470 AbstractCegarLoop]: Abstraction has 1464 states and 2048 transitions. [2022-01-31 16:16:27,619 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 3 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:27,620 INFO L276 IsEmpty]: Start isEmpty. Operand 1464 states and 2048 transitions. [2022-01-31 16:16:27,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2022-01-31 16:16:27,623 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:16:27,624 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 11, 11, 11, 11, 11, 9, 9, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:16:27,624 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-31 16:16:27,624 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:16:27,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:16:27,624 INFO L85 PathProgramCache]: Analyzing trace with hash -2009924782, now seen corresponding path program 1 times [2022-01-31 16:16:27,625 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:16:27,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737628263] [2022-01-31 16:16:27,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:27,625 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:16:27,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:27,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:16:27,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:27,683 INFO L134 CoverageAnalysis]: Checked inductivity of 805 backedges. 477 proven. 0 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2022-01-31 16:16:27,683 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:16:27,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737628263] [2022-01-31 16:16:27,683 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737628263] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:16:27,683 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:16:27,684 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:16:27,684 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530072490] [2022-01-31 16:16:27,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:16:27,684 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:16:27,684 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:16:27,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:16:27,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:16:27,685 INFO L87 Difference]: Start difference. First operand 1464 states and 2048 transitions. Second operand has 4 states, 4 states have (on average 29.25) internal successors, (117), 3 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:27,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:16:27,887 INFO L93 Difference]: Finished difference Result 1672 states and 2292 transitions. [2022-01-31 16:16:27,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:16:27,888 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 3 states have internal predecessors, (117), 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 236 [2022-01-31 16:16:27,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:16:27,894 INFO L225 Difference]: With dead ends: 1672 [2022-01-31 16:16:27,894 INFO L226 Difference]: Without dead ends: 1620 [2022-01-31 16:16:27,894 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:16:27,896 INFO L933 BasicCegarLoop]: 165 mSDtfsCounter, 289 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 16:16:27,896 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [289 Valid, 172 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-31 16:16:27,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1620 states. [2022-01-31 16:16:27,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1620 to 1576. [2022-01-31 16:16:27,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1576 states, 1571 states have (on average 1.3901973265436027) internal successors, (2184), 1571 states have internal predecessors, (2184), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:27,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 2188 transitions. [2022-01-31 16:16:27,926 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 2188 transitions. Word has length 236 [2022-01-31 16:16:27,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:16:27,926 INFO L470 AbstractCegarLoop]: Abstraction has 1576 states and 2188 transitions. [2022-01-31 16:16:27,926 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 3 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:27,926 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 2188 transitions. [2022-01-31 16:16:27,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2022-01-31 16:16:27,932 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:16:27,934 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 11, 11, 11, 11, 11, 9, 9, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:16:27,934 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-31 16:16:27,934 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:16:27,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:16:27,934 INFO L85 PathProgramCache]: Analyzing trace with hash -879138157, now seen corresponding path program 1 times [2022-01-31 16:16:27,934 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:16:27,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180519051] [2022-01-31 16:16:27,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:27,935 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:16:27,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:27,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:16:27,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:27,998 INFO L134 CoverageAnalysis]: Checked inductivity of 805 backedges. 477 proven. 0 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2022-01-31 16:16:27,999 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:16:27,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180519051] [2022-01-31 16:16:27,999 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180519051] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:16:27,999 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:16:27,999 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:16:27,999 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638520529] [2022-01-31 16:16:27,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:16:28,000 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:16:28,000 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:16:28,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:16:28,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:16:28,000 INFO L87 Difference]: Start difference. First operand 1576 states and 2188 transitions. Second operand has 4 states, 4 states have (on average 29.25) internal successors, (117), 3 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:28,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:16:28,195 INFO L93 Difference]: Finished difference Result 1784 states and 2452 transitions. [2022-01-31 16:16:28,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:16:28,196 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 3 states have internal predecessors, (117), 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 236 [2022-01-31 16:16:28,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:16:28,202 INFO L225 Difference]: With dead ends: 1784 [2022-01-31 16:16:28,202 INFO L226 Difference]: Without dead ends: 1748 [2022-01-31 16:16:28,203 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:16:28,203 INFO L933 BasicCegarLoop]: 165 mSDtfsCounter, 292 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 292 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 16:16:28,203 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [292 Valid, 172 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-31 16:16:28,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1748 states. [2022-01-31 16:16:28,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1748 to 1700. [2022-01-31 16:16:28,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1700 states, 1695 states have (on average 1.3876106194690265) internal successors, (2352), 1695 states have internal predecessors, (2352), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:28,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1700 states to 1700 states and 2356 transitions. [2022-01-31 16:16:28,235 INFO L78 Accepts]: Start accepts. Automaton has 1700 states and 2356 transitions. Word has length 236 [2022-01-31 16:16:28,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:16:28,236 INFO L470 AbstractCegarLoop]: Abstraction has 1700 states and 2356 transitions. [2022-01-31 16:16:28,236 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 3 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:28,236 INFO L276 IsEmpty]: Start isEmpty. Operand 1700 states and 2356 transitions. [2022-01-31 16:16:28,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2022-01-31 16:16:28,241 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:16:28,241 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 12, 12, 12, 12, 12, 10, 10, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:16:28,241 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-31 16:16:28,241 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:16:28,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:16:28,242 INFO L85 PathProgramCache]: Analyzing trace with hash -1124280444, now seen corresponding path program 1 times [2022-01-31 16:16:28,242 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:16:28,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177890375] [2022-01-31 16:16:28,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:28,242 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:16:28,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:28,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:16:28,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:28,295 INFO L134 CoverageAnalysis]: Checked inductivity of 973 backedges. 620 proven. 0 refuted. 0 times theorem prover too weak. 353 trivial. 0 not checked. [2022-01-31 16:16:28,295 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:16:28,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177890375] [2022-01-31 16:16:28,295 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177890375] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:16:28,296 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:16:28,296 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:16:28,296 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824348867] [2022-01-31 16:16:28,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:16:28,296 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:16:28,296 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:16:28,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:16:28,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:16:28,297 INFO L87 Difference]: Start difference. First operand 1700 states and 2356 transitions. Second operand has 4 states, 4 states have (on average 35.75) internal successors, (143), 3 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:28,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:16:28,481 INFO L93 Difference]: Finished difference Result 3376 states and 4675 transitions. [2022-01-31 16:16:28,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:16:28,481 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.75) internal successors, (143), 3 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 266 [2022-01-31 16:16:28,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:16:28,494 INFO L225 Difference]: With dead ends: 3376 [2022-01-31 16:16:28,495 INFO L226 Difference]: Without dead ends: 3376 [2022-01-31 16:16:28,495 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:16:28,495 INFO L933 BasicCegarLoop]: 320 mSDtfsCounter, 293 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 293 SdHoareTripleChecker+Valid, 327 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 16:16:28,496 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [293 Valid, 327 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-31 16:16:28,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3376 states. [2022-01-31 16:16:28,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3376 to 3374. [2022-01-31 16:16:28,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3374 states, 3369 states have (on average 1.386168002374592) internal successors, (4670), 3369 states have internal predecessors, (4670), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:28,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3374 states to 3374 states and 4674 transitions. [2022-01-31 16:16:28,567 INFO L78 Accepts]: Start accepts. Automaton has 3374 states and 4674 transitions. Word has length 266 [2022-01-31 16:16:28,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:16:28,568 INFO L470 AbstractCegarLoop]: Abstraction has 3374 states and 4674 transitions. [2022-01-31 16:16:28,568 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.75) internal successors, (143), 3 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:28,568 INFO L276 IsEmpty]: Start isEmpty. Operand 3374 states and 4674 transitions. [2022-01-31 16:16:28,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2022-01-31 16:16:28,576 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:16:28,576 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 12, 12, 12, 12, 12, 10, 10, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:16:28,576 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-31 16:16:28,576 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:16:28,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:16:28,577 INFO L85 PathProgramCache]: Analyzing trace with hash 6506181, now seen corresponding path program 1 times [2022-01-31 16:16:28,577 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:16:28,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210506327] [2022-01-31 16:16:28,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:28,577 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:16:28,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:28,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:16:28,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:28,629 INFO L134 CoverageAnalysis]: Checked inductivity of 973 backedges. 552 proven. 0 refuted. 0 times theorem prover too weak. 421 trivial. 0 not checked. [2022-01-31 16:16:28,630 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:16:28,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210506327] [2022-01-31 16:16:28,630 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210506327] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:16:28,630 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:16:28,630 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:16:28,630 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263106731] [2022-01-31 16:16:28,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:16:28,631 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:16:28,631 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:16:28,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:16:28,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:16:28,631 INFO L87 Difference]: Start difference. First operand 3374 states and 4674 transitions. Second operand has 4 states, 4 states have (on average 32.0) internal successors, (128), 3 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:28,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:16:28,822 INFO L93 Difference]: Finished difference Result 3782 states and 5218 transitions. [2022-01-31 16:16:28,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:16:28,823 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 3 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 266 [2022-01-31 16:16:28,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:16:28,879 INFO L225 Difference]: With dead ends: 3782 [2022-01-31 16:16:28,879 INFO L226 Difference]: Without dead ends: 3742 [2022-01-31 16:16:28,879 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:16:28,880 INFO L933 BasicCegarLoop]: 164 mSDtfsCounter, 293 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 293 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 16:16:28,880 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [293 Valid, 171 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-31 16:16:28,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3742 states. [2022-01-31 16:16:28,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3742 to 3654. [2022-01-31 16:16:28,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3654 states, 3649 states have (on average 1.389421759386133) internal successors, (5070), 3649 states have internal predecessors, (5070), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:28,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3654 states to 3654 states and 5074 transitions. [2022-01-31 16:16:28,953 INFO L78 Accepts]: Start accepts. Automaton has 3654 states and 5074 transitions. Word has length 266 [2022-01-31 16:16:28,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:16:28,954 INFO L470 AbstractCegarLoop]: Abstraction has 3654 states and 5074 transitions. [2022-01-31 16:16:28,954 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 3 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:28,955 INFO L276 IsEmpty]: Start isEmpty. Operand 3654 states and 5074 transitions. [2022-01-31 16:16:28,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2022-01-31 16:16:28,963 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:16:28,964 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 13, 13, 13, 13, 13, 11, 11, 9, 9, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:16:28,964 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-31 16:16:28,964 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:16:28,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:16:28,964 INFO L85 PathProgramCache]: Analyzing trace with hash -1703890796, now seen corresponding path program 1 times [2022-01-31 16:16:28,965 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:16:28,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297530553] [2022-01-31 16:16:28,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:28,965 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:16:28,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:29,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:16:29,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:29,022 INFO L134 CoverageAnalysis]: Checked inductivity of 1167 backedges. 627 proven. 0 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked. [2022-01-31 16:16:29,022 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:16:29,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297530553] [2022-01-31 16:16:29,023 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297530553] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:16:29,023 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:16:29,023 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:16:29,023 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544516671] [2022-01-31 16:16:29,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:16:29,023 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:16:29,024 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:16:29,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:16:29,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:16:29,024 INFO L87 Difference]: Start difference. First operand 3654 states and 5074 transitions. Second operand has 4 states, 4 states have (on average 34.5) internal successors, (138), 3 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:29,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:16:29,187 INFO L93 Difference]: Finished difference Result 3766 states and 5170 transitions. [2022-01-31 16:16:29,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:16:29,187 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 3 states have internal predecessors, (138), 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 301 [2022-01-31 16:16:29,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:16:29,202 INFO L225 Difference]: With dead ends: 3766 [2022-01-31 16:16:29,202 INFO L226 Difference]: Without dead ends: 3742 [2022-01-31 16:16:29,202 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:16:29,203 INFO L933 BasicCegarLoop]: 163 mSDtfsCounter, 298 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 298 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-31 16:16:29,203 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [298 Valid, 170 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-31 16:16:29,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3742 states. [2022-01-31 16:16:29,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3742 to 3654. [2022-01-31 16:16:29,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3654 states, 3649 states have (on average 1.380652233488627) internal successors, (5038), 3649 states have internal predecessors, (5038), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:29,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3654 states to 3654 states and 5042 transitions. [2022-01-31 16:16:29,274 INFO L78 Accepts]: Start accepts. Automaton has 3654 states and 5042 transitions. Word has length 301 [2022-01-31 16:16:29,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:16:29,274 INFO L470 AbstractCegarLoop]: Abstraction has 3654 states and 5042 transitions. [2022-01-31 16:16:29,274 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 3 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:29,274 INFO L276 IsEmpty]: Start isEmpty. Operand 3654 states and 5042 transitions. [2022-01-31 16:16:29,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2022-01-31 16:16:29,284 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:16:29,285 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 14, 14, 14, 12, 12, 10, 10, 8, 8, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:16:29,285 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-31 16:16:29,285 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:16:29,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:16:29,285 INFO L85 PathProgramCache]: Analyzing trace with hash -1069632228, now seen corresponding path program 1 times [2022-01-31 16:16:29,285 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:16:29,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203116397] [2022-01-31 16:16:29,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:29,286 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:16:29,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:29,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:16:29,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:29,343 INFO L134 CoverageAnalysis]: Checked inductivity of 1418 backedges. 729 proven. 0 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2022-01-31 16:16:29,343 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:16:29,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203116397] [2022-01-31 16:16:29,344 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203116397] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:16:29,344 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:16:29,344 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:16:29,344 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863621869] [2022-01-31 16:16:29,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:16:29,344 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:16:29,345 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:16:29,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:16:29,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:16:29,345 INFO L87 Difference]: Start difference. First operand 3654 states and 5042 transitions. Second operand has 4 states, 4 states have (on average 36.5) internal successors, (146), 3 states have internal predecessors, (146), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:29,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:16:29,505 INFO L93 Difference]: Finished difference Result 3702 states and 5037 transitions. [2022-01-31 16:16:29,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:16:29,505 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.5) internal successors, (146), 3 states have internal predecessors, (146), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 338 [2022-01-31 16:16:29,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:16:29,514 INFO L225 Difference]: With dead ends: 3702 [2022-01-31 16:16:29,515 INFO L226 Difference]: Without dead ends: 3702 [2022-01-31 16:16:29,515 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:16:29,515 INFO L933 BasicCegarLoop]: 173 mSDtfsCounter, 288 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 288 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-31 16:16:29,516 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [288 Valid, 180 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-31 16:16:29,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3702 states. [2022-01-31 16:16:29,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3702 to 3604. [2022-01-31 16:16:29,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3604 states, 3599 states have (on average 1.3631564323423173) internal successors, (4906), 3599 states have internal predecessors, (4906), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:29,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3604 states to 3604 states and 4910 transitions. [2022-01-31 16:16:29,633 INFO L78 Accepts]: Start accepts. Automaton has 3604 states and 4910 transitions. Word has length 338 [2022-01-31 16:16:29,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:16:29,634 INFO L470 AbstractCegarLoop]: Abstraction has 3604 states and 4910 transitions. [2022-01-31 16:16:29,634 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.5) internal successors, (146), 3 states have internal predecessors, (146), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:29,634 INFO L276 IsEmpty]: Start isEmpty. Operand 3604 states and 4910 transitions. [2022-01-31 16:16:29,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2022-01-31 16:16:29,644 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:16:29,644 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 14, 14, 14, 12, 12, 10, 10, 8, 8, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:16:29,644 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-31 16:16:29,644 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:16:29,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:16:29,645 INFO L85 PathProgramCache]: Analyzing trace with hash -732748657, now seen corresponding path program 1 times [2022-01-31 16:16:29,645 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:16:29,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721575482] [2022-01-31 16:16:29,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:29,645 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:16:29,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:29,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:16:29,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:29,713 INFO L134 CoverageAnalysis]: Checked inductivity of 1418 backedges. 869 proven. 0 refuted. 0 times theorem prover too weak. 549 trivial. 0 not checked. [2022-01-31 16:16:29,713 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:16:29,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721575482] [2022-01-31 16:16:29,714 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721575482] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:16:29,714 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:16:29,714 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:16:29,714 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768814929] [2022-01-31 16:16:29,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:16:29,714 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:16:29,715 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:16:29,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:16:29,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:16:29,715 INFO L87 Difference]: Start difference. First operand 3604 states and 4910 transitions. Second operand has 4 states, 4 states have (on average 38.0) internal successors, (152), 3 states have internal predecessors, (152), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:29,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:16:29,907 INFO L93 Difference]: Finished difference Result 6668 states and 9031 transitions. [2022-01-31 16:16:29,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:16:29,908 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.0) internal successors, (152), 3 states have internal predecessors, (152), 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 339 [2022-01-31 16:16:29,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:16:29,924 INFO L225 Difference]: With dead ends: 6668 [2022-01-31 16:16:29,925 INFO L226 Difference]: Without dead ends: 6668 [2022-01-31 16:16:29,925 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:16:29,925 INFO L933 BasicCegarLoop]: 285 mSDtfsCounter, 282 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 16:16:29,926 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [282 Valid, 292 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-31 16:16:29,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6668 states. [2022-01-31 16:16:30,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6668 to 6666. [2022-01-31 16:16:30,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6666 states, 6661 states have (on average 1.3550517940249212) internal successors, (9026), 6661 states have internal predecessors, (9026), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:30,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6666 states to 6666 states and 9030 transitions. [2022-01-31 16:16:30,068 INFO L78 Accepts]: Start accepts. Automaton has 6666 states and 9030 transitions. Word has length 339 [2022-01-31 16:16:30,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:16:30,068 INFO L470 AbstractCegarLoop]: Abstraction has 6666 states and 9030 transitions. [2022-01-31 16:16:30,069 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.0) internal successors, (152), 3 states have internal predecessors, (152), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:30,069 INFO L276 IsEmpty]: Start isEmpty. Operand 6666 states and 9030 transitions. [2022-01-31 16:16:30,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2022-01-31 16:16:30,081 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:16:30,081 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 14, 14, 13, 13, 11, 11, 9, 9, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:16:30,082 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-31 16:16:30,082 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:16:30,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:16:30,082 INFO L85 PathProgramCache]: Analyzing trace with hash -1470237842, now seen corresponding path program 1 times [2022-01-31 16:16:30,082 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:16:30,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365095051] [2022-01-31 16:16:30,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:30,083 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:16:30,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:30,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:16:30,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:30,159 INFO L134 CoverageAnalysis]: Checked inductivity of 1415 backedges. 790 proven. 12 refuted. 0 times theorem prover too weak. 613 trivial. 0 not checked. [2022-01-31 16:16:30,159 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:16:30,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365095051] [2022-01-31 16:16:30,159 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365095051] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-31 16:16:30,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [506574813] [2022-01-31 16:16:30,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:30,160 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 16:16:30,160 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 16:16:30,162 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-31 16:16:30,202 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-31 16:16:30,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:30,331 INFO L263 TraceCheckSpWp]: Trace formula consists of 694 conjuncts, 3 conjunts are in the unsatisfiable core [2022-01-31 16:16:30,341 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-31 16:16:30,937 INFO L134 CoverageAnalysis]: Checked inductivity of 1415 backedges. 790 proven. 12 refuted. 0 times theorem prover too weak. 613 trivial. 0 not checked. [2022-01-31 16:16:30,937 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-31 16:16:31,430 INFO L134 CoverageAnalysis]: Checked inductivity of 1415 backedges. 790 proven. 12 refuted. 0 times theorem prover too weak. 613 trivial. 0 not checked. [2022-01-31 16:16:31,431 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [506574813] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-31 16:16:31,431 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-31 16:16:31,431 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 7 [2022-01-31 16:16:31,431 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080941395] [2022-01-31 16:16:31,431 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-31 16:16:31,432 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-31 16:16:31,432 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:16:31,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-31 16:16:31,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-01-31 16:16:31,433 INFO L87 Difference]: Start difference. First operand 6666 states and 9030 transitions. Second operand has 7 states, 7 states have (on average 32.857142857142854) internal successors, (230), 6 states have internal predecessors, (230), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:32,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:16:32,229 INFO L93 Difference]: Finished difference Result 8867 states and 11594 transitions. [2022-01-31 16:16:32,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-31 16:16:32,229 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 32.857142857142854) internal successors, (230), 6 states have internal predecessors, (230), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 349 [2022-01-31 16:16:32,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:16:32,248 INFO L225 Difference]: With dead ends: 8867 [2022-01-31 16:16:32,248 INFO L226 Difference]: Without dead ends: 8859 [2022-01-31 16:16:32,248 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 713 GetRequests, 703 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-01-31 16:16:32,249 INFO L933 BasicCegarLoop]: 342 mSDtfsCounter, 506 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 991 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 506 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 1060 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 991 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-31 16:16:32,249 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [506 Valid, 359 Invalid, 1060 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 991 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-31 16:16:32,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8859 states. [2022-01-31 16:16:32,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8859 to 6678. [2022-01-31 16:16:32,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6678 states, 6673 states have (on average 1.3094560167840552) internal successors, (8738), 6673 states have internal predecessors, (8738), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:32,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6678 states to 6678 states and 8742 transitions. [2022-01-31 16:16:32,366 INFO L78 Accepts]: Start accepts. Automaton has 6678 states and 8742 transitions. Word has length 349 [2022-01-31 16:16:32,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:16:32,366 INFO L470 AbstractCegarLoop]: Abstraction has 6678 states and 8742 transitions. [2022-01-31 16:16:32,366 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 32.857142857142854) internal successors, (230), 6 states have internal predecessors, (230), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:32,367 INFO L276 IsEmpty]: Start isEmpty. Operand 6678 states and 8742 transitions. [2022-01-31 16:16:32,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 376 [2022-01-31 16:16:32,378 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:16:32,379 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 16, 16, 15, 15, 15, 15, 15, 13, 13, 11, 11, 9, 9, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:16:32,407 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-01-31 16:16:32,599 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2022-01-31 16:16:32,600 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:16:32,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:16:32,600 INFO L85 PathProgramCache]: Analyzing trace with hash 1965032719, now seen corresponding path program 1 times [2022-01-31 16:16:32,600 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:16:32,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531172972] [2022-01-31 16:16:32,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:32,601 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:16:32,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:32,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:16:32,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:32,684 INFO L134 CoverageAnalysis]: Checked inductivity of 1647 backedges. 953 proven. 5 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2022-01-31 16:16:32,685 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:16:32,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531172972] [2022-01-31 16:16:32,685 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531172972] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-31 16:16:32,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1501762281] [2022-01-31 16:16:32,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:32,685 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 16:16:32,685 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 16:16:32,687 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-31 16:16:32,688 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-01-31 16:16:32,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:32,852 INFO L263 TraceCheckSpWp]: Trace formula consists of 750 conjuncts, 3 conjunts are in the unsatisfiable core [2022-01-31 16:16:32,857 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-31 16:16:33,497 INFO L134 CoverageAnalysis]: Checked inductivity of 1647 backedges. 953 proven. 5 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2022-01-31 16:16:33,498 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-31 16:16:34,066 INFO L134 CoverageAnalysis]: Checked inductivity of 1647 backedges. 953 proven. 5 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2022-01-31 16:16:34,066 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1501762281] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-31 16:16:34,066 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-31 16:16:34,067 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 7 [2022-01-31 16:16:34,067 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656008861] [2022-01-31 16:16:34,067 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-31 16:16:34,068 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-31 16:16:34,068 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:16:34,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-31 16:16:34,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-01-31 16:16:34,069 INFO L87 Difference]: Start difference. First operand 6678 states and 8742 transitions. Second operand has 7 states, 7 states have (on average 32.714285714285715) internal successors, (229), 6 states have internal predecessors, (229), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:34,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:16:34,509 INFO L93 Difference]: Finished difference Result 8281 states and 10773 transitions. [2022-01-31 16:16:34,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-31 16:16:34,510 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 32.714285714285715) internal successors, (229), 6 states have internal predecessors, (229), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 375 [2022-01-31 16:16:34,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:16:34,526 INFO L225 Difference]: With dead ends: 8281 [2022-01-31 16:16:34,526 INFO L226 Difference]: Without dead ends: 8264 [2022-01-31 16:16:34,527 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 760 GetRequests, 752 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-01-31 16:16:34,527 INFO L933 BasicCegarLoop]: 233 mSDtfsCounter, 399 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 619 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 399 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 668 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 619 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-31 16:16:34,528 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [399 Valid, 255 Invalid, 668 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 619 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-31 16:16:34,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8264 states. [2022-01-31 16:16:34,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8264 to 6643. [2022-01-31 16:16:34,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6643 states, 6638 states have (on average 1.2967761373907805) internal successors, (8608), 6638 states have internal predecessors, (8608), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:34,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6643 states to 6643 states and 8612 transitions. [2022-01-31 16:16:34,628 INFO L78 Accepts]: Start accepts. Automaton has 6643 states and 8612 transitions. Word has length 375 [2022-01-31 16:16:34,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:16:34,629 INFO L470 AbstractCegarLoop]: Abstraction has 6643 states and 8612 transitions. [2022-01-31 16:16:34,629 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 32.714285714285715) internal successors, (229), 6 states have internal predecessors, (229), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:34,629 INFO L276 IsEmpty]: Start isEmpty. Operand 6643 states and 8612 transitions. [2022-01-31 16:16:34,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 415 [2022-01-31 16:16:34,642 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:16:34,643 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 17, 17, 17, 17, 16, 16, 16, 14, 14, 12, 12, 10, 10, 8, 8, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:16:34,669 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-01-31 16:16:34,864 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 16:16:34,865 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:16:34,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:16:34,865 INFO L85 PathProgramCache]: Analyzing trace with hash 1214695079, now seen corresponding path program 1 times [2022-01-31 16:16:34,865 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:16:34,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845987773] [2022-01-31 16:16:34,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:34,866 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:16:34,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:34,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:16:34,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:34,948 INFO L134 CoverageAnalysis]: Checked inductivity of 1968 backedges. 883 proven. 0 refuted. 0 times theorem prover too weak. 1085 trivial. 0 not checked. [2022-01-31 16:16:34,948 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:16:34,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845987773] [2022-01-31 16:16:34,948 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845987773] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:16:34,948 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:16:34,948 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:16:34,949 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675741868] [2022-01-31 16:16:34,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:16:34,949 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:16:34,950 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:16:34,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:16:34,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:16:34,950 INFO L87 Difference]: Start difference. First operand 6643 states and 8612 transitions. Second operand has 4 states, 4 states have (on average 39.5) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:35,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:16:35,173 INFO L93 Difference]: Finished difference Result 6257 states and 8078 transitions. [2022-01-31 16:16:35,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:16:35,174 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 3 states have internal predecessors, (158), 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 414 [2022-01-31 16:16:35,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:16:35,180 INFO L225 Difference]: With dead ends: 6257 [2022-01-31 16:16:35,180 INFO L226 Difference]: Without dead ends: 3467 [2022-01-31 16:16:35,180 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:16:35,181 INFO L933 BasicCegarLoop]: 185 mSDtfsCounter, 178 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 16:16:35,181 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [178 Valid, 192 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-31 16:16:35,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3467 states. [2022-01-31 16:16:35,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3467 to 3393. [2022-01-31 16:16:35,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3393 states, 3388 states have (on average 1.3122786304604486) internal successors, (4446), 3388 states have internal predecessors, (4446), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:35,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3393 states to 3393 states and 4450 transitions. [2022-01-31 16:16:35,225 INFO L78 Accepts]: Start accepts. Automaton has 3393 states and 4450 transitions. Word has length 414 [2022-01-31 16:16:35,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:16:35,225 INFO L470 AbstractCegarLoop]: Abstraction has 3393 states and 4450 transitions. [2022-01-31 16:16:35,225 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:35,226 INFO L276 IsEmpty]: Start isEmpty. Operand 3393 states and 4450 transitions. [2022-01-31 16:16:35,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 499 [2022-01-31 16:16:35,233 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:16:35,234 INFO L514 BasicCegarLoop]: trace histogram [19, 19, 18, 18, 18, 18, 18, 18, 18, 17, 17, 15, 15, 13, 13, 11, 11, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:16:35,234 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-01-31 16:16:35,235 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:16:35,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:16:35,235 INFO L85 PathProgramCache]: Analyzing trace with hash -1738124885, now seen corresponding path program 1 times [2022-01-31 16:16:35,235 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:16:35,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844899399] [2022-01-31 16:16:35,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:35,236 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:16:35,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:35,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:16:35,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:35,321 INFO L134 CoverageAnalysis]: Checked inductivity of 2709 backedges. 1570 proven. 14 refuted. 0 times theorem prover too weak. 1125 trivial. 0 not checked. [2022-01-31 16:16:35,322 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:16:35,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844899399] [2022-01-31 16:16:35,322 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844899399] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-31 16:16:35,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [680071279] [2022-01-31 16:16:35,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:35,322 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 16:16:35,322 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 16:16:35,324 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-31 16:16:35,349 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-01-31 16:16:35,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:35,486 INFO L263 TraceCheckSpWp]: Trace formula consists of 884 conjuncts, 3 conjunts are in the unsatisfiable core [2022-01-31 16:16:35,494 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-31 16:16:36,350 INFO L134 CoverageAnalysis]: Checked inductivity of 2709 backedges. 1017 proven. 0 refuted. 0 times theorem prover too weak. 1692 trivial. 0 not checked. [2022-01-31 16:16:36,351 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-31 16:16:36,351 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [680071279] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:16:36,351 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-01-31 16:16:36,351 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-01-31 16:16:36,351 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759178498] [2022-01-31 16:16:36,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:16:36,352 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-31 16:16:36,352 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:16:36,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-31 16:16:36,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:16:36,353 INFO L87 Difference]: Start difference. First operand 3393 states and 4450 transitions. Second operand has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:36,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:16:36,374 INFO L93 Difference]: Finished difference Result 3671 states and 4828 transitions. [2022-01-31 16:16:36,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-31 16:16:36,375 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 1 states have call successors, (3), 1 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 498 [2022-01-31 16:16:36,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:16:36,382 INFO L225 Difference]: With dead ends: 3671 [2022-01-31 16:16:36,382 INFO L226 Difference]: Without dead ends: 3671 [2022-01-31 16:16:36,383 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 503 GetRequests, 499 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:16:36,384 INFO L933 BasicCegarLoop]: 272 mSDtfsCounter, 60 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 397 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-31 16:16:36,384 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [60 Valid, 397 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-31 16:16:36,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3671 states. [2022-01-31 16:16:36,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3671 to 3319. [2022-01-31 16:16:36,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3319 states, 3314 states have (on average 1.3138201569100785) internal successors, (4354), 3314 states have internal predecessors, (4354), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:36,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3319 states to 3319 states and 4358 transitions. [2022-01-31 16:16:36,429 INFO L78 Accepts]: Start accepts. Automaton has 3319 states and 4358 transitions. Word has length 498 [2022-01-31 16:16:36,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:16:36,430 INFO L470 AbstractCegarLoop]: Abstraction has 3319 states and 4358 transitions. [2022-01-31 16:16:36,430 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:36,430 INFO L276 IsEmpty]: Start isEmpty. Operand 3319 states and 4358 transitions. [2022-01-31 16:16:36,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 611 [2022-01-31 16:16:36,441 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:16:36,441 INFO L514 BasicCegarLoop]: trace histogram [21, 21, 20, 20, 20, 20, 20, 20, 20, 19, 19, 17, 17, 16, 16, 15, 15, 13, 13, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 8, 8, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:16:36,470 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-01-31 16:16:36,667 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 16:16:36,668 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:16:36,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:16:36,668 INFO L85 PathProgramCache]: Analyzing trace with hash -113784954, now seen corresponding path program 1 times [2022-01-31 16:16:36,669 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:16:36,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737574405] [2022-01-31 16:16:36,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:36,669 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:16:36,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:36,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:16:36,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:36,816 INFO L134 CoverageAnalysis]: Checked inductivity of 3925 backedges. 2052 proven. 14 refuted. 0 times theorem prover too weak. 1859 trivial. 0 not checked. [2022-01-31 16:16:36,816 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:16:36,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737574405] [2022-01-31 16:16:36,817 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737574405] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-31 16:16:36,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2006044748] [2022-01-31 16:16:36,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:36,817 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 16:16:36,817 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 16:16:36,819 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-31 16:16:36,820 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-01-31 16:16:36,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:36,993 INFO L263 TraceCheckSpWp]: Trace formula consists of 1019 conjuncts, 3 conjunts are in the unsatisfiable core [2022-01-31 16:16:36,999 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-31 16:16:37,877 INFO L134 CoverageAnalysis]: Checked inductivity of 3925 backedges. 2052 proven. 14 refuted. 0 times theorem prover too weak. 1859 trivial. 0 not checked. [2022-01-31 16:16:37,877 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-31 16:16:38,816 INFO L134 CoverageAnalysis]: Checked inductivity of 3925 backedges. 2052 proven. 14 refuted. 0 times theorem prover too weak. 1859 trivial. 0 not checked. [2022-01-31 16:16:38,816 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2006044748] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-31 16:16:38,816 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-31 16:16:38,817 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 9 [2022-01-31 16:16:38,817 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234918610] [2022-01-31 16:16:38,817 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-31 16:16:38,818 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-31 16:16:38,818 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:16:38,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-31 16:16:38,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-01-31 16:16:38,818 INFO L87 Difference]: Start difference. First operand 3319 states and 4358 transitions. Second operand has 9 states, 9 states have (on average 36.22222222222222) internal successors, (326), 8 states have internal predecessors, (326), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:39,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:16:39,310 INFO L93 Difference]: Finished difference Result 1101 states and 1393 transitions. [2022-01-31 16:16:39,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-31 16:16:39,310 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 36.22222222222222) internal successors, (326), 8 states have internal predecessors, (326), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 610 [2022-01-31 16:16:39,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:16:39,311 INFO L225 Difference]: With dead ends: 1101 [2022-01-31 16:16:39,311 INFO L226 Difference]: Without dead ends: 0 [2022-01-31 16:16:39,311 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1231 GetRequests, 1221 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2022-01-31 16:16:39,311 INFO L933 BasicCegarLoop]: 155 mSDtfsCounter, 282 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 781 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 824 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 781 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-31 16:16:39,312 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [282 Valid, 182 Invalid, 824 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 781 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-31 16:16:39,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-01-31 16:16:39,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-01-31 16:16:39,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-31 16:16:39,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-01-31 16:16:39,312 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 610 [2022-01-31 16:16:39,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:16:39,313 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-01-31 16:16:39,313 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 36.22222222222222) internal successors, (326), 8 states have internal predecessors, (326), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:39,313 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-01-31 16:16:39,313 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-01-31 16:16:39,315 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-31 16:16:39,342 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-01-31 16:16:39,535 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 16:16:39,538 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:16:39,539 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-01-31 16:16:39,542 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.01 04:16:39 BasicIcfg [2022-01-31 16:16:39,542 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-31 16:16:39,542 INFO L158 Benchmark]: Toolchain (without parser) took 20518.84ms. Allocated memory was 183.5MB in the beginning and 389.0MB in the end (delta: 205.5MB). Free memory was 127.4MB in the beginning and 149.5MB in the end (delta: -22.0MB). Peak memory consumption was 184.8MB. Max. memory is 8.0GB. [2022-01-31 16:16:39,543 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 183.5MB. Free memory was 144.6MB in the beginning and 144.5MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 8.0GB. [2022-01-31 16:16:39,543 INFO L158 Benchmark]: CACSL2BoogieTranslator took 333.25ms. Allocated memory was 183.5MB in the beginning and 259.0MB in the end (delta: 75.5MB). Free memory was 127.2MB in the beginning and 227.5MB in the end (delta: -100.2MB). Peak memory consumption was 15.2MB. Max. memory is 8.0GB. [2022-01-31 16:16:39,543 INFO L158 Benchmark]: Boogie Preprocessor took 69.74ms. Allocated memory is still 259.0MB. Free memory was 227.5MB in the beginning and 225.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-31 16:16:39,543 INFO L158 Benchmark]: RCFGBuilder took 570.13ms. Allocated memory is still 259.0MB. Free memory was 225.4MB in the beginning and 199.7MB in the end (delta: 25.7MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. [2022-01-31 16:16:39,543 INFO L158 Benchmark]: IcfgTransformer took 41.51ms. Allocated memory is still 259.0MB. Free memory was 199.7MB in the beginning and 196.5MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-01-31 16:16:39,544 INFO L158 Benchmark]: TraceAbstraction took 19495.21ms. Allocated memory was 259.0MB in the beginning and 389.0MB in the end (delta: 130.0MB). Free memory was 196.0MB in the beginning and 149.5MB in the end (delta: 46.5MB). Peak memory consumption was 177.6MB. Max. memory is 8.0GB. [2022-01-31 16:16:39,544 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 183.5MB. Free memory was 144.6MB in the beginning and 144.5MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 333.25ms. Allocated memory was 183.5MB in the beginning and 259.0MB in the end (delta: 75.5MB). Free memory was 127.2MB in the beginning and 227.5MB in the end (delta: -100.2MB). Peak memory consumption was 15.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 69.74ms. Allocated memory is still 259.0MB. Free memory was 227.5MB in the beginning and 225.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 570.13ms. Allocated memory is still 259.0MB. Free memory was 225.4MB in the beginning and 199.7MB in the end (delta: 25.7MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. * IcfgTransformer took 41.51ms. Allocated memory is still 259.0MB. Free memory was 199.7MB in the beginning and 196.5MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * TraceAbstraction took 19495.21ms. Allocated memory was 259.0MB in the beginning and 389.0MB in the end (delta: 130.0MB). Free memory was 196.0MB in the beginning and 149.5MB in the end (delta: 46.5MB). Peak memory consumption was 177.6MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 618]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 133 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 19.4s, OverallIterations: 33, TraceHistogramMax: 21, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 8.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 13200 SdHoareTripleChecker+Valid, 7.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 13200 mSDsluCounter, 6235 SdHoareTripleChecker+Invalid, 5.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 528 mSDsCounter, 1130 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 8526 IncrementalHoareTripleChecker+Invalid, 9656 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1130 mSolverCounterUnsat, 5707 mSDtfsCounter, 8526 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3448 GetRequests, 3277 SyntacticMatches, 0 SemanticMatches, 171 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6678occurred in iteration=29, InterpolantAutomatonStates: 165, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.2s AutomataMinimizationTime, 33 MinimizatonAttempts, 4846 StatesRemovedByMinimization, 27 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 6.7s InterpolantComputationTime, 8180 NumberOfCodeBlocks, 8180 NumberOfCodeBlocksAsserted, 37 NumberOfCheckSat, 9474 ConstructedInterpolants, 0 QuantifiedInterpolants, 13474 SizeOfPredicates, 3 NumberOfNonLiveVariables, 3347 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 40 InterpolantComputations, 30 PerfectInterpolantSequences, 38989/39096 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-01-31 16:16:39,572 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...