/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-3.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-d966a43 [2022-01-31 16:16:17,618 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-31 16:16:17,620 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-31 16:16:17,671 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-31 16:16:17,672 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-31 16:16:17,672 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-31 16:16:17,673 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-31 16:16:17,674 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-31 16:16:17,675 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-31 16:16:17,676 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-31 16:16:17,677 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-31 16:16:17,677 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-31 16:16:17,678 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-31 16:16:17,678 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-31 16:16:17,699 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-31 16:16:17,702 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-31 16:16:17,702 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-31 16:16:17,705 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-31 16:16:17,706 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-31 16:16:17,707 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-31 16:16:17,708 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-31 16:16:17,712 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-31 16:16:17,713 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-31 16:16:17,714 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-31 16:16:17,716 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-31 16:16:17,717 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-31 16:16:17,717 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-31 16:16:17,717 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-31 16:16:17,717 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-31 16:16:17,718 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-31 16:16:17,718 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-31 16:16:17,718 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-31 16:16:17,719 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-31 16:16:17,719 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-31 16:16:17,720 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-31 16:16:17,720 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-31 16:16:17,721 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-31 16:16:17,721 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-31 16:16:17,721 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-31 16:16:17,721 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-31 16:16:17,722 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-31 16:16:17,727 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-01-31 16:16:17,737 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-31 16:16:17,737 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-31 16:16:17,738 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-31 16:16:17,738 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-31 16:16:17,738 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-31 16:16:17,738 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-31 16:16:17,738 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-31 16:16:17,738 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-31 16:16:17,738 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-31 16:16:17,738 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-31 16:16:17,738 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-31 16:16:17,738 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-31 16:16:17,739 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-31 16:16:17,739 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-31 16:16:17,739 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-31 16:16:17,739 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-31 16:16:17,739 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-31 16:16:17,739 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-31 16:16:17,739 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 16:16:17,739 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-31 16:16:17,739 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-31 16:16:17,740 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-31 16:16:17,740 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-31 16:16:17,957 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-31 16:16:17,980 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-31 16:16:17,982 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-31 16:16:17,982 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-31 16:16:17,983 INFO L275 PluginConnector]: CDTParser initialized [2022-01-31 16:16:17,984 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl-simplified/s3_clnt_3.cil-3.c [2022-01-31 16:16:18,031 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2154115f9/dd26ab80d16048108172eeb5d1655c2b/FLAGb00629f77 [2022-01-31 16:16:18,409 INFO L306 CDTParser]: Found 1 translation units. [2022-01-31 16:16:18,409 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl-simplified/s3_clnt_3.cil-3.c [2022-01-31 16:16:18,420 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2154115f9/dd26ab80d16048108172eeb5d1655c2b/FLAGb00629f77 [2022-01-31 16:16:18,434 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2154115f9/dd26ab80d16048108172eeb5d1655c2b [2022-01-31 16:16:18,436 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-31 16:16:18,438 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-31 16:16:18,441 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-31 16:16:18,441 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-31 16:16:18,444 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-31 16:16:18,444 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 04:16:18" (1/1) ... [2022-01-31 16:16:18,445 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4abc89e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:16:18, skipping insertion in model container [2022-01-31 16:16:18,445 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 04:16:18" (1/1) ... [2022-01-31 16:16:18,450 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-31 16:16:18,490 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-31 16:16:18,705 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-3.c[37595,37608] [2022-01-31 16:16:18,724 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 16:16:18,729 INFO L203 MainTranslator]: Completed pre-run [2022-01-31 16:16:18,776 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-3.c[37595,37608] [2022-01-31 16:16:18,778 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 16:16:18,791 INFO L208 MainTranslator]: Completed translation [2022-01-31 16:16:18,792 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:16:18 WrapperNode [2022-01-31 16:16:18,792 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-31 16:16:18,792 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-31 16:16:18,792 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-31 16:16:18,793 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-31 16:16:18,802 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:16:18" (1/1) ... [2022-01-31 16:16:18,802 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:16:18" (1/1) ... [2022-01-31 16:16:18,823 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:16:18" (1/1) ... [2022-01-31 16:16:18,823 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:16:18" (1/1) ... [2022-01-31 16:16:18,831 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:16:18" (1/1) ... [2022-01-31 16:16:18,853 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:16:18" (1/1) ... [2022-01-31 16:16:18,855 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:16:18" (1/1) ... [2022-01-31 16:16:18,868 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-31 16:16:18,869 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-31 16:16:18,869 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-31 16:16:18,869 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-31 16:16:18,870 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:16:18" (1/1) ... [2022-01-31 16:16:18,881 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 16:16:18,889 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 16:16:18,898 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 16:16:18,928 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 16:16:18,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-01-31 16:16:18,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-31 16:16:18,943 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-01-31 16:16:18,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_connect [2022-01-31 16:16:18,943 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-01-31 16:16:18,944 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-01-31 16:16:18,944 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-01-31 16:16:18,944 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-01-31 16:16:18,945 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-31 16:16:18,945 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-01-31 16:16:18,945 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-01-31 16:16:18,945 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-01-31 16:16:18,945 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_connect [2022-01-31 16:16:18,945 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-01-31 16:16:18,945 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-01-31 16:16:18,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-31 16:16:18,947 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-31 16:16:18,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-31 16:16:18,948 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-31 16:16:18,948 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-31 16:16:19,033 INFO L234 CfgBuilder]: Building ICFG [2022-01-31 16:16:19,035 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-31 16:16:19,119 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-31 16:16:19,421 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2022-01-31 16:16:19,421 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2022-01-31 16:16:19,423 INFO L275 CfgBuilder]: Performing block encoding [2022-01-31 16:16:19,431 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-31 16:16:19,431 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-31 16:16:19,434 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 04:16:19 BoogieIcfgContainer [2022-01-31 16:16:19,434 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-31 16:16:19,435 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-31 16:16:19,435 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-31 16:16:19,436 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-31 16:16:19,438 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 04:16:19" (1/1) ... [2022-01-31 16:16:19,465 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 31.01 04:16:19 BasicIcfg [2022-01-31 16:16:19,465 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-31 16:16:19,466 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-31 16:16:19,466 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-31 16:16:19,468 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-31 16:16:19,468 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 04:16:18" (1/4) ... [2022-01-31 16:16:19,469 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49247312 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 04:16:19, skipping insertion in model container [2022-01-31 16:16:19,469 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:16:18" (2/4) ... [2022-01-31 16:16:19,470 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49247312 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 04:16:19, skipping insertion in model container [2022-01-31 16:16:19,470 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 04:16:19" (3/4) ... [2022-01-31 16:16:19,470 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49247312 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.01 04:16:19, skipping insertion in model container [2022-01-31 16:16:19,470 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 31.01 04:16:19" (4/4) ... [2022-01-31 16:16:19,471 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_clnt_3.cil-3.cJordan [2022-01-31 16:16:19,474 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-01-31 16:16:19,475 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-31 16:16:19,510 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-31 16:16:19,515 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 16:16:19,515 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-31 16:16:19,527 INFO L276 IsEmpty]: Start isEmpty. Operand has 137 states, 129 states have (on average 1.697674418604651) internal successors, (219), 130 states have internal predecessors, (219), 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 16:16:19,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-01-31 16:16:19,534 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:16:19,534 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 16:16:19,536 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:16:19,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:16:19,540 INFO L85 PathProgramCache]: Analyzing trace with hash 420500670, now seen corresponding path program 1 times [2022-01-31 16:16:19,560 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:16:19,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630471414] [2022-01-31 16:16:19,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:19,561 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:16:19,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:19,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:16:19,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:19,815 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 16:16:19,815 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:16:19,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630471414] [2022-01-31 16:16:19,816 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630471414] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:16:19,816 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:16:19,816 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:16:19,817 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243466930] [2022-01-31 16:16:19,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:16:19,821 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:16:19,821 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:16:19,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:16:19,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:16:19,844 INFO L87 Difference]: Start difference. First operand has 137 states, 129 states have (on average 1.697674418604651) internal successors, (219), 130 states have internal predecessors, (219), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 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 16:16:20,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:16:20,143 INFO L93 Difference]: Finished difference Result 252 states and 412 transitions. [2022-01-31 16:16:20,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:16:20,146 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 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 30 [2022-01-31 16:16:20,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:16:20,152 INFO L225 Difference]: With dead ends: 252 [2022-01-31 16:16:20,152 INFO L226 Difference]: Without dead ends: 219 [2022-01-31 16:16:20,153 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 16:16:20,156 INFO L933 BasicCegarLoop]: 215 mSDtfsCounter, 578 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 580 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 16:16:20,156 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [580 Valid, 224 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-31 16:16:20,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2022-01-31 16:16:20,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 219. [2022-01-31 16:16:20,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 214 states have (on average 1.4906542056074767) internal successors, (319), 214 states have internal predecessors, (319), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:20,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 323 transitions. [2022-01-31 16:16:20,191 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 323 transitions. Word has length 30 [2022-01-31 16:16:20,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:16:20,191 INFO L470 AbstractCegarLoop]: Abstraction has 219 states and 323 transitions. [2022-01-31 16:16:20,191 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 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 16:16:20,191 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 323 transitions. [2022-01-31 16:16:20,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-01-31 16:16:20,193 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:16:20,193 INFO L514 BasicCegarLoop]: trace histogram [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] [2022-01-31 16:16:20,193 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-31 16:16:20,194 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:16:20,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:16:20,194 INFO L85 PathProgramCache]: Analyzing trace with hash -1296976805, now seen corresponding path program 1 times [2022-01-31 16:16:20,194 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:16:20,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701954294] [2022-01-31 16:16:20,195 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 16:16:20,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:20,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:16:20,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:20,246 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 16:16:20,246 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:16:20,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701954294] [2022-01-31 16:16:20,246 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [701954294] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:16:20,247 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:16:20,247 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:16:20,247 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971269689] [2022-01-31 16:16:20,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:16:20,248 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:16:20,248 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:16:20,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:16:20,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:16:20,248 INFO L87 Difference]: Start difference. First operand 219 states and 323 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 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 16:16:20,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:16:20,419 INFO L93 Difference]: Finished difference Result 246 states and 359 transitions. [2022-01-31 16:16:20,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:16:20,420 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 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 44 [2022-01-31 16:16:20,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:16:20,421 INFO L225 Difference]: With dead ends: 246 [2022-01-31 16:16:20,421 INFO L226 Difference]: Without dead ends: 246 [2022-01-31 16:16:20,422 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 16:16:20,423 INFO L933 BasicCegarLoop]: 186 mSDtfsCounter, 193 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 16:16:20,423 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [193 Valid, 193 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-31 16:16:20,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2022-01-31 16:16:20,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 236. [2022-01-31 16:16:20,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 231 states have (on average 1.4761904761904763) internal successors, (341), 231 states have internal predecessors, (341), 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 16:16:20,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 345 transitions. [2022-01-31 16:16:20,435 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 345 transitions. Word has length 44 [2022-01-31 16:16:20,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:16:20,435 INFO L470 AbstractCegarLoop]: Abstraction has 236 states and 345 transitions. [2022-01-31 16:16:20,435 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 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 16:16:20,435 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 345 transitions. [2022-01-31 16:16:20,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-01-31 16:16:20,437 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:16:20,437 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:16:20,437 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-31 16:16:20,437 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:16:20,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:16:20,438 INFO L85 PathProgramCache]: Analyzing trace with hash -714612934, now seen corresponding path program 1 times [2022-01-31 16:16:20,438 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:16:20,438 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150415996] [2022-01-31 16:16:20,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:20,438 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:16:20,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:20,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:16:20,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:20,485 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-01-31 16:16:20,485 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:16:20,485 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150415996] [2022-01-31 16:16:20,485 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150415996] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:16:20,485 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:16:20,485 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:16:20,485 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122950928] [2022-01-31 16:16:20,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:16:20,486 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:16:20,486 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:16:20,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:16:20,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:16:20,487 INFO L87 Difference]: Start difference. First operand 236 states and 345 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 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 16:16:20,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:16:20,708 INFO L93 Difference]: Finished difference Result 286 states and 408 transitions. [2022-01-31 16:16:20,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:16:20,708 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 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 61 [2022-01-31 16:16:20,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:16:20,710 INFO L225 Difference]: With dead ends: 286 [2022-01-31 16:16:20,710 INFO L226 Difference]: Without dead ends: 286 [2022-01-31 16:16:20,713 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 16:16:20,716 INFO L933 BasicCegarLoop]: 186 mSDtfsCounter, 192 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 16:16:20,717 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [192 Valid, 193 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-31 16:16:20,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2022-01-31 16:16:20,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 276. [2022-01-31 16:16:20,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276 states, 271 states have (on average 1.4428044280442804) internal successors, (391), 271 states have internal predecessors, (391), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:20,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 395 transitions. [2022-01-31 16:16:20,732 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 395 transitions. Word has length 61 [2022-01-31 16:16:20,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:16:20,732 INFO L470 AbstractCegarLoop]: Abstraction has 276 states and 395 transitions. [2022-01-31 16:16:20,732 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 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 16:16:20,733 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 395 transitions. [2022-01-31 16:16:20,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-01-31 16:16:20,734 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:16:20,734 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:16:20,735 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-31 16:16:20,735 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:16:20,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:16:20,735 INFO L85 PathProgramCache]: Analyzing trace with hash -1959377415, now seen corresponding path program 1 times [2022-01-31 16:16:20,735 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:16:20,735 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155232604] [2022-01-31 16:16:20,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:20,736 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:16:20,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:20,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:16:20,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:20,785 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-01-31 16:16:20,786 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:16:20,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155232604] [2022-01-31 16:16:20,786 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155232604] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:16:20,786 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:16:20,786 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:16:20,786 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923608626] [2022-01-31 16:16:20,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:16:20,787 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:16:20,787 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:16:20,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:16:20,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:16:20,787 INFO L87 Difference]: Start difference. First operand 276 states and 395 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 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 16:16:21,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:16:21,050 INFO L93 Difference]: Finished difference Result 376 states and 517 transitions. [2022-01-31 16:16:21,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:16:21,051 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 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 61 [2022-01-31 16:16:21,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:16:21,053 INFO L225 Difference]: With dead ends: 376 [2022-01-31 16:16:21,053 INFO L226 Difference]: Without dead ends: 374 [2022-01-31 16:16:21,053 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 16:16:21,054 INFO L933 BasicCegarLoop]: 198 mSDtfsCounter, 208 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 16:16:21,055 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [208 Valid, 205 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-31 16:16:21,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2022-01-31 16:16:21,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 356. [2022-01-31 16:16:21,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 356 states, 351 states have (on average 1.393162393162393) internal successors, (489), 351 states have internal predecessors, (489), 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 16:16:21,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 493 transitions. [2022-01-31 16:16:21,065 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 493 transitions. Word has length 61 [2022-01-31 16:16:21,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:16:21,066 INFO L470 AbstractCegarLoop]: Abstraction has 356 states and 493 transitions. [2022-01-31 16:16:21,066 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 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 16:16:21,066 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 493 transitions. [2022-01-31 16:16:21,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-01-31 16:16:21,068 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:16:21,068 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:16:21,069 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-31 16:16:21,069 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:16:21,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:16:21,069 INFO L85 PathProgramCache]: Analyzing trace with hash -1525326578, now seen corresponding path program 1 times [2022-01-31 16:16:21,069 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:16:21,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141418916] [2022-01-31 16:16:21,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:21,070 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:16:21,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:21,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:16:21,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:21,152 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-01-31 16:16:21,152 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:16:21,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141418916] [2022-01-31 16:16:21,152 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141418916] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:16:21,152 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:16:21,153 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:16:21,153 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457567547] [2022-01-31 16:16:21,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:16:21,153 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:16:21,153 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:16:21,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:16:21,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:16:21,154 INFO L87 Difference]: Start difference. First operand 356 states and 493 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 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 16:16:21,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:16:21,341 INFO L93 Difference]: Finished difference Result 462 states and 661 transitions. [2022-01-31 16:16:21,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:16:21,342 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 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 74 [2022-01-31 16:16:21,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:16:21,343 INFO L225 Difference]: With dead ends: 462 [2022-01-31 16:16:21,343 INFO L226 Difference]: Without dead ends: 460 [2022-01-31 16:16:21,344 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 16:16:21,344 INFO L933 BasicCegarLoop]: 174 mSDtfsCounter, 295 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 16:16:21,345 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [295 Valid, 181 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-31 16:16:21,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 460 states. [2022-01-31 16:16:21,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 460 to 434. [2022-01-31 16:16:21,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 434 states, 429 states have (on average 1.4522144522144522) internal successors, (623), 429 states have internal predecessors, (623), 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 16:16:21,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 627 transitions. [2022-01-31 16:16:21,353 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 627 transitions. Word has length 74 [2022-01-31 16:16:21,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:16:21,354 INFO L470 AbstractCegarLoop]: Abstraction has 434 states and 627 transitions. [2022-01-31 16:16:21,354 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 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 16:16:21,354 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 627 transitions. [2022-01-31 16:16:21,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-01-31 16:16:21,356 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:16:21,356 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1] [2022-01-31 16:16:21,356 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-31 16:16:21,356 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:16:21,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:16:21,356 INFO L85 PathProgramCache]: Analyzing trace with hash -373342279, now seen corresponding path program 1 times [2022-01-31 16:16:21,357 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:16:21,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454988076] [2022-01-31 16:16:21,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:21,357 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:16:21,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:21,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:16:21,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:21,393 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-01-31 16:16:21,393 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:16:21,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454988076] [2022-01-31 16:16:21,393 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454988076] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:16:21,393 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:16:21,393 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:16:21,393 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858322398] [2022-01-31 16:16:21,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:16:21,394 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:16:21,394 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:16:21,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:16:21,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:16:21,394 INFO L87 Difference]: Start difference. First operand 434 states and 627 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 3 states have internal predecessors, (56), 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 16:16:21,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:16:21,573 INFO L93 Difference]: Finished difference Result 482 states and 686 transitions. [2022-01-31 16:16:21,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:16:21,574 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 3 states have internal predecessors, (56), 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 78 [2022-01-31 16:16:21,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:16:21,575 INFO L225 Difference]: With dead ends: 482 [2022-01-31 16:16:21,576 INFO L226 Difference]: Without dead ends: 482 [2022-01-31 16:16:21,576 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 16:16:21,576 INFO L933 BasicCegarLoop]: 186 mSDtfsCounter, 185 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 16:16:21,577 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [185 Valid, 193 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-31 16:16:21,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2022-01-31 16:16:21,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 476. [2022-01-31 16:16:21,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 476 states, 471 states have (on average 1.4331210191082802) internal successors, (675), 471 states have internal predecessors, (675), 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 16:16:21,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 476 states to 476 states and 679 transitions. [2022-01-31 16:16:21,585 INFO L78 Accepts]: Start accepts. Automaton has 476 states and 679 transitions. Word has length 78 [2022-01-31 16:16:21,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:16:21,585 INFO L470 AbstractCegarLoop]: Abstraction has 476 states and 679 transitions. [2022-01-31 16:16:21,585 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 3 states have internal predecessors, (56), 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 16:16:21,585 INFO L276 IsEmpty]: Start isEmpty. Operand 476 states and 679 transitions. [2022-01-31 16:16:21,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-01-31 16:16:21,587 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:16:21,587 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, 1] [2022-01-31 16:16:21,587 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-31 16:16:21,587 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:16:21,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:16:21,587 INFO L85 PathProgramCache]: Analyzing trace with hash 1482970623, now seen corresponding path program 1 times [2022-01-31 16:16:21,588 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:16:21,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593861727] [2022-01-31 16:16:21,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:21,588 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:16:21,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:21,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:16:21,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:21,640 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-01-31 16:16:21,640 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:16:21,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593861727] [2022-01-31 16:16:21,640 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593861727] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:16:21,640 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:16:21,640 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:16:21,640 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915816529] [2022-01-31 16:16:21,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:16:21,641 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:16:21,641 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:16:21,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:16:21,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:16:21,641 INFO L87 Difference]: Start difference. First operand 476 states and 679 transitions. Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 3 states have internal predecessors, (74), 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 16:16:21,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:16:21,803 INFO L93 Difference]: Finished difference Result 715 states and 1018 transitions. [2022-01-31 16:16:21,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:16:21,803 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 3 states have internal predecessors, (74), 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 98 [2022-01-31 16:16:21,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:16:21,805 INFO L225 Difference]: With dead ends: 715 [2022-01-31 16:16:21,805 INFO L226 Difference]: Without dead ends: 715 [2022-01-31 16:16:21,806 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 16:16:21,806 INFO L933 BasicCegarLoop]: 317 mSDtfsCounter, 295 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 324 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-31 16:16:21,807 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [295 Valid, 324 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-31 16:16:21,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 715 states. [2022-01-31 16:16:21,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 715 to 715. [2022-01-31 16:16:21,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 715 states, 710 states have (on average 1.4281690140845071) internal successors, (1014), 710 states have internal predecessors, (1014), 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 16:16:21,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 715 states to 715 states and 1018 transitions. [2022-01-31 16:16:21,818 INFO L78 Accepts]: Start accepts. Automaton has 715 states and 1018 transitions. Word has length 98 [2022-01-31 16:16:21,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:16:21,818 INFO L470 AbstractCegarLoop]: Abstraction has 715 states and 1018 transitions. [2022-01-31 16:16:21,818 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 3 states have internal predecessors, (74), 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 16:16:21,818 INFO L276 IsEmpty]: Start isEmpty. Operand 715 states and 1018 transitions. [2022-01-31 16:16:21,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-01-31 16:16:21,819 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:16:21,820 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, 1, 1] [2022-01-31 16:16:21,820 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-31 16:16:21,820 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:16:21,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:16:21,820 INFO L85 PathProgramCache]: Analyzing trace with hash 1275544748, now seen corresponding path program 1 times [2022-01-31 16:16:21,820 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:16:21,820 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916552455] [2022-01-31 16:16:21,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:21,821 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:16:21,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:21,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:16:21,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:21,874 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-01-31 16:16:21,874 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:16:21,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916552455] [2022-01-31 16:16:21,875 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1916552455] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:16:21,875 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:16:21,875 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:16:21,875 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387544516] [2022-01-31 16:16:21,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:16:21,875 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:16:21,875 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:16:21,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:16:21,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:16:21,876 INFO L87 Difference]: Start difference. First operand 715 states and 1018 transitions. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 3 states have internal predecessors, (67), 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 16:16:22,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:16:22,019 INFO L93 Difference]: Finished difference Result 736 states and 1045 transitions. [2022-01-31 16:16:22,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:16:22,019 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 3 states have internal predecessors, (67), 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 99 [2022-01-31 16:16:22,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:16:22,022 INFO L225 Difference]: With dead ends: 736 [2022-01-31 16:16:22,022 INFO L226 Difference]: Without dead ends: 736 [2022-01-31 16:16:22,022 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 16:16:22,022 INFO L933 BasicCegarLoop]: 197 mSDtfsCounter, 183 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-31 16:16:22,023 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [183 Valid, 204 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-31 16:16:22,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 736 states. [2022-01-31 16:16:22,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 736 to 736. [2022-01-31 16:16:22,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 736 states, 731 states have (on average 1.424076607387141) internal successors, (1041), 731 states have internal predecessors, (1041), 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 16:16:22,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 736 states to 736 states and 1045 transitions. [2022-01-31 16:16:22,056 INFO L78 Accepts]: Start accepts. Automaton has 736 states and 1045 transitions. Word has length 99 [2022-01-31 16:16:22,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:16:22,056 INFO L470 AbstractCegarLoop]: Abstraction has 736 states and 1045 transitions. [2022-01-31 16:16:22,056 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 3 states have internal predecessors, (67), 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 16:16:22,057 INFO L276 IsEmpty]: Start isEmpty. Operand 736 states and 1045 transitions. [2022-01-31 16:16:22,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-01-31 16:16:22,061 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:16:22,061 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, 1, 1, 1] [2022-01-31 16:16:22,061 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-31 16:16:22,062 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:16:22,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:16:22,062 INFO L85 PathProgramCache]: Analyzing trace with hash 1728650536, now seen corresponding path program 1 times [2022-01-31 16:16:22,062 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:16:22,062 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476958042] [2022-01-31 16:16:22,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:22,063 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:16:22,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:22,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:16:22,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:22,152 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2022-01-31 16:16:22,152 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:16:22,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476958042] [2022-01-31 16:16:22,152 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1476958042] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:16:22,152 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:16:22,152 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:16:22,152 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562633418] [2022-01-31 16:16:22,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:16:22,153 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:16:22,153 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:16:22,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:16:22,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:16:22,153 INFO L87 Difference]: Start difference. First operand 736 states and 1045 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 16:16:22,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:16:22,283 INFO L93 Difference]: Finished difference Result 976 states and 1390 transitions. [2022-01-31 16:16:22,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:16:22,283 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 100 [2022-01-31 16:16:22,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:16:22,286 INFO L225 Difference]: With dead ends: 976 [2022-01-31 16:16:22,286 INFO L226 Difference]: Without dead ends: 976 [2022-01-31 16:16:22,287 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 16:16:22,288 INFO L933 BasicCegarLoop]: 164 mSDtfsCounter, 459 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 459 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-31 16:16:22,288 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [459 Valid, 171 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-31 16:16:22,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 976 states. [2022-01-31 16:16:22,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 976 to 976. [2022-01-31 16:16:22,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 976 states, 971 states have (on average 1.427394438722966) internal successors, (1386), 971 states have internal predecessors, (1386), 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 16:16:22,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 976 states to 976 states and 1390 transitions. [2022-01-31 16:16:22,315 INFO L78 Accepts]: Start accepts. Automaton has 976 states and 1390 transitions. Word has length 100 [2022-01-31 16:16:22,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:16:22,315 INFO L470 AbstractCegarLoop]: Abstraction has 976 states and 1390 transitions. [2022-01-31 16:16:22,315 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 16:16:22,315 INFO L276 IsEmpty]: Start isEmpty. Operand 976 states and 1390 transitions. [2022-01-31 16:16:22,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-01-31 16:16:22,335 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:16:22,336 INFO L514 BasicCegarLoop]: trace histogram [8, 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, 1, 1, 1, 1, 1, 1, 1, 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 16:16:22,336 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-31 16:16:22,336 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:16:22,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:16:22,336 INFO L85 PathProgramCache]: Analyzing trace with hash 1207748638, now seen corresponding path program 1 times [2022-01-31 16:16:22,336 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:16:22,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083044346] [2022-01-31 16:16:22,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:22,337 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:16:22,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:22,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:16:22,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:22,416 INFO L134 CoverageAnalysis]: Checked inductivity of 346 backedges. 240 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2022-01-31 16:16:22,416 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:16:22,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083044346] [2022-01-31 16:16:22,416 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083044346] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:16:22,417 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:16:22,417 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:16:22,417 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328319870] [2022-01-31 16:16:22,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:16:22,418 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:16:22,418 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:16:22,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:16:22,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:16:22,419 INFO L87 Difference]: Start difference. First operand 976 states and 1390 transitions. Second operand has 4 states, 4 states have (on average 23.0) internal successors, (92), 3 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:22,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:16:22,615 INFO L93 Difference]: Finished difference Result 1180 states and 1686 transitions. [2022-01-31 16:16:22,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:16:22,616 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 3 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 155 [2022-01-31 16:16:22,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:16:22,620 INFO L225 Difference]: With dead ends: 1180 [2022-01-31 16:16:22,621 INFO L226 Difference]: Without dead ends: 1172 [2022-01-31 16:16:22,622 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 16:16:22,622 INFO L933 BasicCegarLoop]: 198 mSDtfsCounter, 235 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 16:16:22,623 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [235 Valid, 205 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-31 16:16:22,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1172 states. [2022-01-31 16:16:22,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1172 to 1132. [2022-01-31 16:16:22,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1132 states, 1127 states have (on average 1.442768411712511) internal successors, (1626), 1127 states have internal predecessors, (1626), 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 16:16:22,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1132 states to 1132 states and 1630 transitions. [2022-01-31 16:16:22,645 INFO L78 Accepts]: Start accepts. Automaton has 1132 states and 1630 transitions. Word has length 155 [2022-01-31 16:16:22,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:16:22,645 INFO L470 AbstractCegarLoop]: Abstraction has 1132 states and 1630 transitions. [2022-01-31 16:16:22,645 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 3 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:22,645 INFO L276 IsEmpty]: Start isEmpty. Operand 1132 states and 1630 transitions. [2022-01-31 16:16:22,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2022-01-31 16:16:22,648 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:16:22,649 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 6, 6, 4, 4, 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] [2022-01-31 16:16:22,649 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-31 16:16:22,649 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:16:22,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:16:22,650 INFO L85 PathProgramCache]: Analyzing trace with hash 645369310, now seen corresponding path program 1 times [2022-01-31 16:16:22,650 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:16:22,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990127464] [2022-01-31 16:16:22,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:22,650 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:16:22,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:22,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:16:22,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:22,715 INFO L134 CoverageAnalysis]: Checked inductivity of 456 backedges. 314 proven. 0 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2022-01-31 16:16:22,715 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:16:22,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990127464] [2022-01-31 16:16:22,721 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990127464] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:16:22,722 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:16:22,722 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:16:22,722 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703422853] [2022-01-31 16:16:22,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:16:22,722 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:16:22,722 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:16:22,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:16:22,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:16:22,723 INFO L87 Difference]: Start difference. First operand 1132 states and 1630 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 16:16:22,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:16:22,890 INFO L93 Difference]: Finished difference Result 1238 states and 1756 transitions. [2022-01-31 16:16:22,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:16:22,891 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 191 [2022-01-31 16:16:22,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:16:22,895 INFO L225 Difference]: With dead ends: 1238 [2022-01-31 16:16:22,895 INFO L226 Difference]: Without dead ends: 1238 [2022-01-31 16:16:22,895 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 16:16:22,896 INFO L933 BasicCegarLoop]: 186 mSDtfsCounter, 187 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-31 16:16:22,896 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [187 Valid, 193 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-31 16:16:22,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1238 states. [2022-01-31 16:16:22,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1238 to 1224. [2022-01-31 16:16:22,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1224 states, 1219 states have (on average 1.4257588187038557) internal successors, (1738), 1219 states have internal predecessors, (1738), 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 16:16:22,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1224 states to 1224 states and 1742 transitions. [2022-01-31 16:16:22,916 INFO L78 Accepts]: Start accepts. Automaton has 1224 states and 1742 transitions. Word has length 191 [2022-01-31 16:16:22,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:16:22,916 INFO L470 AbstractCegarLoop]: Abstraction has 1224 states and 1742 transitions. [2022-01-31 16:16:22,916 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 16:16:22,916 INFO L276 IsEmpty]: Start isEmpty. Operand 1224 states and 1742 transitions. [2022-01-31 16:16:22,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2022-01-31 16:16:22,919 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:16:22,920 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:16:22,920 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-31 16:16:22,920 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:16:22,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:16:22,923 INFO L85 PathProgramCache]: Analyzing trace with hash -1315099224, now seen corresponding path program 1 times [2022-01-31 16:16:22,923 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:16:22,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665926218] [2022-01-31 16:16:22,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:22,923 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:16:22,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:22,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:16:22,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:22,976 INFO L134 CoverageAnalysis]: Checked inductivity of 586 backedges. 394 proven. 0 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2022-01-31 16:16:22,977 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:16:22,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665926218] [2022-01-31 16:16:22,977 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665926218] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:16:22,977 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:16:22,977 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:16:22,977 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710398065] [2022-01-31 16:16:22,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:16:22,978 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:16:22,978 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:16:22,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:16:22,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:16:22,978 INFO L87 Difference]: Start difference. First operand 1224 states and 1742 transitions. Second operand has 4 states, 4 states have (on average 30.75) internal successors, (123), 3 states have internal predecessors, (123), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:23,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:16:23,152 INFO L93 Difference]: Finished difference Result 1336 states and 1878 transitions. [2022-01-31 16:16:23,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:16:23,153 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 3 states have internal predecessors, (123), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 212 [2022-01-31 16:16:23,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:16:23,157 INFO L225 Difference]: With dead ends: 1336 [2022-01-31 16:16:23,157 INFO L226 Difference]: Without dead ends: 1336 [2022-01-31 16:16:23,157 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 16:16:23,158 INFO L933 BasicCegarLoop]: 186 mSDtfsCounter, 184 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 16:16:23,158 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [184 Valid, 193 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-31 16:16:23,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1336 states. [2022-01-31 16:16:23,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1336 to 1324. [2022-01-31 16:16:23,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1324 states, 1319 states have (on average 1.4086429112964367) internal successors, (1858), 1319 states have internal predecessors, (1858), 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 16:16:23,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1324 states to 1324 states and 1862 transitions. [2022-01-31 16:16:23,180 INFO L78 Accepts]: Start accepts. Automaton has 1324 states and 1862 transitions. Word has length 212 [2022-01-31 16:16:23,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:16:23,180 INFO L470 AbstractCegarLoop]: Abstraction has 1324 states and 1862 transitions. [2022-01-31 16:16:23,181 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 3 states have internal predecessors, (123), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:23,181 INFO L276 IsEmpty]: Start isEmpty. Operand 1324 states and 1862 transitions. [2022-01-31 16:16:23,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2022-01-31 16:16:23,183 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:16:23,183 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:16:23,184 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-31 16:16:23,184 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:16:23,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:16:23,184 INFO L85 PathProgramCache]: Analyzing trace with hash 2055655597, now seen corresponding path program 1 times [2022-01-31 16:16:23,184 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:16:23,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439413499] [2022-01-31 16:16:23,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:23,184 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:16:23,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:23,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:16:23,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:23,228 INFO L134 CoverageAnalysis]: Checked inductivity of 734 backedges. 474 proven. 0 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2022-01-31 16:16:23,229 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:16:23,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439413499] [2022-01-31 16:16:23,229 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439413499] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:16:23,229 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:16:23,229 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:16:23,229 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753560456] [2022-01-31 16:16:23,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:16:23,230 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:16:23,230 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:16:23,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:16:23,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:16:23,230 INFO L87 Difference]: Start difference. First operand 1324 states and 1862 transitions. Second operand has 4 states, 4 states have (on average 32.5) internal successors, (130), 3 states have internal predecessors, (130), 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 16:16:23,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:16:23,392 INFO L93 Difference]: Finished difference Result 1444 states and 2002 transitions. [2022-01-31 16:16:23,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:16:23,393 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 3 states have internal predecessors, (130), 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 16:16:23,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:16:23,397 INFO L225 Difference]: With dead ends: 1444 [2022-01-31 16:16:23,397 INFO L226 Difference]: Without dead ends: 1444 [2022-01-31 16:16:23,397 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 16:16:23,398 INFO L933 BasicCegarLoop]: 186 mSDtfsCounter, 182 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-31 16:16:23,398 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [182 Valid, 193 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-31 16:16:23,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1444 states. [2022-01-31 16:16:23,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1444 to 1436. [2022-01-31 16:16:23,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1436 states, 1431 states have (on average 1.3906359189378057) internal successors, (1990), 1431 states have internal predecessors, (1990), 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 16:16:23,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1436 states to 1436 states and 1994 transitions. [2022-01-31 16:16:23,419 INFO L78 Accepts]: Start accepts. Automaton has 1436 states and 1994 transitions. Word has length 236 [2022-01-31 16:16:23,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:16:23,420 INFO L470 AbstractCegarLoop]: Abstraction has 1436 states and 1994 transitions. [2022-01-31 16:16:23,420 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 3 states have internal predecessors, (130), 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 16:16:23,420 INFO L276 IsEmpty]: Start isEmpty. Operand 1436 states and 1994 transitions. [2022-01-31 16:16:23,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2022-01-31 16:16:23,424 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:16:23,424 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:16:23,424 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-31 16:16:23,425 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:16:23,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:16:23,425 INFO L85 PathProgramCache]: Analyzing trace with hash 909115084, now seen corresponding path program 1 times [2022-01-31 16:16:23,425 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:16:23,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344224306] [2022-01-31 16:16:23,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:23,426 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:16:23,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:23,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:16:23,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:23,488 INFO L134 CoverageAnalysis]: Checked inductivity of 734 backedges. 474 proven. 0 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2022-01-31 16:16:23,488 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:16:23,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344224306] [2022-01-31 16:16:23,489 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344224306] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:16:23,489 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:16:23,489 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:16:23,489 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895406500] [2022-01-31 16:16:23,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:16:23,489 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:16:23,489 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:16:23,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:16:23,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:16:23,490 INFO L87 Difference]: Start difference. First operand 1436 states and 1994 transitions. Second operand has 4 states, 4 states have (on average 32.5) internal successors, (130), 3 states have internal predecessors, (130), 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 16:16:23,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:16:23,686 INFO L93 Difference]: Finished difference Result 1572 states and 2154 transitions. [2022-01-31 16:16:23,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:16:23,686 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 3 states have internal predecessors, (130), 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 16:16:23,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:16:23,690 INFO L225 Difference]: With dead ends: 1572 [2022-01-31 16:16:23,690 INFO L226 Difference]: Without dead ends: 1572 [2022-01-31 16:16:23,691 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 16:16:23,691 INFO L933 BasicCegarLoop]: 187 mSDtfsCounter, 184 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 16:16:23,691 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [184 Valid, 194 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-31 16:16:23,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1572 states. [2022-01-31 16:16:23,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1572 to 1560. [2022-01-31 16:16:23,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1560 states, 1555 states have (on average 1.372347266881029) internal successors, (2134), 1555 states have internal predecessors, (2134), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:23,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1560 states to 1560 states and 2138 transitions. [2022-01-31 16:16:23,712 INFO L78 Accepts]: Start accepts. Automaton has 1560 states and 2138 transitions. Word has length 236 [2022-01-31 16:16:23,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:16:23,713 INFO L470 AbstractCegarLoop]: Abstraction has 1560 states and 2138 transitions. [2022-01-31 16:16:23,713 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 3 states have internal predecessors, (130), 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 16:16:23,713 INFO L276 IsEmpty]: Start isEmpty. Operand 1560 states and 2138 transitions. [2022-01-31 16:16:23,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2022-01-31 16:16:23,717 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:16:23,717 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:16:23,717 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-31 16:16:23,717 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:16:23,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:16:23,717 INFO L85 PathProgramCache]: Analyzing trace with hash 1731324572, now seen corresponding path program 1 times [2022-01-31 16:16:23,717 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:16:23,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831456418] [2022-01-31 16:16:23,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:23,718 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:16:23,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:23,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:16:23,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:23,769 INFO L134 CoverageAnalysis]: Checked inductivity of 908 backedges. 588 proven. 0 refuted. 0 times theorem prover too weak. 320 trivial. 0 not checked. [2022-01-31 16:16:23,769 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:16:23,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831456418] [2022-01-31 16:16:23,769 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831456418] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:16:23,769 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:16:23,769 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:16:23,769 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244203606] [2022-01-31 16:16:23,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:16:23,770 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:16:23,770 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:16:23,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:16:23,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:16:23,770 INFO L87 Difference]: Start difference. First operand 1560 states and 2138 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 16:16:23,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:16:23,913 INFO L93 Difference]: Finished difference Result 3103 states and 4251 transitions. [2022-01-31 16:16:23,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:16:23,914 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 16:16:23,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:16:23,937 INFO L225 Difference]: With dead ends: 3103 [2022-01-31 16:16:23,937 INFO L226 Difference]: Without dead ends: 3103 [2022-01-31 16:16:23,938 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 16:16:23,939 INFO L933 BasicCegarLoop]: 326 mSDtfsCounter, 299 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 299 SdHoareTripleChecker+Valid, 333 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-31 16:16:23,939 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [299 Valid, 333 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-31 16:16:23,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3103 states. [2022-01-31 16:16:23,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3103 to 3101. [2022-01-31 16:16:23,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3101 states, 3096 states have (on average 1.3714470284237725) internal successors, (4246), 3096 states have internal predecessors, (4246), 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 16:16:23,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3101 states to 3101 states and 4250 transitions. [2022-01-31 16:16:23,979 INFO L78 Accepts]: Start accepts. Automaton has 3101 states and 4250 transitions. Word has length 266 [2022-01-31 16:16:23,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:16:23,980 INFO L470 AbstractCegarLoop]: Abstraction has 3101 states and 4250 transitions. [2022-01-31 16:16:23,980 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 16:16:23,980 INFO L276 IsEmpty]: Start isEmpty. Operand 3101 states and 4250 transitions. [2022-01-31 16:16:23,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2022-01-31 16:16:23,984 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:16:23,984 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:16:23,984 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-31 16:16:23,985 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:16:23,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:16:23,985 INFO L85 PathProgramCache]: Analyzing trace with hash 584784059, now seen corresponding path program 1 times [2022-01-31 16:16:23,985 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:16:23,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282486415] [2022-01-31 16:16:23,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:23,986 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:16:23,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:24,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:16:24,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:24,033 INFO L134 CoverageAnalysis]: Checked inductivity of 908 backedges. 560 proven. 0 refuted. 0 times theorem prover too weak. 348 trivial. 0 not checked. [2022-01-31 16:16:24,033 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:16:24,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282486415] [2022-01-31 16:16:24,035 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282486415] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:16:24,035 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:16:24,035 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:16:24,035 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415136739] [2022-01-31 16:16:24,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:16:24,035 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:16:24,035 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:16:24,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:16:24,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:16:24,036 INFO L87 Difference]: Start difference. First operand 3101 states and 4250 transitions. Second operand has 4 states, 4 states have (on average 35.25) internal successors, (141), 3 states have internal predecessors, (141), 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 16:16:24,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:16:24,224 INFO L93 Difference]: Finished difference Result 3401 states and 4590 transitions. [2022-01-31 16:16:24,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:16:24,224 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 3 states have internal predecessors, (141), 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 16:16:24,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:16:24,233 INFO L225 Difference]: With dead ends: 3401 [2022-01-31 16:16:24,233 INFO L226 Difference]: Without dead ends: 3401 [2022-01-31 16:16:24,234 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 16:16:24,234 INFO L933 BasicCegarLoop]: 187 mSDtfsCounter, 183 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 16:16:24,234 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [183 Valid, 194 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-31 16:16:24,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3401 states. [2022-01-31 16:16:24,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3401 to 3385. [2022-01-31 16:16:24,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3385 states, 3380 states have (on average 1.3520710059171597) internal successors, (4570), 3380 states have internal predecessors, (4570), 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 16:16:24,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3385 states to 3385 states and 4574 transitions. [2022-01-31 16:16:24,285 INFO L78 Accepts]: Start accepts. Automaton has 3385 states and 4574 transitions. Word has length 266 [2022-01-31 16:16:24,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:16:24,285 INFO L470 AbstractCegarLoop]: Abstraction has 3385 states and 4574 transitions. [2022-01-31 16:16:24,286 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 3 states have internal predecessors, (141), 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 16:16:24,286 INFO L276 IsEmpty]: Start isEmpty. Operand 3385 states and 4574 transitions. [2022-01-31 16:16:24,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2022-01-31 16:16:24,291 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:16:24,292 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 10, 10, 8, 8, 6, 6, 4, 4, 3, 3, 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 16:16:24,292 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-31 16:16:24,292 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:16:24,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:16:24,292 INFO L85 PathProgramCache]: Analyzing trace with hash -1895653822, now seen corresponding path program 1 times [2022-01-31 16:16:24,292 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:16:24,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277645180] [2022-01-31 16:16:24,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:24,293 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:16:24,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:24,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:16:24,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:24,340 INFO L134 CoverageAnalysis]: Checked inductivity of 1100 backedges. 642 proven. 0 refuted. 0 times theorem prover too weak. 458 trivial. 0 not checked. [2022-01-31 16:16:24,340 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:16:24,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277645180] [2022-01-31 16:16:24,341 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277645180] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:16:24,341 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:16:24,341 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:16:24,341 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178553795] [2022-01-31 16:16:24,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:16:24,341 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:16:24,341 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:16:24,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:16:24,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:16:24,342 INFO L87 Difference]: Start difference. First operand 3385 states and 4574 transitions. Second operand has 4 states, 4 states have (on average 36.0) internal successors, (144), 3 states have internal predecessors, (144), 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 16:16:24,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:16:24,514 INFO L93 Difference]: Finished difference Result 3533 states and 4742 transitions. [2022-01-31 16:16:24,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:16:24,514 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 3 states have internal predecessors, (144), 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 290 [2022-01-31 16:16:24,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:16:24,523 INFO L225 Difference]: With dead ends: 3533 [2022-01-31 16:16:24,523 INFO L226 Difference]: Without dead ends: 3533 [2022-01-31 16:16:24,523 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 16:16:24,524 INFO L933 BasicCegarLoop]: 186 mSDtfsCounter, 182 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 16:16:24,524 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [182 Valid, 193 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-31 16:16:24,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3533 states. [2022-01-31 16:16:24,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3533 to 3517. [2022-01-31 16:16:24,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3517 states, 3512 states have (on average 1.3445330296127562) internal successors, (4722), 3512 states have internal predecessors, (4722), 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 16:16:24,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3517 states to 3517 states and 4726 transitions. [2022-01-31 16:16:24,605 INFO L78 Accepts]: Start accepts. Automaton has 3517 states and 4726 transitions. Word has length 290 [2022-01-31 16:16:24,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:16:24,606 INFO L470 AbstractCegarLoop]: Abstraction has 3517 states and 4726 transitions. [2022-01-31 16:16:24,606 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 3 states have internal predecessors, (144), 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 16:16:24,606 INFO L276 IsEmpty]: Start isEmpty. Operand 3517 states and 4726 transitions. [2022-01-31 16:16:24,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2022-01-31 16:16:24,612 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:16:24,612 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 12, 12, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:16:24,612 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-31 16:16:24,612 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:16:24,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:16:24,613 INFO L85 PathProgramCache]: Analyzing trace with hash 1898341703, now seen corresponding path program 1 times [2022-01-31 16:16:24,613 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:16:24,613 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584911750] [2022-01-31 16:16:24,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:24,613 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:16:24,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:24,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:16:24,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:24,664 INFO L134 CoverageAnalysis]: Checked inductivity of 1112 backedges. 542 proven. 0 refuted. 0 times theorem prover too weak. 570 trivial. 0 not checked. [2022-01-31 16:16:24,665 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:16:24,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584911750] [2022-01-31 16:16:24,665 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584911750] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:16:24,665 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:16:24,665 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:16:24,665 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130067286] [2022-01-31 16:16:24,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:16:24,665 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:16:24,666 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:16:24,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:16:24,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:16:24,667 INFO L87 Difference]: Start difference. First operand 3517 states and 4726 transitions. Second operand has 4 states, 4 states have (on average 33.25) internal successors, (133), 3 states have internal predecessors, (133), 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 16:16:24,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:16:24,868 INFO L93 Difference]: Finished difference Result 3917 states and 5198 transitions. [2022-01-31 16:16:24,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:16:24,869 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.25) internal successors, (133), 3 states have internal predecessors, (133), 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 16:16:24,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:16:24,878 INFO L225 Difference]: With dead ends: 3917 [2022-01-31 16:16:24,878 INFO L226 Difference]: Without dead ends: 3917 [2022-01-31 16:16:24,878 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 16:16:24,880 INFO L933 BasicCegarLoop]: 187 mSDtfsCounter, 230 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 16:16:24,880 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [230 Valid, 194 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-31 16:16:24,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3917 states. [2022-01-31 16:16:24,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3917 to 3829. [2022-01-31 16:16:24,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3829 states, 3824 states have (on average 1.3310669456066946) internal successors, (5090), 3824 states have internal predecessors, (5090), 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 16:16:24,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3829 states to 3829 states and 5094 transitions. [2022-01-31 16:16:24,940 INFO L78 Accepts]: Start accepts. Automaton has 3829 states and 5094 transitions. Word has length 301 [2022-01-31 16:16:24,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:16:24,940 INFO L470 AbstractCegarLoop]: Abstraction has 3829 states and 5094 transitions. [2022-01-31 16:16:24,941 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.25) internal successors, (133), 3 states have internal predecessors, (133), 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 16:16:24,941 INFO L276 IsEmpty]: Start isEmpty. Operand 3829 states and 5094 transitions. [2022-01-31 16:16:24,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2022-01-31 16:16:24,947 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:16:24,947 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 13, 13, 13, 13, 13, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:16:24,947 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-31 16:16:24,947 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:16:24,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:16:24,948 INFO L85 PathProgramCache]: Analyzing trace with hash -1338697851, now seen corresponding path program 1 times [2022-01-31 16:16:24,948 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:16:24,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051066185] [2022-01-31 16:16:24,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:24,948 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:16:24,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:24,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:16:24,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:24,995 INFO L134 CoverageAnalysis]: Checked inductivity of 1201 backedges. 595 proven. 0 refuted. 0 times theorem prover too weak. 606 trivial. 0 not checked. [2022-01-31 16:16:24,995 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:16:24,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051066185] [2022-01-31 16:16:24,995 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051066185] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:16:24,995 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:16:24,995 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:16:24,995 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157005542] [2022-01-31 16:16:24,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:16:24,996 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:16:24,996 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:16:24,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:16:24,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:16:24,997 INFO L87 Difference]: Start difference. First operand 3829 states and 5094 transitions. Second operand has 4 states, 4 states have (on average 34.0) internal successors, (136), 3 states have internal predecessors, (136), 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 16:16:25,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:16:25,159 INFO L93 Difference]: Finished difference Result 4237 states and 5542 transitions. [2022-01-31 16:16:25,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:16:25,159 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.0) internal successors, (136), 3 states have internal predecessors, (136), 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 315 [2022-01-31 16:16:25,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:16:25,179 INFO L225 Difference]: With dead ends: 4237 [2022-01-31 16:16:25,180 INFO L226 Difference]: Without dead ends: 4237 [2022-01-31 16:16:25,180 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 16:16:25,180 INFO L933 BasicCegarLoop]: 185 mSDtfsCounter, 279 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-31 16:16:25,180 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [279 Valid, 192 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-31 16:16:25,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4237 states. [2022-01-31 16:16:25,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4237 to 3949. [2022-01-31 16:16:25,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3949 states, 3944 states have (on average 1.327079107505071) internal successors, (5234), 3944 states have internal predecessors, (5234), 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 16:16:25,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3949 states to 3949 states and 5238 transitions. [2022-01-31 16:16:25,225 INFO L78 Accepts]: Start accepts. Automaton has 3949 states and 5238 transitions. Word has length 315 [2022-01-31 16:16:25,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:16:25,225 INFO L470 AbstractCegarLoop]: Abstraction has 3949 states and 5238 transitions. [2022-01-31 16:16:25,226 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.0) internal successors, (136), 3 states have internal predecessors, (136), 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 16:16:25,226 INFO L276 IsEmpty]: Start isEmpty. Operand 3949 states and 5238 transitions. [2022-01-31 16:16:25,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2022-01-31 16:16:25,233 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:16:25,233 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 13, 13, 13, 13, 13, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:16:25,233 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-31 16:16:25,233 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:16:25,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:16:25,234 INFO L85 PathProgramCache]: Analyzing trace with hash 1654457468, now seen corresponding path program 1 times [2022-01-31 16:16:25,234 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:16:25,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032931975] [2022-01-31 16:16:25,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:25,234 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:16:25,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:25,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:16:25,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:25,324 INFO L134 CoverageAnalysis]: Checked inductivity of 1201 backedges. 707 proven. 0 refuted. 0 times theorem prover too weak. 494 trivial. 0 not checked. [2022-01-31 16:16:25,324 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:16:25,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032931975] [2022-01-31 16:16:25,324 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1032931975] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:16:25,324 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:16:25,325 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:16:25,325 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443067898] [2022-01-31 16:16:25,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:16:25,325 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:16:25,325 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:16:25,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:16:25,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:16:25,326 INFO L87 Difference]: Start difference. First operand 3949 states and 5238 transitions. Second operand has 4 states, 4 states have (on average 35.5) internal successors, (142), 3 states have internal predecessors, (142), 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 16:16:25,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:16:25,480 INFO L93 Difference]: Finished difference Result 7381 states and 9843 transitions. [2022-01-31 16:16:25,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:16:25,481 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.5) internal successors, (142), 3 states have internal predecessors, (142), 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 316 [2022-01-31 16:16:25,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:16:25,493 INFO L225 Difference]: With dead ends: 7381 [2022-01-31 16:16:25,493 INFO L226 Difference]: Without dead ends: 7381 [2022-01-31 16:16:25,493 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 16:16:25,493 INFO L933 BasicCegarLoop]: 317 mSDtfsCounter, 261 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 324 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-31 16:16:25,494 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [261 Valid, 324 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-31 16:16:25,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7381 states. [2022-01-31 16:16:25,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7381 to 7379. [2022-01-31 16:16:25,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7379 states, 7374 states have (on average 1.3341470029834555) internal successors, (9838), 7374 states have internal predecessors, (9838), 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 16:16:25,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7379 states to 7379 states and 9842 transitions. [2022-01-31 16:16:25,578 INFO L78 Accepts]: Start accepts. Automaton has 7379 states and 9842 transitions. Word has length 316 [2022-01-31 16:16:25,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:16:25,578 INFO L470 AbstractCegarLoop]: Abstraction has 7379 states and 9842 transitions. [2022-01-31 16:16:25,579 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.5) internal successors, (142), 3 states have internal predecessors, (142), 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 16:16:25,579 INFO L276 IsEmpty]: Start isEmpty. Operand 7379 states and 9842 transitions. [2022-01-31 16:16:25,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2022-01-31 16:16:25,588 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:16:25,588 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 13, 13, 13, 13, 13, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:16:25,588 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-31 16:16:25,588 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:16:25,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:16:25,589 INFO L85 PathProgramCache]: Analyzing trace with hash -387267926, now seen corresponding path program 1 times [2022-01-31 16:16:25,589 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:16:25,589 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035014705] [2022-01-31 16:16:25,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:25,589 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:16:25,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:25,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:16:25,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:25,639 INFO L134 CoverageAnalysis]: Checked inductivity of 1201 backedges. 711 proven. 0 refuted. 0 times theorem prover too weak. 490 trivial. 0 not checked. [2022-01-31 16:16:25,639 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:16:25,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035014705] [2022-01-31 16:16:25,639 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035014705] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:16:25,639 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:16:25,639 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:16:25,639 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922492223] [2022-01-31 16:16:25,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:16:25,640 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:16:25,640 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:16:25,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:16:25,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:16:25,641 INFO L87 Difference]: Start difference. First operand 7379 states and 9842 transitions. Second operand has 4 states, 4 states have (on average 40.25) internal successors, (161), 3 states have internal predecessors, (161), 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 16:16:25,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:16:25,820 INFO L93 Difference]: Finished difference Result 7387 states and 9594 transitions. [2022-01-31 16:16:25,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:16:25,821 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 3 states have internal predecessors, (161), 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 317 [2022-01-31 16:16:25,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:16:25,830 INFO L225 Difference]: With dead ends: 7387 [2022-01-31 16:16:25,831 INFO L226 Difference]: Without dead ends: 7387 [2022-01-31 16:16:25,831 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:16:25,832 INFO L933 BasicCegarLoop]: 186 mSDtfsCounter, 182 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 16:16:25,833 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [182 Valid, 193 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-31 16:16:25,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7387 states. [2022-01-31 16:16:25,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7387 to 7355. [2022-01-31 16:16:25,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7355 states, 7350 states have (on average 1.3004081632653062) internal successors, (9558), 7350 states have internal predecessors, (9558), 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 16:16:25,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7355 states to 7355 states and 9562 transitions. [2022-01-31 16:16:25,949 INFO L78 Accepts]: Start accepts. Automaton has 7355 states and 9562 transitions. Word has length 317 [2022-01-31 16:16:25,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:16:25,949 INFO L470 AbstractCegarLoop]: Abstraction has 7355 states and 9562 transitions. [2022-01-31 16:16:25,949 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 3 states have internal predecessors, (161), 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 16:16:25,949 INFO L276 IsEmpty]: Start isEmpty. Operand 7355 states and 9562 transitions. [2022-01-31 16:16:25,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 341 [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 [14, 14, 14, 14, 14, 14, 14, 13, 13, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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: SelfDestructingSolverStorable20 [2022-01-31 16:16:25,959 INFO L402 AbstractCegarLoop]: === Iteration 22 === 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 1734711817, 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 [223568476] [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 16:16:25,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:26,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:16:26,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:26,023 INFO L134 CoverageAnalysis]: Checked inductivity of 1348 backedges. 766 proven. 12 refuted. 0 times theorem prover too weak. 570 trivial. 0 not checked. [2022-01-31 16:16:26,023 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:16:26,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223568476] [2022-01-31 16:16:26,023 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223568476] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-31 16:16:26,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [999417493] [2022-01-31 16:16:26,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:26,023 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 16:16:26,024 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 16:16:26,063 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 16:16:26,070 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 16:16:26,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:26,186 INFO L263 TraceCheckSpWp]: Trace formula consists of 686 conjuncts, 5 conjunts are in the unsatisfiable core [2022-01-31 16:16:26,194 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-31 16:16:26,650 INFO L134 CoverageAnalysis]: Checked inductivity of 1348 backedges. 104 proven. 0 refuted. 0 times theorem prover too weak. 1244 trivial. 0 not checked. [2022-01-31 16:16:26,650 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-31 16:16:26,650 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [999417493] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:16:26,650 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-01-31 16:16:26,650 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2022-01-31 16:16:26,651 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974025845] [2022-01-31 16:16:26,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:16:26,652 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:16:26,652 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:16:26,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:16:26,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-01-31 16:16:26,652 INFO L87 Difference]: Start difference. First operand 7355 states and 9562 transitions. Second operand has 5 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 2 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 16:16:26,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:16:26,801 INFO L93 Difference]: Finished difference Result 7533 states and 9774 transitions. [2022-01-31 16:16:26,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:16:26,802 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 2 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 340 [2022-01-31 16:16:26,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:16:26,812 INFO L225 Difference]: With dead ends: 7533 [2022-01-31 16:16:26,812 INFO L226 Difference]: Without dead ends: 7505 [2022-01-31 16:16:26,812 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 346 GetRequests, 339 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-01-31 16:16:26,813 INFO L933 BasicCegarLoop]: 150 mSDtfsCounter, 249 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-31 16:16:26,813 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [249 Valid, 384 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-31 16:16:26,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7505 states. [2022-01-31 16:16:26,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7505 to 7361. [2022-01-31 16:16:26,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7361 states, 7356 states have (on average 1.3004350190320826) internal successors, (9566), 7356 states have internal predecessors, (9566), 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 16:16:26,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7361 states to 7361 states and 9570 transitions. [2022-01-31 16:16:26,889 INFO L78 Accepts]: Start accepts. Automaton has 7361 states and 9570 transitions. Word has length 340 [2022-01-31 16:16:26,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:16:26,889 INFO L470 AbstractCegarLoop]: Abstraction has 7361 states and 9570 transitions. [2022-01-31 16:16:26,889 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 2 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 16:16:26,889 INFO L276 IsEmpty]: Start isEmpty. Operand 7361 states and 9570 transitions. [2022-01-31 16:16:26,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2022-01-31 16:16:26,919 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:16:26,919 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, 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, 1, 1] [2022-01-31 16:16:26,940 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 16:16:27,127 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,SelfDestructingSolverStorable21 [2022-01-31 16:16:27,127 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:16:27,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:16:27,128 INFO L85 PathProgramCache]: Analyzing trace with hash 1329745268, now seen corresponding path program 1 times [2022-01-31 16:16:27,128 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:16:27,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836145199] [2022-01-31 16:16:27,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:27,128 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:16:27,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:27,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:16:27,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:27,187 INFO L134 CoverageAnalysis]: Checked inductivity of 1416 backedges. 791 proven. 12 refuted. 0 times theorem prover too weak. 613 trivial. 0 not checked. [2022-01-31 16:16:27,187 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:16:27,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836145199] [2022-01-31 16:16:27,187 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836145199] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-31 16:16:27,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [545681682] [2022-01-31 16:16:27,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:27,188 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 16:16:27,188 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 16:16:27,204 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 16:16:27,204 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 16:16:27,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:27,331 INFO L263 TraceCheckSpWp]: Trace formula consists of 726 conjuncts, 3 conjunts are in the unsatisfiable core [2022-01-31 16:16:27,340 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-31 16:16:27,764 INFO L134 CoverageAnalysis]: Checked inductivity of 1416 backedges. 791 proven. 12 refuted. 0 times theorem prover too weak. 613 trivial. 0 not checked. [2022-01-31 16:16:27,764 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-31 16:16:28,158 INFO L134 CoverageAnalysis]: Checked inductivity of 1416 backedges. 791 proven. 12 refuted. 0 times theorem prover too weak. 613 trivial. 0 not checked. [2022-01-31 16:16:28,158 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [545681682] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-31 16:16:28,158 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-31 16:16:28,158 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 7 [2022-01-31 16:16:28,158 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123568522] [2022-01-31 16:16:28,158 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-31 16:16:28,159 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-31 16:16:28,159 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:16:28,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-31 16:16:28,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-01-31 16:16:28,160 INFO L87 Difference]: Start difference. First operand 7361 states and 9570 transitions. Second operand has 7 states, 7 states have (on average 33.57142857142857) internal successors, (235), 6 states have internal predecessors, (235), 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 16:16:28,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:16:28,826 INFO L93 Difference]: Finished difference Result 11169 states and 14287 transitions. [2022-01-31 16:16:28,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-31 16:16:28,826 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 33.57142857142857) internal successors, (235), 6 states have internal predecessors, (235), 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 353 [2022-01-31 16:16:28,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:16:28,870 INFO L225 Difference]: With dead ends: 11169 [2022-01-31 16:16:28,870 INFO L226 Difference]: Without dead ends: 11161 [2022-01-31 16:16:28,870 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 721 GetRequests, 711 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-01-31 16:16:28,871 INFO L933 BasicCegarLoop]: 387 mSDtfsCounter, 403 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 1241 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 403 SdHoareTripleChecker+Valid, 409 SdHoareTripleChecker+Invalid, 1310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 1241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-31 16:16:28,871 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [403 Valid, 409 Invalid, 1310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 1241 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-31 16:16:28,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11161 states. [2022-01-31 16:16:29,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11161 to 8465. [2022-01-31 16:16:29,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8465 states, 8460 states have (on average 1.307565011820331) internal successors, (11062), 8460 states have internal predecessors, (11062), 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 16:16:29,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8465 states to 8465 states and 11066 transitions. [2022-01-31 16:16:29,024 INFO L78 Accepts]: Start accepts. Automaton has 8465 states and 11066 transitions. Word has length 353 [2022-01-31 16:16:29,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:16:29,025 INFO L470 AbstractCegarLoop]: Abstraction has 8465 states and 11066 transitions. [2022-01-31 16:16:29,025 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 33.57142857142857) internal successors, (235), 6 states have internal predecessors, (235), 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 16:16:29,025 INFO L276 IsEmpty]: Start isEmpty. Operand 8465 states and 11066 transitions. [2022-01-31 16:16:29,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 367 [2022-01-31 16:16:29,035 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:16:29,035 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 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, 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] [2022-01-31 16:16:29,053 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-01-31 16:16:29,253 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2022-01-31 16:16:29,254 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:16:29,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:16:29,254 INFO L85 PathProgramCache]: Analyzing trace with hash 1292968849, now seen corresponding path program 2 times [2022-01-31 16:16:29,255 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:16:29,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394844512] [2022-01-31 16:16:29,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:29,255 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:16:29,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:29,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:16:29,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:29,318 INFO L134 CoverageAnalysis]: Checked inductivity of 1497 backedges. 843 proven. 5 refuted. 0 times theorem prover too weak. 649 trivial. 0 not checked. [2022-01-31 16:16:29,318 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:16:29,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394844512] [2022-01-31 16:16:29,318 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394844512] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-31 16:16:29,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1348076573] [2022-01-31 16:16:29,319 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-31 16:16:29,319 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 16:16:29,319 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 16:16:29,320 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 16:16:29,321 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 16:16:29,439 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-31 16:16:29,440 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-31 16:16:29,442 INFO L263 TraceCheckSpWp]: Trace formula consists of 766 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-31 16:16:29,446 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-31 16:16:29,918 INFO L134 CoverageAnalysis]: Checked inductivity of 1497 backedges. 642 proven. 0 refuted. 0 times theorem prover too weak. 855 trivial. 0 not checked. [2022-01-31 16:16:29,919 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-31 16:16:29,919 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1348076573] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:16:29,919 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-01-31 16:16:29,919 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-01-31 16:16:29,919 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503278926] [2022-01-31 16:16:29,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:16:29,919 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-31 16:16:29,920 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:16:29,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-31 16:16:29,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:16:29,920 INFO L87 Difference]: Start difference. First operand 8465 states and 11066 transitions. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 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 16:16:30,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:16:30,076 INFO L93 Difference]: Finished difference Result 8745 states and 10826 transitions. [2022-01-31 16:16:30,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-31 16:16:30,083 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 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 366 [2022-01-31 16:16:30,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:16:30,096 INFO L225 Difference]: With dead ends: 8745 [2022-01-31 16:16:30,096 INFO L226 Difference]: Without dead ends: 8745 [2022-01-31 16:16:30,097 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 371 GetRequests, 367 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:16:30,097 INFO L933 BasicCegarLoop]: 145 mSDtfsCounter, 57 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-31 16:16:30,097 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [57 Valid, 225 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-31 16:16:30,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8745 states. [2022-01-31 16:16:30,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8745 to 7889. [2022-01-31 16:16:30,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7889 states, 7884 states have (on average 1.2569761542364282) internal successors, (9910), 7884 states have internal predecessors, (9910), 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 16:16:30,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7889 states to 7889 states and 9914 transitions. [2022-01-31 16:16:30,188 INFO L78 Accepts]: Start accepts. Automaton has 7889 states and 9914 transitions. Word has length 366 [2022-01-31 16:16:30,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:16:30,188 INFO L470 AbstractCegarLoop]: Abstraction has 7889 states and 9914 transitions. [2022-01-31 16:16:30,188 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 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 16:16:30,188 INFO L276 IsEmpty]: Start isEmpty. Operand 7889 states and 9914 transitions. [2022-01-31 16:16:30,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 381 [2022-01-31 16:16:30,196 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:16:30,196 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:16:30,235 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-01-31 16:16:30,416 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 16:16:30,416 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:16:30,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:16:30,417 INFO L85 PathProgramCache]: Analyzing trace with hash -2096642603, now seen corresponding path program 1 times [2022-01-31 16:16:30,417 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:16:30,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288701957] [2022-01-31 16:16:30,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:30,417 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:16:30,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:30,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:16:30,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:30,504 INFO L134 CoverageAnalysis]: Checked inductivity of 1649 backedges. 955 proven. 5 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2022-01-31 16:16:30,504 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:16:30,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288701957] [2022-01-31 16:16:30,504 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288701957] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-31 16:16:30,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [456182065] [2022-01-31 16:16:30,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:30,505 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 16:16:30,505 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 16:16:30,506 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 16:16:30,507 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 16:16:30,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:30,627 INFO L263 TraceCheckSpWp]: Trace formula consists of 796 conjuncts, 3 conjunts are in the unsatisfiable core [2022-01-31 16:16:30,631 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-31 16:16:31,071 INFO L134 CoverageAnalysis]: Checked inductivity of 1649 backedges. 955 proven. 5 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2022-01-31 16:16:31,071 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-31 16:16:31,565 INFO L134 CoverageAnalysis]: Checked inductivity of 1649 backedges. 955 proven. 5 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2022-01-31 16:16:31,566 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [456182065] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-31 16:16:31,566 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-31 16:16:31,566 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 7 [2022-01-31 16:16:31,566 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679630525] [2022-01-31 16:16:31,566 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-31 16:16:31,567 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-31 16:16:31,567 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:16:31,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-31 16:16:31,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-01-31 16:16:31,567 INFO L87 Difference]: Start difference. First operand 7889 states and 9914 transitions. Second operand has 7 states, 7 states have (on average 33.57142857142857) internal successors, (235), 6 states have internal predecessors, (235), 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 16:16:31,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:16:31,953 INFO L93 Difference]: Finished difference Result 10039 states and 12420 transitions. [2022-01-31 16:16:31,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-31 16:16:31,953 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 33.57142857142857) internal successors, (235), 6 states have internal predecessors, (235), 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 380 [2022-01-31 16:16:31,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:16:31,971 INFO L225 Difference]: With dead ends: 10039 [2022-01-31 16:16:31,971 INFO L226 Difference]: Without dead ends: 10031 [2022-01-31 16:16:31,972 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 770 GetRequests, 762 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-01-31 16:16:31,972 INFO L933 BasicCegarLoop]: 225 mSDtfsCounter, 552 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 541 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 552 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 653 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 541 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-31 16:16:31,972 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [552 Valid, 242 Invalid, 653 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 541 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-31 16:16:31,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10031 states. [2022-01-31 16:16:32,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10031 to 8280. [2022-01-31 16:16:32,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8280 states, 8275 states have (on average 1.253655589123867) internal successors, (10374), 8275 states have internal predecessors, (10374), 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 16:16:32,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8280 states to 8280 states and 10378 transitions. [2022-01-31 16:16:32,068 INFO L78 Accepts]: Start accepts. Automaton has 8280 states and 10378 transitions. Word has length 380 [2022-01-31 16:16:32,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:16:32,068 INFO L470 AbstractCegarLoop]: Abstraction has 8280 states and 10378 transitions. [2022-01-31 16:16:32,068 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 33.57142857142857) internal successors, (235), 6 states have internal predecessors, (235), 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 16:16:32,068 INFO L276 IsEmpty]: Start isEmpty. Operand 8280 states and 10378 transitions. [2022-01-31 16:16:32,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 420 [2022-01-31 16:16:32,078 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:16:32,078 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, 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] [2022-01-31 16:16:32,098 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-01-31 16:16:32,295 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 16:16:32,295 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:16:32,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:16:32,296 INFO L85 PathProgramCache]: Analyzing trace with hash -49962149, now seen corresponding path program 1 times [2022-01-31 16:16:32,296 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:16:32,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863915980] [2022-01-31 16:16:32,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:32,296 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:16:32,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:32,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:16:32,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:32,374 INFO L134 CoverageAnalysis]: Checked inductivity of 1970 backedges. 885 proven. 0 refuted. 0 times theorem prover too weak. 1085 trivial. 0 not checked. [2022-01-31 16:16:32,375 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:16:32,375 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863915980] [2022-01-31 16:16:32,375 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [863915980] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:16:32,375 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:16:32,375 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:16:32,375 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788459620] [2022-01-31 16:16:32,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:16:32,376 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:16:32,376 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:16:32,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:16:32,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:16:32,377 INFO L87 Difference]: Start difference. First operand 8280 states and 10378 transitions. Second operand has 4 states, 4 states have (on average 40.75) internal successors, (163), 3 states have internal predecessors, (163), 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 16:16:32,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:16:32,559 INFO L93 Difference]: Finished difference Result 7596 states and 9074 transitions. [2022-01-31 16:16:32,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:16:32,560 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.75) internal successors, (163), 3 states have internal predecessors, (163), 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 419 [2022-01-31 16:16:32,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:16:32,565 INFO L225 Difference]: With dead ends: 7596 [2022-01-31 16:16:32,565 INFO L226 Difference]: Without dead ends: 3812 [2022-01-31 16:16:32,565 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 16:16:32,566 INFO L933 BasicCegarLoop]: 188 mSDtfsCounter, 208 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 16:16:32,568 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [208 Valid, 195 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-31 16:16:32,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3812 states. [2022-01-31 16:16:32,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3812 to 3621. [2022-01-31 16:16:32,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3621 states, 3616 states have (on average 1.2419800884955752) internal successors, (4491), 3616 states have internal predecessors, (4491), 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 16:16:32,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3621 states to 3621 states and 4495 transitions. [2022-01-31 16:16:32,598 INFO L78 Accepts]: Start accepts. Automaton has 3621 states and 4495 transitions. Word has length 419 [2022-01-31 16:16:32,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:16:32,598 INFO L470 AbstractCegarLoop]: Abstraction has 3621 states and 4495 transitions. [2022-01-31 16:16:32,598 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.75) internal successors, (163), 3 states have internal predecessors, (163), 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 16:16:32,598 INFO L276 IsEmpty]: Start isEmpty. Operand 3621 states and 4495 transitions. [2022-01-31 16:16:32,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 504 [2022-01-31 16:16:32,602 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:16:32,603 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:16:32,603 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-31 16:16:32,603 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:16:32,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:16:32,603 INFO L85 PathProgramCache]: Analyzing trace with hash -54549105, now seen corresponding path program 1 times [2022-01-31 16:16:32,603 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:16:32,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927810513] [2022-01-31 16:16:32,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:32,604 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:16:32,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:32,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:16:32,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:32,672 INFO L134 CoverageAnalysis]: Checked inductivity of 2711 backedges. 1571 proven. 14 refuted. 0 times theorem prover too weak. 1126 trivial. 0 not checked. [2022-01-31 16:16:32,672 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:16:32,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927810513] [2022-01-31 16:16:32,673 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927810513] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-31 16:16:32,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [891824862] [2022-01-31 16:16:32,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:32,673 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 16:16:32,673 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 16:16:32,688 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-31 16:16:32,689 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-01-31 16:16:32,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:32,821 INFO L263 TraceCheckSpWp]: Trace formula consists of 926 conjuncts, 3 conjunts are in the unsatisfiable core [2022-01-31 16:16:32,826 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-31 16:16:33,716 INFO L134 CoverageAnalysis]: Checked inductivity of 2711 backedges. 1018 proven. 0 refuted. 0 times theorem prover too weak. 1693 trivial. 0 not checked. [2022-01-31 16:16:33,716 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-31 16:16:33,716 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [891824862] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:16:33,716 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-01-31 16:16:33,716 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-01-31 16:16:33,717 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761789715] [2022-01-31 16:16:33,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:16:33,717 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-31 16:16:33,717 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:16:33,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-31 16:16:33,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:16:33,718 INFO L87 Difference]: Start difference. First operand 3621 states and 4495 transitions. Second operand has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 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 16:16:33,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:16:33,732 INFO L93 Difference]: Finished difference Result 3960 states and 4882 transitions. [2022-01-31 16:16:33,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-31 16:16:33,733 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 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 503 [2022-01-31 16:16:33,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:16:33,740 INFO L225 Difference]: With dead ends: 3960 [2022-01-31 16:16:33,740 INFO L226 Difference]: Without dead ends: 3960 [2022-01-31 16:16:33,740 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 508 GetRequests, 504 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 16:16:33,741 INFO L933 BasicCegarLoop]: 303 mSDtfsCounter, 61 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 460 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 16:16:33,741 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [61 Valid, 460 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-31 16:16:33,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3960 states. [2022-01-31 16:16:33,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3960 to 3546. [2022-01-31 16:16:33,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3546 states, 3541 states have (on average 1.2420220276757978) internal successors, (4398), 3541 states have internal predecessors, (4398), 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 16:16:33,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3546 states to 3546 states and 4402 transitions. [2022-01-31 16:16:33,774 INFO L78 Accepts]: Start accepts. Automaton has 3546 states and 4402 transitions. Word has length 503 [2022-01-31 16:16:33,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:16:33,774 INFO L470 AbstractCegarLoop]: Abstraction has 3546 states and 4402 transitions. [2022-01-31 16:16:33,774 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 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 16:16:33,774 INFO L276 IsEmpty]: Start isEmpty. Operand 3546 states and 4402 transitions. [2022-01-31 16:16:33,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 616 [2022-01-31 16:16:33,784 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:16:33,784 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, 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, 1, 1] [2022-01-31 16:16:33,817 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-01-31 16:16:34,002 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2022-01-31 16:16:34,003 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:16:34,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:16:34,004 INFO L85 PathProgramCache]: Analyzing trace with hash 71565020, now seen corresponding path program 1 times [2022-01-31 16:16:34,004 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:16:34,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357042435] [2022-01-31 16:16:34,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:34,005 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:16:34,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:34,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:16:34,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:34,123 INFO L134 CoverageAnalysis]: Checked inductivity of 3928 backedges. 2054 proven. 14 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2022-01-31 16:16:34,123 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:16:34,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357042435] [2022-01-31 16:16:34,124 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1357042435] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-31 16:16:34,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1454097548] [2022-01-31 16:16:34,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:34,125 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 16:16:34,125 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 16:16:34,140 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-31 16:16:34,141 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-01-31 16:16:34,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:34,284 INFO L263 TraceCheckSpWp]: Trace formula consists of 1067 conjuncts, 3 conjunts are in the unsatisfiable core [2022-01-31 16:16:34,289 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-31 16:16:35,055 INFO L134 CoverageAnalysis]: Checked inductivity of 3928 backedges. 2054 proven. 14 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2022-01-31 16:16:35,055 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-31 16:16:35,782 INFO L134 CoverageAnalysis]: Checked inductivity of 3928 backedges. 2054 proven. 14 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2022-01-31 16:16:35,783 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1454097548] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-31 16:16:35,783 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-31 16:16:35,783 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 9 [2022-01-31 16:16:35,783 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675539927] [2022-01-31 16:16:35,783 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-31 16:16:35,784 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-31 16:16:35,784 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:16:35,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-31 16:16:35,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-01-31 16:16:35,785 INFO L87 Difference]: Start difference. First operand 3546 states and 4402 transitions. Second operand has 9 states, 9 states have (on average 36.888888888888886) internal successors, (332), 8 states have internal predecessors, (332), 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 16:16:36,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:16:36,257 INFO L93 Difference]: Finished difference Result 967 states and 1137 transitions. [2022-01-31 16:16:36,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-31 16:16:36,258 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 36.888888888888886) internal successors, (332), 8 states have internal predecessors, (332), 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 615 [2022-01-31 16:16:36,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:16:36,258 INFO L225 Difference]: With dead ends: 967 [2022-01-31 16:16:36,258 INFO L226 Difference]: Without dead ends: 0 [2022-01-31 16:16:36,259 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1241 GetRequests, 1231 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2022-01-31 16:16:36,259 INFO L933 BasicCegarLoop]: 159 mSDtfsCounter, 314 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 991 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 314 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 1037 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 991 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-31 16:16:36,259 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [314 Valid, 181 Invalid, 1037 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 991 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-31 16:16:36,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-01-31 16:16:36,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-01-31 16:16:36,260 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 16:16:36,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-01-31 16:16:36,260 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 615 [2022-01-31 16:16:36,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:16:36,260 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-01-31 16:16:36,260 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 36.888888888888886) internal successors, (332), 8 states have internal predecessors, (332), 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 16:16:36,260 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-01-31 16:16:36,260 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-01-31 16:16:36,262 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-31 16:16:36,290 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-01-31 16:16:36,471 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2022-01-31 16:16:36,475 INFO L732 BasicCegarLoop]: Path program histogram: [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 16:16:36,476 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-01-31 16:16:36,478 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.01 04:16:36 BasicIcfg [2022-01-31 16:16:36,478 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-31 16:16:36,478 INFO L158 Benchmark]: Toolchain (without parser) took 18039.70ms. Allocated memory was 216.0MB in the beginning and 434.1MB in the end (delta: 218.1MB). Free memory was 167.4MB in the beginning and 180.1MB in the end (delta: -12.7MB). Peak memory consumption was 204.5MB. Max. memory is 8.0GB. [2022-01-31 16:16:36,478 INFO L158 Benchmark]: CDTParser took 0.73ms. Allocated memory is still 216.0MB. Free memory is still 184.4MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-31 16:16:36,478 INFO L158 Benchmark]: CACSL2BoogieTranslator took 350.67ms. Allocated memory is still 216.0MB. Free memory was 167.1MB in the beginning and 189.3MB in the end (delta: -22.2MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-01-31 16:16:36,478 INFO L158 Benchmark]: Boogie Preprocessor took 76.02ms. Allocated memory is still 216.0MB. Free memory was 189.3MB in the beginning and 187.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-31 16:16:36,478 INFO L158 Benchmark]: RCFGBuilder took 565.01ms. Allocated memory is still 216.0MB. Free memory was 186.7MB in the beginning and 160.5MB in the end (delta: 26.2MB). Peak memory consumption was 26.2MB. Max. memory is 8.0GB. [2022-01-31 16:16:36,479 INFO L158 Benchmark]: IcfgTransformer took 30.28ms. Allocated memory is still 216.0MB. Free memory was 160.5MB in the beginning and 157.8MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-01-31 16:16:36,479 INFO L158 Benchmark]: TraceAbstraction took 17011.58ms. Allocated memory was 216.0MB in the beginning and 434.1MB in the end (delta: 218.1MB). Free memory was 157.3MB in the beginning and 180.1MB in the end (delta: -22.8MB). Peak memory consumption was 196.4MB. Max. memory is 8.0GB. [2022-01-31 16:16:36,480 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.73ms. Allocated memory is still 216.0MB. Free memory is still 184.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 350.67ms. Allocated memory is still 216.0MB. Free memory was 167.1MB in the beginning and 189.3MB in the end (delta: -22.2MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * Boogie Preprocessor took 76.02ms. Allocated memory is still 216.0MB. Free memory was 189.3MB in the beginning and 187.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 565.01ms. Allocated memory is still 216.0MB. Free memory was 186.7MB in the beginning and 160.5MB in the end (delta: 26.2MB). Peak memory consumption was 26.2MB. Max. memory is 8.0GB. * IcfgTransformer took 30.28ms. Allocated memory is still 216.0MB. Free memory was 160.5MB in the beginning and 157.8MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * TraceAbstraction took 17011.58ms. Allocated memory was 216.0MB in the beginning and 434.1MB in the end (delta: 218.1MB). Free memory was 157.3MB in the beginning and 180.1MB in the end (delta: -22.8MB). Peak memory consumption was 196.4MB. 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: 584]: 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, 137 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 17.0s, OverallIterations: 28, TraceHistogramMax: 21, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.2s, AutomataDifference: 6.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 7022 SdHoareTripleChecker+Valid, 5.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7020 mSDsluCounter, 6585 SdHoareTripleChecker+Invalid, 4.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 688 mSDsCounter, 673 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7053 IncrementalHoareTripleChecker+Invalid, 7726 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 673 mSolverCounterUnsat, 5897 mSDtfsCounter, 7053 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4110 GetRequests, 4001 SyntacticMatches, 0 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8465occurred in iteration=23, InterpolantAutomatonStates: 119, 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, 28 MinimizatonAttempts, 6652 StatesRemovedByMinimization, 23 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 6.4s InterpolantComputationTime, 9279 NumberOfCodeBlocks, 9279 NumberOfCodeBlocksAsserted, 35 NumberOfCheckSat, 10590 ConstructedInterpolants, 0 QuantifiedInterpolants, 14905 SizeOfPredicates, 5 NumberOfNonLiveVariables, 4967 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 37 InterpolantComputations, 25 PerfectInterpolantSequences, 44927/45051 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 16:16:36,514 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...