/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_2.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-d966a43 [2022-01-31 16:16:16,263 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-31 16:16:16,265 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-31 16:16:16,303 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-31 16:16:16,304 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-31 16:16:16,304 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-31 16:16:16,305 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-31 16:16:16,307 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-31 16:16:16,309 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-31 16:16:16,333 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-31 16:16:16,334 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-31 16:16:16,340 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-31 16:16:16,340 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-31 16:16:16,341 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-31 16:16:16,341 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-31 16:16:16,342 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-31 16:16:16,342 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-31 16:16:16,343 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-31 16:16:16,345 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-31 16:16:16,346 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-31 16:16:16,347 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-31 16:16:16,348 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-31 16:16:16,349 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-31 16:16:16,350 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-31 16:16:16,352 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-31 16:16:16,353 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-31 16:16:16,353 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-31 16:16:16,353 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-31 16:16:16,354 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-31 16:16:16,355 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-31 16:16:16,355 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-31 16:16:16,355 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-31 16:16:16,356 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-31 16:16:16,357 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-31 16:16:16,358 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-31 16:16:16,358 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-31 16:16:16,358 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-31 16:16:16,359 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-31 16:16:16,359 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-31 16:16:16,359 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-31 16:16:16,360 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-31 16:16:16,361 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-01-31 16:16:16,370 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-31 16:16:16,370 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-31 16:16:16,371 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-31 16:16:16,371 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-31 16:16:16,371 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-31 16:16:16,371 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-31 16:16:16,371 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-31 16:16:16,372 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-31 16:16:16,372 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-31 16:16:16,372 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-31 16:16:16,372 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-31 16:16:16,372 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-31 16:16:16,372 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-31 16:16:16,372 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-31 16:16:16,372 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-31 16:16:16,373 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-31 16:16:16,373 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-31 16:16:16,373 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-31 16:16:16,373 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 16:16:16,373 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-31 16:16:16,373 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-31 16:16:16,374 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-31 16:16:16,374 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-31 16:16:16,603 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-31 16:16:16,630 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-31 16:16:16,632 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-31 16:16:16,633 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-31 16:16:16,634 INFO L275 PluginConnector]: CDTParser initialized [2022-01-31 16:16:16,635 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl-simplified/s3_clnt_2.cil-2.c [2022-01-31 16:16:16,691 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5bceb8c43/48b079fd656347b9a9b2d09f958132f0/FLAG24407864a [2022-01-31 16:16:17,088 INFO L306 CDTParser]: Found 1 translation units. [2022-01-31 16:16:17,089 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl-simplified/s3_clnt_2.cil-2.c [2022-01-31 16:16:17,102 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5bceb8c43/48b079fd656347b9a9b2d09f958132f0/FLAG24407864a [2022-01-31 16:16:17,118 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5bceb8c43/48b079fd656347b9a9b2d09f958132f0 [2022-01-31 16:16:17,121 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-31 16:16:17,125 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-31 16:16:17,129 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-31 16:16:17,129 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-31 16:16:17,132 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-31 16:16:17,133 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 04:16:17" (1/1) ... [2022-01-31 16:16:17,133 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cb5d5bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:16:17, skipping insertion in model container [2022-01-31 16:16:17,134 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 04:16:17" (1/1) ... [2022-01-31 16:16:17,139 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-31 16:16:17,171 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-31 16:16:17,356 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_2.cil-2.c[35827,35840] [2022-01-31 16:16:17,362 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 16:16:17,368 INFO L203 MainTranslator]: Completed pre-run [2022-01-31 16:16:17,410 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_2.cil-2.c[35827,35840] [2022-01-31 16:16:17,412 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 16:16:17,423 INFO L208 MainTranslator]: Completed translation [2022-01-31 16:16:17,424 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:16:17 WrapperNode [2022-01-31 16:16:17,424 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-31 16:16:17,425 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-31 16:16:17,425 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-31 16:16:17,425 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-31 16:16:17,434 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:16:17" (1/1) ... [2022-01-31 16:16:17,435 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:16:17" (1/1) ... [2022-01-31 16:16:17,446 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:16:17" (1/1) ... [2022-01-31 16:16:17,446 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:16:17" (1/1) ... [2022-01-31 16:16:17,455 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:16:17" (1/1) ... [2022-01-31 16:16:17,463 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:16:17" (1/1) ... [2022-01-31 16:16:17,465 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:16:17" (1/1) ... [2022-01-31 16:16:17,469 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-31 16:16:17,479 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-31 16:16:17,479 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-31 16:16:17,479 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-31 16:16:17,480 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:16:17" (1/1) ... [2022-01-31 16:16:17,501 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 16:16:17,512 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 16:16:17,529 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 16:16:17,551 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 16:16:17,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-01-31 16:16:17,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-31 16:16:17,567 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-01-31 16:16:17,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_connect [2022-01-31 16:16:17,567 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-01-31 16:16:17,568 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-01-31 16:16:17,568 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-01-31 16:16:17,568 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-01-31 16:16:17,569 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-31 16:16:17,569 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-01-31 16:16:17,569 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-01-31 16:16:17,569 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-01-31 16:16:17,570 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_connect [2022-01-31 16:16:17,570 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-01-31 16:16:17,570 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-01-31 16:16:17,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-31 16:16:17,573 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-31 16:16:17,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-31 16:16:17,573 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-31 16:16:17,573 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-31 16:16:17,691 INFO L234 CfgBuilder]: Building ICFG [2022-01-31 16:16:17,693 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-31 16:16:17,780 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-31 16:16:18,043 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2022-01-31 16:16:18,043 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2022-01-31 16:16:18,046 INFO L275 CfgBuilder]: Performing block encoding [2022-01-31 16:16:18,052 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-31 16:16:18,052 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-31 16:16:18,054 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 04:16:18 BoogieIcfgContainer [2022-01-31 16:16:18,054 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-31 16:16:18,055 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-31 16:16:18,055 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-31 16:16:18,056 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-31 16:16:18,059 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 04:16:18" (1/1) ... [2022-01-31 16:16:18,087 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 31.01 04:16:18 BasicIcfg [2022-01-31 16:16:18,087 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-31 16:16:18,089 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-31 16:16:18,089 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-31 16:16:18,091 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-31 16:16:18,091 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 04:16:17" (1/4) ... [2022-01-31 16:16:18,092 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@591d091a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 04:16:18, skipping insertion in model container [2022-01-31 16:16:18,092 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:16:17" (2/4) ... [2022-01-31 16:16:18,092 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@591d091a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 04:16:18, skipping insertion in model container [2022-01-31 16:16:18,093 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 04:16:18" (3/4) ... [2022-01-31 16:16:18,093 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@591d091a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.01 04:16:18, skipping insertion in model container [2022-01-31 16:16:18,093 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 31.01 04:16:18" (4/4) ... [2022-01-31 16:16:18,094 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_clnt_2.cil-2.cJordan [2022-01-31 16:16:18,098 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-01-31 16:16:18,099 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-31 16:16:18,130 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-31 16:16:18,136 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 16:16:18,136 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-31 16:16:18,150 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 16:16:18,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-01-31 16:16:18,159 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:16:18,159 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 16:16:18,160 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:16:18,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:16:18,165 INFO L85 PathProgramCache]: Analyzing trace with hash 291212414, now seen corresponding path program 1 times [2022-01-31 16:16:18,172 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:16:18,173 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267606216] [2022-01-31 16:16:18,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:18,174 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:16:18,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:18,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:16:18,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:18,397 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 16:16:18,397 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:16:18,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267606216] [2022-01-31 16:16:18,398 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267606216] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:16:18,398 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:16:18,398 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:16:18,400 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130095899] [2022-01-31 16:16:18,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:16:18,404 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:16:18,404 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:16:18,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:16:18,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:16:18,438 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 16:16:18,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:16:18,785 INFO L93 Difference]: Finished difference Result 251 states and 411 transitions. [2022-01-31 16:16:18,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:16:18,788 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 16:16:18,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:16:18,806 INFO L225 Difference]: With dead ends: 251 [2022-01-31 16:16:18,806 INFO L226 Difference]: Without dead ends: 218 [2022-01-31 16:16:18,808 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 16:16:18,811 INFO L933 BasicCegarLoop]: 216 mSDtfsCounter, 576 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 578 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-31 16:16:18,812 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [578 Valid, 225 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-31 16:16:18,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2022-01-31 16:16:18,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2022-01-31 16:16:18,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 213 states have (on average 1.4929577464788732) internal successors, (318), 213 states have internal predecessors, (318), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:18,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 322 transitions. [2022-01-31 16:16:18,862 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 322 transitions. Word has length 30 [2022-01-31 16:16:18,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:16:18,862 INFO L470 AbstractCegarLoop]: Abstraction has 218 states and 322 transitions. [2022-01-31 16:16:18,862 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 16:16:18,863 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 322 transitions. [2022-01-31 16:16:18,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-01-31 16:16:18,872 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:16:18,872 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 16:16:18,872 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-31 16:16:18,873 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:16:18,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:16:18,876 INFO L85 PathProgramCache]: Analyzing trace with hash 654554040, now seen corresponding path program 1 times [2022-01-31 16:16:18,877 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:16:18,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636563300] [2022-01-31 16:16:18,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:18,878 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:16:18,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:19,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:16:19,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:19,021 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 16:16:19,021 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:16:19,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636563300] [2022-01-31 16:16:19,022 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636563300] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:16:19,022 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:16:19,022 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:16:19,022 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343758735] [2022-01-31 16:16:19,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:16:19,024 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:16:19,024 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:16:19,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:16:19,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:16:19,025 INFO L87 Difference]: Start difference. First operand 218 states and 322 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 16:16:19,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:16:19,241 INFO L93 Difference]: Finished difference Result 243 states and 355 transitions. [2022-01-31 16:16:19,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:16:19,241 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 16:16:19,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:16:19,243 INFO L225 Difference]: With dead ends: 243 [2022-01-31 16:16:19,244 INFO L226 Difference]: Without dead ends: 243 [2022-01-31 16:16:19,244 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 16:16:19,245 INFO L933 BasicCegarLoop]: 186 mSDtfsCounter, 189 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 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 16:16:19,246 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [189 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 16:16:19,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2022-01-31 16:16:19,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 235. [2022-01-31 16:16:19,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235 states, 230 states have (on average 1.4782608695652173) internal successors, (340), 230 states have internal predecessors, (340), 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 16:16:19,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 344 transitions. [2022-01-31 16:16:19,260 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 344 transitions. Word has length 44 [2022-01-31 16:16:19,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:16:19,260 INFO L470 AbstractCegarLoop]: Abstraction has 235 states and 344 transitions. [2022-01-31 16:16:19,261 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 16:16:19,261 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 344 transitions. [2022-01-31 16:16:19,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-01-31 16:16:19,263 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:16:19,263 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 16:16:19,263 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-31 16:16:19,263 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:16:19,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:16:19,264 INFO L85 PathProgramCache]: Analyzing trace with hash -13184325, now seen corresponding path program 1 times [2022-01-31 16:16:19,264 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:16:19,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894167709] [2022-01-31 16:16:19,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:19,265 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:16:19,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:19,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:16:19,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:19,342 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 16:16:19,342 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:16:19,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894167709] [2022-01-31 16:16:19,343 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894167709] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:16:19,343 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:16:19,343 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:16:19,343 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269372183] [2022-01-31 16:16:19,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:16:19,344 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:16:19,344 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:16:19,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:16:19,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:16:19,345 INFO L87 Difference]: Start difference. First operand 235 states and 344 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 16:16:19,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:16:19,550 INFO L93 Difference]: Finished difference Result 285 states and 407 transitions. [2022-01-31 16:16:19,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:16:19,550 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 16:16:19,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:16:19,552 INFO L225 Difference]: With dead ends: 285 [2022-01-31 16:16:19,552 INFO L226 Difference]: Without dead ends: 285 [2022-01-31 16:16:19,552 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 16:16:19,553 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 16:16:19,554 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 16:16:19,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2022-01-31 16:16:19,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 275. [2022-01-31 16:16:19,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 270 states have (on average 1.4444444444444444) internal successors, (390), 270 states have internal predecessors, (390), 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 16:16:19,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 394 transitions. [2022-01-31 16:16:19,566 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 394 transitions. Word has length 61 [2022-01-31 16:16:19,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:16:19,567 INFO L470 AbstractCegarLoop]: Abstraction has 275 states and 394 transitions. [2022-01-31 16:16:19,567 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 16:16:19,567 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 394 transitions. [2022-01-31 16:16:19,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-01-31 16:16:19,569 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:16:19,569 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 16:16:19,569 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-31 16:16:19,569 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:16:19,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:16:19,570 INFO L85 PathProgramCache]: Analyzing trace with hash -1257948806, now seen corresponding path program 1 times [2022-01-31 16:16:19,570 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:16:19,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255558070] [2022-01-31 16:16:19,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:19,571 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:16:19,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:19,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:16:19,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:19,621 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 16:16:19,621 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:16:19,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255558070] [2022-01-31 16:16:19,622 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [255558070] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:16:19,622 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:16:19,622 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:16:19,622 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779606343] [2022-01-31 16:16:19,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:16:19,623 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:16:19,623 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:16:19,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:16:19,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:16:19,624 INFO L87 Difference]: Start difference. First operand 275 states and 394 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 16:16:19,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:16:19,858 INFO L93 Difference]: Finished difference Result 375 states and 516 transitions. [2022-01-31 16:16:19,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:16:19,859 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 16:16:19,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:16:19,861 INFO L225 Difference]: With dead ends: 375 [2022-01-31 16:16:19,861 INFO L226 Difference]: Without dead ends: 373 [2022-01-31 16:16:19,861 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 16:16:19,862 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 16:16:19,863 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 16:16:19,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2022-01-31 16:16:19,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 355. [2022-01-31 16:16:19,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 350 states have (on average 1.3942857142857144) internal successors, (488), 350 states have internal predecessors, (488), 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 16:16:19,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 492 transitions. [2022-01-31 16:16:19,873 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 492 transitions. Word has length 61 [2022-01-31 16:16:19,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:16:19,873 INFO L470 AbstractCegarLoop]: Abstraction has 355 states and 492 transitions. [2022-01-31 16:16:19,873 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 16:16:19,873 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 492 transitions. [2022-01-31 16:16:19,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-01-31 16:16:19,875 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:16:19,875 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 16:16:19,875 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-31 16:16:19,876 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:16:19,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:16:19,876 INFO L85 PathProgramCache]: Analyzing trace with hash 1806652013, now seen corresponding path program 1 times [2022-01-31 16:16:19,876 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:16:19,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182394700] [2022-01-31 16:16:19,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:19,877 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:16:19,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:19,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:16:19,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:19,926 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 16:16:19,926 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:16:19,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182394700] [2022-01-31 16:16:19,927 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182394700] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:16:19,927 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:16:19,927 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:16:19,927 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105437363] [2022-01-31 16:16:19,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:16:19,928 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:16:19,928 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:16:19,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:16:19,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:16:19,929 INFO L87 Difference]: Start difference. First operand 355 states and 492 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 16:16:20,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:16:20,108 INFO L93 Difference]: Finished difference Result 461 states and 660 transitions. [2022-01-31 16:16:20,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:16:20,108 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 16:16:20,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:16:20,111 INFO L225 Difference]: With dead ends: 461 [2022-01-31 16:16:20,112 INFO L226 Difference]: Without dead ends: 459 [2022-01-31 16:16:20,114 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 16:16:20,121 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 16:16:20,124 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 16:16:20,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459 states. [2022-01-31 16:16:20,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 459 to 433. [2022-01-31 16:16:20,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 433 states, 428 states have (on average 1.4532710280373833) internal successors, (622), 428 states have internal predecessors, (622), 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 16:16:20,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 626 transitions. [2022-01-31 16:16:20,140 INFO L78 Accepts]: Start accepts. Automaton has 433 states and 626 transitions. Word has length 74 [2022-01-31 16:16:20,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:16:20,140 INFO L470 AbstractCegarLoop]: Abstraction has 433 states and 626 transitions. [2022-01-31 16:16:20,140 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 16:16:20,140 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states and 626 transitions. [2022-01-31 16:16:20,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-01-31 16:16:20,142 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:16:20,142 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 16:16:20,143 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-31 16:16:20,143 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:16:20,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:16:20,143 INFO L85 PathProgramCache]: Analyzing trace with hash 1033399768, now seen corresponding path program 1 times [2022-01-31 16:16:20,144 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:16:20,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865732965] [2022-01-31 16:16:20,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:20,144 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:16:20,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:20,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:16:20,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:20,228 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 16:16:20,228 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:16:20,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865732965] [2022-01-31 16:16:20,228 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865732965] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:16:20,228 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:16:20,228 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:16:20,229 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186009954] [2022-01-31 16:16:20,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:16:20,229 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:16:20,229 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:16:20,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:16:20,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:16:20,230 INFO L87 Difference]: Start difference. First operand 433 states and 626 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 16:16:20,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:16:20,414 INFO L93 Difference]: Finished difference Result 481 states and 685 transitions. [2022-01-31 16:16:20,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:16:20,414 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 16:16:20,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:16:20,419 INFO L225 Difference]: With dead ends: 481 [2022-01-31 16:16:20,419 INFO L226 Difference]: Without dead ends: 481 [2022-01-31 16:16:20,419 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 16:16:20,422 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 16:16:20,424 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 16:16:20,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2022-01-31 16:16:20,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 475. [2022-01-31 16:16:20,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 475 states, 470 states have (on average 1.4340425531914893) internal successors, (674), 470 states have internal predecessors, (674), 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 475 states to 475 states and 678 transitions. [2022-01-31 16:16:20,434 INFO L78 Accepts]: Start accepts. Automaton has 475 states and 678 transitions. Word has length 78 [2022-01-31 16:16:20,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:16:20,434 INFO L470 AbstractCegarLoop]: Abstraction has 475 states and 678 transitions. [2022-01-31 16:16:20,434 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 16:16:20,434 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states and 678 transitions. [2022-01-31 16:16:20,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-01-31 16:16:20,438 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:16:20,438 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 16:16:20,439 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-31 16:16:20,439 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:16:20,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:16:20,440 INFO L85 PathProgramCache]: Analyzing trace with hash 690032158, now seen corresponding path program 1 times [2022-01-31 16:16:20,440 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:16:20,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422713899] [2022-01-31 16:16:20,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:20,440 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:16:20,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:20,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:16:20,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:20,527 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 16:16:20,527 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:16:20,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422713899] [2022-01-31 16:16:20,527 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422713899] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:16:20,527 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:16:20,527 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:16:20,527 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867485642] [2022-01-31 16:16:20,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:16:20,529 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:16:20,529 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:16:20,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:16:20,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:16:20,530 INFO L87 Difference]: Start difference. First operand 475 states and 678 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 16:16:20,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:16:20,708 INFO L93 Difference]: Finished difference Result 714 states and 1017 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 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 16:16:20,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:16:20,712 INFO L225 Difference]: With dead ends: 714 [2022-01-31 16:16:20,712 INFO L226 Difference]: Without dead ends: 714 [2022-01-31 16:16:20,712 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 16:16:20,715 INFO L933 BasicCegarLoop]: 316 mSDtfsCounter, 296 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 296 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 16:16:20,715 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [296 Valid, 323 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-31 16:16:20,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 714 states. [2022-01-31 16:16:20,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 714 to 714. [2022-01-31 16:16:20,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 714 states, 709 states have (on average 1.4287729196050776) internal successors, (1013), 709 states have internal predecessors, (1013), 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 714 states to 714 states and 1017 transitions. [2022-01-31 16:16:20,732 INFO L78 Accepts]: Start accepts. Automaton has 714 states and 1017 transitions. Word has length 98 [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 714 states and 1017 transitions. [2022-01-31 16:16:20,733 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 16:16:20,733 INFO L276 IsEmpty]: Start isEmpty. Operand 714 states and 1017 transitions. [2022-01-31 16:16:20,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-01-31 16:16:20,738 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:16:20,738 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 16:16:20,738 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-31 16:16:20,739 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:16:20,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:16:20,739 INFO L85 PathProgramCache]: Analyzing trace with hash -1117815363, now seen corresponding path program 1 times [2022-01-31 16:16:20,739 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:16:20,739 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544623037] [2022-01-31 16:16:20,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:20,740 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:16:20,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:20,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:16:20,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:20,795 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 16:16:20,795 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:16:20,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544623037] [2022-01-31 16:16:20,796 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544623037] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:16:20,796 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:16:20,796 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:16:20,796 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860625905] [2022-01-31 16:16:20,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:16:20,797 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:16:20,799 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:16:20,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:16:20,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:16:20,799 INFO L87 Difference]: Start difference. First operand 714 states and 1017 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 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 16:16:20,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:16:20,967 INFO L93 Difference]: Finished difference Result 735 states and 1044 transitions. [2022-01-31 16:16:20,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:16:20,968 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 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 16:16:20,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:16:20,972 INFO L225 Difference]: With dead ends: 735 [2022-01-31 16:16:20,972 INFO L226 Difference]: Without dead ends: 735 [2022-01-31 16:16:20,972 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 16:16:20,973 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, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 16:16:20,974 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [183 Valid, 204 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-31 16:16:20,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 735 states. [2022-01-31 16:16:20,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 735 to 735. [2022-01-31 16:16:20,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 735 states, 730 states have (on average 1.4246575342465753) internal successors, (1040), 730 states have internal predecessors, (1040), 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 16:16:20,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 735 states to 735 states and 1044 transitions. [2022-01-31 16:16:20,988 INFO L78 Accepts]: Start accepts. Automaton has 735 states and 1044 transitions. Word has length 98 [2022-01-31 16:16:20,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:16:20,988 INFO L470 AbstractCegarLoop]: Abstraction has 735 states and 1044 transitions. [2022-01-31 16:16:20,988 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 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 16:16:20,988 INFO L276 IsEmpty]: Start isEmpty. Operand 735 states and 1044 transitions. [2022-01-31 16:16:20,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-01-31 16:16:20,990 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:16:20,990 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 16:16:20,990 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-31 16:16:20,990 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:16:20,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:16:20,991 INFO L85 PathProgramCache]: Analyzing trace with hash 531892615, now seen corresponding path program 1 times [2022-01-31 16:16:20,991 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:16:20,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053293742] [2022-01-31 16:16:20,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:20,991 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:16:21,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:21,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:16:21,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:21,049 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 16:16:21,049 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:16:21,049 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053293742] [2022-01-31 16:16:21,049 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053293742] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:16:21,049 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:16:21,049 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:16:21,050 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858953811] [2022-01-31 16:16:21,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:16:21,050 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:16:21,050 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:16:21,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:16:21,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:16:21,051 INFO L87 Difference]: Start difference. First operand 735 states and 1044 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 16:16:21,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:16:21,244 INFO L93 Difference]: Finished difference Result 975 states and 1389 transitions. [2022-01-31 16:16:21,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:16:21,244 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 16:16:21,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:16:21,248 INFO L225 Difference]: With dead ends: 975 [2022-01-31 16:16:21,248 INFO L226 Difference]: Without dead ends: 975 [2022-01-31 16:16:21,248 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 16:16:21,249 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, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 16:16:21,249 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [459 Valid, 171 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-31 16:16:21,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 975 states. [2022-01-31 16:16:21,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 975 to 975. [2022-01-31 16:16:21,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 975 states, 970 states have (on average 1.4278350515463918) internal successors, (1385), 970 states have internal predecessors, (1385), 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 16:16:21,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 975 states to 975 states and 1389 transitions. [2022-01-31 16:16:21,267 INFO L78 Accepts]: Start accepts. Automaton has 975 states and 1389 transitions. Word has length 100 [2022-01-31 16:16:21,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:16:21,267 INFO L470 AbstractCegarLoop]: Abstraction has 975 states and 1389 transitions. [2022-01-31 16:16:21,267 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 16:16:21,268 INFO L276 IsEmpty]: Start isEmpty. Operand 975 states and 1389 transitions. [2022-01-31 16:16:21,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2022-01-31 16:16:21,270 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:16:21,270 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 5, 5, 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] [2022-01-31 16:16:21,270 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-31 16:16:21,271 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:16:21,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:16:21,271 INFO L85 PathProgramCache]: Analyzing trace with hash -1531499270, now seen corresponding path program 1 times [2022-01-31 16:16:21,271 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:16:21,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405793037] [2022-01-31 16:16:21,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:21,272 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:16:21,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:21,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:16:21,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:21,315 INFO L134 CoverageAnalysis]: Checked inductivity of 428 backedges. 286 proven. 0 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2022-01-31 16:16:21,316 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:16:21,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405793037] [2022-01-31 16:16:21,316 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405793037] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:16:21,316 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:16:21,316 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:16:21,316 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385486294] [2022-01-31 16:16:21,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:16:21,317 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:16:21,317 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:16:21,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:16:21,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:16:21,318 INFO L87 Difference]: Start difference. First operand 975 states and 1389 transitions. Second operand has 4 states, 4 states have (on average 23.75) internal successors, (95), 3 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:21,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:16:21,499 INFO L93 Difference]: Finished difference Result 1179 states and 1685 transitions. [2022-01-31 16:16:21,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:16:21,503 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 3 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 169 [2022-01-31 16:16:21,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:16:21,507 INFO L225 Difference]: With dead ends: 1179 [2022-01-31 16:16:21,507 INFO L226 Difference]: Without dead ends: 1171 [2022-01-31 16:16:21,508 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 16:16:21,508 INFO L933 BasicCegarLoop]: 198 mSDtfsCounter, 237 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 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 16:16:21,508 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [237 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 16:16:21,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1171 states. [2022-01-31 16:16:21,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1171 to 1131. [2022-01-31 16:16:21,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1131 states, 1126 states have (on average 1.4431616341030196) internal successors, (1625), 1126 states have internal predecessors, (1625), 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 16:16:21,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1131 states to 1131 states and 1629 transitions. [2022-01-31 16:16:21,525 INFO L78 Accepts]: Start accepts. Automaton has 1131 states and 1629 transitions. Word has length 169 [2022-01-31 16:16:21,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:16:21,526 INFO L470 AbstractCegarLoop]: Abstraction has 1131 states and 1629 transitions. [2022-01-31 16:16:21,526 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 3 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:21,526 INFO L276 IsEmpty]: Start isEmpty. Operand 1131 states and 1629 transitions. [2022-01-31 16:16:21,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2022-01-31 16:16:21,529 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:16:21,529 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 9, 9, 8, 8, 6, 6, 4, 4, 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] [2022-01-31 16:16:21,529 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-31 16:16:21,529 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:16:21,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:16:21,530 INFO L85 PathProgramCache]: Analyzing trace with hash -1426975046, now seen corresponding path program 1 times [2022-01-31 16:16:21,530 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:16:21,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049209913] [2022-01-31 16:16:21,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:21,530 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:16:21,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:21,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:16:21,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:21,582 INFO L134 CoverageAnalysis]: Checked inductivity of 548 backedges. 366 proven. 0 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2022-01-31 16:16:21,582 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:16:21,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049209913] [2022-01-31 16:16:21,583 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049209913] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:16:21,583 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:16:21,583 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:16:21,583 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759337933] [2022-01-31 16:16:21,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:16:21,584 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:16:21,584 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:16:21,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:16:21,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:16:21,585 INFO L87 Difference]: Start difference. First operand 1131 states and 1629 transitions. Second operand has 4 states, 4 states have (on average 30.5) internal successors, (122), 3 states have internal predecessors, (122), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:21,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:16:21,746 INFO L93 Difference]: Finished difference Result 1237 states and 1755 transitions. [2022-01-31 16:16:21,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:16:21,747 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.5) internal successors, (122), 3 states have internal predecessors, (122), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 205 [2022-01-31 16:16:21,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:16:21,751 INFO L225 Difference]: With dead ends: 1237 [2022-01-31 16:16:21,751 INFO L226 Difference]: Without dead ends: 1237 [2022-01-31 16:16:21,752 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 16:16:21,752 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 16:16:21,753 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 16:16:21,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1237 states. [2022-01-31 16:16:21,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1237 to 1223. [2022-01-31 16:16:21,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1223 states, 1218 states have (on average 1.4261083743842364) internal successors, (1737), 1218 states have internal predecessors, (1737), 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 16:16:21,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1223 states to 1223 states and 1741 transitions. [2022-01-31 16:16:21,772 INFO L78 Accepts]: Start accepts. Automaton has 1223 states and 1741 transitions. Word has length 205 [2022-01-31 16:16:21,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:16:21,772 INFO L470 AbstractCegarLoop]: Abstraction has 1223 states and 1741 transitions. [2022-01-31 16:16:21,772 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.5) internal successors, (122), 3 states have internal predecessors, (122), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:21,772 INFO L276 IsEmpty]: Start isEmpty. Operand 1223 states and 1741 transitions. [2022-01-31 16:16:21,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2022-01-31 16:16:21,775 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:16:21,776 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 10, 10, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:16:21,776 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-31 16:16:21,776 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:16:21,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:16:21,778 INFO L85 PathProgramCache]: Analyzing trace with hash 1195422498, now seen corresponding path program 1 times [2022-01-31 16:16:21,778 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:16:21,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339810114] [2022-01-31 16:16:21,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:21,779 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:16:21,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:21,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:16:21,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:21,837 INFO L134 CoverageAnalysis]: Checked inductivity of 688 backedges. 456 proven. 0 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2022-01-31 16:16:21,837 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:16:21,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339810114] [2022-01-31 16:16:21,838 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339810114] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:16:21,838 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:16:21,838 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:16:21,838 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911318811] [2022-01-31 16:16:21,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:16:21,838 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:16:21,838 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:16:21,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:16:21,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:16:21,839 INFO L87 Difference]: Start difference. First operand 1223 states and 1741 transitions. Second operand has 4 states, 4 states have (on average 32.0) internal successors, (128), 3 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:21,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:16:21,999 INFO L93 Difference]: Finished difference Result 1335 states and 1877 transitions. [2022-01-31 16:16:22,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:16:22,000 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 3 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 226 [2022-01-31 16:16:22,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:16:22,004 INFO L225 Difference]: With dead ends: 1335 [2022-01-31 16:16:22,004 INFO L226 Difference]: Without dead ends: 1335 [2022-01-31 16:16:22,005 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 16:16:22,005 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, 0.1s IncrementalHoareTripleChecker+Time [2022-01-31 16:16:22,006 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [184 Valid, 193 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-31 16:16:22,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1335 states. [2022-01-31 16:16:22,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1335 to 1323. [2022-01-31 16:16:22,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1323 states, 1318 states have (on average 1.4089529590288317) internal successors, (1857), 1318 states have internal predecessors, (1857), 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 16:16:22,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1323 states to 1323 states and 1861 transitions. [2022-01-31 16:16:22,028 INFO L78 Accepts]: Start accepts. Automaton has 1323 states and 1861 transitions. Word has length 226 [2022-01-31 16:16:22,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:16:22,028 INFO L470 AbstractCegarLoop]: Abstraction has 1323 states and 1861 transitions. [2022-01-31 16:16:22,028 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 3 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:22,028 INFO L276 IsEmpty]: Start isEmpty. Operand 1323 states and 1861 transitions. [2022-01-31 16:16:22,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-01-31 16:16:22,032 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:16:22,032 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 11, 11, 10, 10, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:16:22,032 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-31 16:16:22,033 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:16:22,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:16:22,033 INFO L85 PathProgramCache]: Analyzing trace with hash -454255385, now seen corresponding path program 1 times [2022-01-31 16:16:22,033 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:16:22,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165279418] [2022-01-31 16:16:22,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:22,033 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:16:22,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:22,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:16:22,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:22,119 INFO L134 CoverageAnalysis]: Checked inductivity of 846 backedges. 546 proven. 0 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2022-01-31 16:16:22,119 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:16:22,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165279418] [2022-01-31 16:16:22,119 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165279418] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:16:22,119 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:16:22,119 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:16:22,119 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482471363] [2022-01-31 16:16:22,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:16:22,120 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:16:22,120 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:16:22,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:16:22,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:16:22,121 INFO L87 Difference]: Start difference. First operand 1323 states and 1861 transitions. Second operand has 4 states, 4 states have (on average 33.75) internal successors, (135), 3 states have internal predecessors, (135), 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 16:16:22,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:16:22,282 INFO L93 Difference]: Finished difference Result 1443 states and 2001 transitions. [2022-01-31 16:16:22,282 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 33.75) internal successors, (135), 3 states have internal predecessors, (135), 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 250 [2022-01-31 16:16:22,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:16:22,288 INFO L225 Difference]: With dead ends: 1443 [2022-01-31 16:16:22,288 INFO L226 Difference]: Without dead ends: 1443 [2022-01-31 16:16:22,288 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 16:16:22,289 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 16:16:22,289 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 16:16:22,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1443 states. [2022-01-31 16:16:22,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1443 to 1435. [2022-01-31 16:16:22,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1435 states, 1430 states have (on average 1.3909090909090909) internal successors, (1989), 1430 states have internal predecessors, (1989), 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 16:16:22,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1435 states to 1435 states and 1993 transitions. [2022-01-31 16:16:22,319 INFO L78 Accepts]: Start accepts. Automaton has 1435 states and 1993 transitions. Word has length 250 [2022-01-31 16:16:22,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:16:22,319 INFO L470 AbstractCegarLoop]: Abstraction has 1435 states and 1993 transitions. [2022-01-31 16:16:22,319 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.75) internal successors, (135), 3 states have internal predecessors, (135), 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 16:16:22,319 INFO L276 IsEmpty]: Start isEmpty. Operand 1435 states and 1993 transitions. [2022-01-31 16:16:22,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-01-31 16:16:22,323 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:16:22,323 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 11, 11, 10, 10, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:16:22,323 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-31 16:16:22,324 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:16:22,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:16:22,324 INFO L85 PathProgramCache]: Analyzing trace with hash -746641210, now seen corresponding path program 1 times [2022-01-31 16:16:22,324 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:16:22,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66653615] [2022-01-31 16:16:22,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:22,325 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:16:22,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:22,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:16:22,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:22,379 INFO L134 CoverageAnalysis]: Checked inductivity of 846 backedges. 546 proven. 0 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2022-01-31 16:16:22,379 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:16:22,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66653615] [2022-01-31 16:16:22,380 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66653615] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:16:22,380 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:16:22,380 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:16:22,380 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772954667] [2022-01-31 16:16:22,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:16:22,381 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:16:22,381 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:16:22,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:16:22,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:16:22,381 INFO L87 Difference]: Start difference. First operand 1435 states and 1993 transitions. Second operand has 4 states, 4 states have (on average 33.75) internal successors, (135), 3 states have internal predecessors, (135), 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 16:16:22,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:16:22,576 INFO L93 Difference]: Finished difference Result 1571 states and 2153 transitions. [2022-01-31 16:16:22,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:16:22,577 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.75) internal successors, (135), 3 states have internal predecessors, (135), 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 250 [2022-01-31 16:16:22,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:16:22,583 INFO L225 Difference]: With dead ends: 1571 [2022-01-31 16:16:22,583 INFO L226 Difference]: Without dead ends: 1571 [2022-01-31 16:16:22,583 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 16:16:22,584 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 16:16:22,585 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 16:16:22,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1571 states. [2022-01-31 16:16:22,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1571 to 1559. [2022-01-31 16:16:22,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1559 states, 1554 states have (on average 1.3725868725868726) internal successors, (2133), 1554 states have internal predecessors, (2133), 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 16:16:22,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1559 states to 1559 states and 2137 transitions. [2022-01-31 16:16:22,619 INFO L78 Accepts]: Start accepts. Automaton has 1559 states and 2137 transitions. Word has length 250 [2022-01-31 16:16:22,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:16:22,620 INFO L470 AbstractCegarLoop]: Abstraction has 1559 states and 2137 transitions. [2022-01-31 16:16:22,620 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.75) internal successors, (135), 3 states have internal predecessors, (135), 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 16:16:22,620 INFO L276 IsEmpty]: Start isEmpty. Operand 1559 states and 2137 transitions. [2022-01-31 16:16:22,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2022-01-31 16:16:22,625 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:16:22,625 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 12, 12, 11, 11, 9, 9, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:16:22,625 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-31 16:16:22,625 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:16:22,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:16:22,626 INFO L85 PathProgramCache]: Analyzing trace with hash -514717482, now seen corresponding path program 1 times [2022-01-31 16:16:22,626 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:16:22,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52924348] [2022-01-31 16:16:22,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:22,626 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:16:22,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:22,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:16:22,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:22,701 INFO L134 CoverageAnalysis]: Checked inductivity of 1030 backedges. 660 proven. 0 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked. [2022-01-31 16:16:22,702 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:16:22,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52924348] [2022-01-31 16:16:22,702 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52924348] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:16:22,702 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:16:22,702 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:16:22,702 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826089710] [2022-01-31 16:16:22,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:16:22,703 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:16:22,703 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:16:22,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:16:22,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:16:22,703 INFO L87 Difference]: Start difference. First operand 1559 states and 2137 transitions. Second operand has 4 states, 4 states have (on average 37.0) internal successors, (148), 3 states have internal predecessors, (148), 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 16:16:22,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:16:22,883 INFO L93 Difference]: Finished difference Result 3101 states and 4249 transitions. [2022-01-31 16:16:22,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:16:22,883 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.0) internal successors, (148), 3 states have internal predecessors, (148), 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 280 [2022-01-31 16:16:22,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:16:22,893 INFO L225 Difference]: With dead ends: 3101 [2022-01-31 16:16:22,893 INFO L226 Difference]: Without dead ends: 3101 [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]: 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, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 16:16:22,896 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [299 Valid, 333 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-31 16:16:22,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3101 states. [2022-01-31 16:16:22,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3101 to 3099. [2022-01-31 16:16:22,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3099 states, 3094 states have (on average 1.3716871363930188) internal successors, (4244), 3094 states have internal predecessors, (4244), 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 16:16:22,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3099 states to 3099 states and 4248 transitions. [2022-01-31 16:16:22,984 INFO L78 Accepts]: Start accepts. Automaton has 3099 states and 4248 transitions. Word has length 280 [2022-01-31 16:16:22,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:16:22,984 INFO L470 AbstractCegarLoop]: Abstraction has 3099 states and 4248 transitions. [2022-01-31 16:16:22,985 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.0) internal successors, (148), 3 states have internal predecessors, (148), 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 16:16:22,985 INFO L276 IsEmpty]: Start isEmpty. Operand 3099 states and 4248 transitions. [2022-01-31 16:16:22,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2022-01-31 16:16:22,994 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:16:22,995 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 12, 12, 11, 11, 9, 9, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:16:22,995 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-31 16:16:22,995 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:16:22,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:16:22,996 INFO L85 PathProgramCache]: Analyzing trace with hash -807103307, now seen corresponding path program 1 times [2022-01-31 16:16:22,996 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:16:22,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207631642] [2022-01-31 16:16:22,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:22,996 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:16:23,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:23,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:16:23,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:23,064 INFO L134 CoverageAnalysis]: Checked inductivity of 1030 backedges. 642 proven. 0 refuted. 0 times theorem prover too weak. 388 trivial. 0 not checked. [2022-01-31 16:16:23,064 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:16:23,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207631642] [2022-01-31 16:16:23,066 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207631642] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:16:23,066 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:16:23,066 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:16:23,066 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124964912] [2022-01-31 16:16:23,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:16:23,067 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:16:23,067 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:16:23,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:16:23,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:16:23,067 INFO L87 Difference]: Start difference. First operand 3099 states and 4248 transitions. Second operand has 4 states, 4 states have (on average 36.5) internal successors, (146), 3 states have internal predecessors, (146), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:23,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:16:23,267 INFO L93 Difference]: Finished difference Result 3399 states and 4588 transitions. [2022-01-31 16:16:23,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:16:23,268 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.5) internal successors, (146), 3 states have internal predecessors, (146), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 280 [2022-01-31 16:16:23,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:16:23,279 INFO L225 Difference]: With dead ends: 3399 [2022-01-31 16:16:23,279 INFO L226 Difference]: Without dead ends: 3399 [2022-01-31 16:16:23,280 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 16:16:23,280 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 16:16:23,280 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 16:16:23,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3399 states. [2022-01-31 16:16:23,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3399 to 3383. [2022-01-31 16:16:23,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3383 states, 3378 states have (on average 1.3522794552989934) internal successors, (4568), 3378 states have internal predecessors, (4568), 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 16:16:23,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3383 states to 3383 states and 4572 transitions. [2022-01-31 16:16:23,343 INFO L78 Accepts]: Start accepts. Automaton has 3383 states and 4572 transitions. Word has length 280 [2022-01-31 16:16:23,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:16:23,344 INFO L470 AbstractCegarLoop]: Abstraction has 3383 states and 4572 transitions. [2022-01-31 16:16:23,344 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.5) internal successors, (146), 3 states have internal predecessors, (146), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:23,344 INFO L276 IsEmpty]: Start isEmpty. Operand 3383 states and 4572 transitions. [2022-01-31 16:16:23,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2022-01-31 16:16:23,352 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:16:23,352 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 13, 13, 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, 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 16:16:23,352 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-31 16:16:23,352 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:16:23,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:16:23,353 INFO L85 PathProgramCache]: Analyzing trace with hash 574436732, now seen corresponding path program 1 times [2022-01-31 16:16:23,353 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:16:23,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868356181] [2022-01-31 16:16:23,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:23,353 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:16:23,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:23,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:16:23,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:23,407 INFO L134 CoverageAnalysis]: Checked inductivity of 1232 backedges. 734 proven. 0 refuted. 0 times theorem prover too weak. 498 trivial. 0 not checked. [2022-01-31 16:16:23,408 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:16:23,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868356181] [2022-01-31 16:16:23,408 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868356181] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:16:23,408 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:16:23,408 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:16:23,408 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156616097] [2022-01-31 16:16:23,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:16:23,409 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:16:23,409 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:16:23,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:16:23,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:16:23,409 INFO L87 Difference]: Start difference. First operand 3383 states and 4572 transitions. Second operand has 4 states, 4 states have (on average 37.25) internal successors, (149), 3 states have internal predecessors, (149), 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 16:16:23,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:16:23,588 INFO L93 Difference]: Finished difference Result 3531 states and 4740 transitions. [2022-01-31 16:16:23,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:16:23,588 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.25) internal successors, (149), 3 states have internal predecessors, (149), 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 304 [2022-01-31 16:16:23,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:16:23,599 INFO L225 Difference]: With dead ends: 3531 [2022-01-31 16:16:23,599 INFO L226 Difference]: Without dead ends: 3531 [2022-01-31 16:16:23,599 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 16:16:23,600 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 16:16:23,600 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 16:16:23,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3531 states. [2022-01-31 16:16:23,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3531 to 3515. [2022-01-31 16:16:23,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3515 states, 3510 states have (on average 1.3447293447293447) internal successors, (4720), 3510 states have internal predecessors, (4720), 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 16:16:23,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3515 states to 3515 states and 4724 transitions. [2022-01-31 16:16:23,662 INFO L78 Accepts]: Start accepts. Automaton has 3515 states and 4724 transitions. Word has length 304 [2022-01-31 16:16:23,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:16:23,663 INFO L470 AbstractCegarLoop]: Abstraction has 3515 states and 4724 transitions. [2022-01-31 16:16:23,663 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.25) internal successors, (149), 3 states have internal predecessors, (149), 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 16:16:23,663 INFO L276 IsEmpty]: Start isEmpty. Operand 3515 states and 4724 transitions. [2022-01-31 16:16:23,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2022-01-31 16:16:23,671 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:16:23,672 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 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, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:16:23,672 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-31 16:16:23,672 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:16:23,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:16:23,673 INFO L85 PathProgramCache]: Analyzing trace with hash -113569885, now seen corresponding path program 1 times [2022-01-31 16:16:23,673 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:16:23,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084244315] [2022-01-31 16:16:23,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:23,673 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:16:23,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:23,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:16:23,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:23,727 INFO L134 CoverageAnalysis]: Checked inductivity of 1244 backedges. 638 proven. 0 refuted. 0 times theorem prover too weak. 606 trivial. 0 not checked. [2022-01-31 16:16:23,727 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:16:23,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084244315] [2022-01-31 16:16:23,727 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084244315] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:16:23,728 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:16:23,728 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:16:23,728 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873945377] [2022-01-31 16:16:23,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:16:23,728 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:16:23,728 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:16:23,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:16:23,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:16:23,729 INFO L87 Difference]: Start difference. First operand 3515 states and 4724 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 16:16:23,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:16:23,968 INFO L93 Difference]: Finished difference Result 3915 states and 5196 transitions. [2022-01-31 16:16:23,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:16:23,969 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 16:16:23,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:16:23,981 INFO L225 Difference]: With dead ends: 3915 [2022-01-31 16:16:23,981 INFO L226 Difference]: Without dead ends: 3915 [2022-01-31 16:16:23,982 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 16:16:23,982 INFO L933 BasicCegarLoop]: 187 mSDtfsCounter, 232 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 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 16:16:23,982 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [232 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 16:16:23,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3915 states. [2022-01-31 16:16:24,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3915 to 3827. [2022-01-31 16:16:24,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3827 states, 3822 states have (on average 1.3312401883830456) internal successors, (5088), 3822 states have internal predecessors, (5088), 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 16:16:24,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3827 states to 3827 states and 5092 transitions. [2022-01-31 16:16:24,045 INFO L78 Accepts]: Start accepts. Automaton has 3827 states and 5092 transitions. Word has length 315 [2022-01-31 16:16:24,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:16:24,045 INFO L470 AbstractCegarLoop]: Abstraction has 3827 states and 5092 transitions. [2022-01-31 16:16:24,046 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 16:16:24,046 INFO L276 IsEmpty]: Start isEmpty. Operand 3827 states and 5092 transitions. [2022-01-31 16:16:24,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2022-01-31 16:16:24,054 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:16:24,055 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 14, 14, 14, 14, 14, 12, 12, 10, 10, 8, 8, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:16:24,055 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-31 16:16:24,055 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:16:24,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:16:24,055 INFO L85 PathProgramCache]: Analyzing trace with hash -1657886751, now seen corresponding path program 1 times [2022-01-31 16:16:24,056 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:16:24,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802853529] [2022-01-31 16:16:24,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:24,056 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:16:24,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:24,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:16:24,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:24,112 INFO L134 CoverageAnalysis]: Checked inductivity of 1340 backedges. 694 proven. 0 refuted. 0 times theorem prover too weak. 646 trivial. 0 not checked. [2022-01-31 16:16:24,112 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:16:24,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802853529] [2022-01-31 16:16:24,112 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802853529] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:16:24,112 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:16:24,112 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:16:24,112 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712487384] [2022-01-31 16:16:24,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:16:24,113 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:16:24,113 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:16:24,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:16:24,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:16:24,114 INFO L87 Difference]: Start difference. First operand 3827 states and 5092 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 16:16:24,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:16:24,306 INFO L93 Difference]: Finished difference Result 4235 states and 5540 transitions. [2022-01-31 16:16:24,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:16:24,307 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 329 [2022-01-31 16:16:24,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:16:24,319 INFO L225 Difference]: With dead ends: 4235 [2022-01-31 16:16:24,319 INFO L226 Difference]: Without dead ends: 4235 [2022-01-31 16:16:24,320 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 16:16:24,320 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, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 16:16:24,320 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [279 Valid, 192 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-31 16:16:24,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4235 states. [2022-01-31 16:16:24,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4235 to 3947. [2022-01-31 16:16:24,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3947 states, 3942 states have (on average 1.3272450532724505) internal successors, (5232), 3942 states have internal predecessors, (5232), 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 16:16:24,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3947 states to 3947 states and 5236 transitions. [2022-01-31 16:16:24,374 INFO L78 Accepts]: Start accepts. Automaton has 3947 states and 5236 transitions. Word has length 329 [2022-01-31 16:16:24,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:16:24,374 INFO L470 AbstractCegarLoop]: Abstraction has 3947 states and 5236 transitions. [2022-01-31 16:16:24,375 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 16:16:24,375 INFO L276 IsEmpty]: Start isEmpty. Operand 3947 states and 5236 transitions. [2022-01-31 16:16:24,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2022-01-31 16:16:24,382 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:16:24,382 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 14, 14, 14, 14, 14, 12, 12, 10, 10, 8, 8, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:16:24,382 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-31 16:16:24,382 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:16:24,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:16:24,383 INFO L85 PathProgramCache]: Analyzing trace with hash -305167178, now seen corresponding path program 1 times [2022-01-31 16:16:24,383 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:16:24,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927672494] [2022-01-31 16:16:24,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:24,383 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:16:24,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:24,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:16:24,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:24,443 INFO L134 CoverageAnalysis]: Checked inductivity of 1340 backedges. 799 proven. 0 refuted. 0 times theorem prover too weak. 541 trivial. 0 not checked. [2022-01-31 16:16:24,443 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:16:24,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927672494] [2022-01-31 16:16:24,443 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927672494] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:16:24,444 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:16:24,444 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:16:24,444 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763711289] [2022-01-31 16:16:24,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:16:24,444 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:16:24,444 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:16:24,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:16:24,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:16:24,445 INFO L87 Difference]: Start difference. First operand 3947 states and 5236 transitions. Second operand has 4 states, 4 states have (on average 36.75) internal successors, (147), 3 states have internal predecessors, (147), 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 16:16:24,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:16:24,640 INFO L93 Difference]: Finished difference Result 7377 states and 9839 transitions. [2022-01-31 16:16:24,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:16:24,640 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.75) internal successors, (147), 3 states have internal predecessors, (147), 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 330 [2022-01-31 16:16:24,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:16:24,656 INFO L225 Difference]: With dead ends: 7377 [2022-01-31 16:16:24,656 INFO L226 Difference]: Without dead ends: 7377 [2022-01-31 16:16:24,657 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 16:16:24,657 INFO L933 BasicCegarLoop]: 316 mSDtfsCounter, 262 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 16:16:24,657 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [262 Valid, 323 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-31 16:16:24,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7377 states. [2022-01-31 16:16:24,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7377 to 7375. [2022-01-31 16:16:24,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7375 states, 7370 states have (on average 1.3343283582089551) internal successors, (9834), 7370 states have internal predecessors, (9834), 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 16:16:24,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7375 states to 7375 states and 9838 transitions. [2022-01-31 16:16:24,766 INFO L78 Accepts]: Start accepts. Automaton has 7375 states and 9838 transitions. Word has length 330 [2022-01-31 16:16:24,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:16:24,767 INFO L470 AbstractCegarLoop]: Abstraction has 7375 states and 9838 transitions. [2022-01-31 16:16:24,767 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.75) internal successors, (147), 3 states have internal predecessors, (147), 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 16:16:24,767 INFO L276 IsEmpty]: Start isEmpty. Operand 7375 states and 9838 transitions. [2022-01-31 16:16:24,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2022-01-31 16:16:24,777 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:16:24,777 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 14, 14, 14, 14, 14, 12, 12, 10, 10, 8, 8, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:16:24,777 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-31 16:16:24,778 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:16:24,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:16:24,778 INFO L85 PathProgramCache]: Analyzing trace with hash 1008792070, now seen corresponding path program 1 times [2022-01-31 16:16:24,778 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:16:24,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758010646] [2022-01-31 16:16:24,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:24,779 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:16:24,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:24,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:16:24,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:24,834 INFO L134 CoverageAnalysis]: Checked inductivity of 1340 backedges. 803 proven. 0 refuted. 0 times theorem prover too weak. 537 trivial. 0 not checked. [2022-01-31 16:16:24,834 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:16:24,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758010646] [2022-01-31 16:16:24,834 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758010646] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:16:24,834 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:16:24,834 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:16:24,834 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234608537] [2022-01-31 16:16:24,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:16:24,835 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:16:24,835 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:16:24,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:16:24,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:16:24,836 INFO L87 Difference]: Start difference. First operand 7375 states and 9838 transitions. Second operand has 4 states, 4 states have (on average 41.5) internal successors, (166), 3 states have internal predecessors, (166), 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 16:16:25,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:16:25,050 INFO L93 Difference]: Finished difference Result 7383 states and 9590 transitions. [2022-01-31 16:16:25,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:16:25,051 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.5) internal successors, (166), 3 states have internal predecessors, (166), 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 331 [2022-01-31 16:16:25,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:16:25,065 INFO L225 Difference]: With dead ends: 7383 [2022-01-31 16:16:25,065 INFO L226 Difference]: Without dead ends: 7383 [2022-01-31 16:16:25,066 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 16:16:25,066 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 16:16:25,067 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 16:16:25,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7383 states. [2022-01-31 16:16:25,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7383 to 7351. [2022-01-31 16:16:25,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7351 states, 7346 states have (on average 1.3005717397222978) internal successors, (9554), 7346 states have internal predecessors, (9554), 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 16:16:25,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7351 states to 7351 states and 9558 transitions. [2022-01-31 16:16:25,171 INFO L78 Accepts]: Start accepts. Automaton has 7351 states and 9558 transitions. Word has length 331 [2022-01-31 16:16:25,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:16:25,172 INFO L470 AbstractCegarLoop]: Abstraction has 7351 states and 9558 transitions. [2022-01-31 16:16:25,172 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.5) internal successors, (166), 3 states have internal predecessors, (166), 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 16:16:25,172 INFO L276 IsEmpty]: Start isEmpty. Operand 7351 states and 9558 transitions. [2022-01-31 16:16:25,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2022-01-31 16:16:25,182 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:16:25,183 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:16:25,183 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-31 16:16:25,183 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:16:25,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:16:25,183 INFO L85 PathProgramCache]: Analyzing trace with hash 1292890563, now seen corresponding path program 1 times [2022-01-31 16:16:25,184 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:16:25,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660502741] [2022-01-31 16:16:25,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:25,184 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:16:25,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:25,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:16:25,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:25,271 INFO L134 CoverageAnalysis]: Checked inductivity of 1490 backedges. 874 proven. 10 refuted. 0 times theorem prover too weak. 606 trivial. 0 not checked. [2022-01-31 16:16:25,271 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:16:25,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660502741] [2022-01-31 16:16:25,271 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660502741] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-31 16:16:25,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1353788052] [2022-01-31 16:16:25,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:25,272 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 16:16:25,272 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 16:16:25,275 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 16:16:25,301 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 16:16:25,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:25,421 INFO L263 TraceCheckSpWp]: Trace formula consists of 702 conjuncts, 5 conjunts are in the unsatisfiable core [2022-01-31 16:16:25,434 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-31 16:16:26,002 INFO L134 CoverageAnalysis]: Checked inductivity of 1490 backedges. 112 proven. 0 refuted. 0 times theorem prover too weak. 1378 trivial. 0 not checked. [2022-01-31 16:16:26,002 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-31 16:16:26,002 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1353788052] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:16:26,002 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-01-31 16:16:26,002 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2022-01-31 16:16:26,003 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596864359] [2022-01-31 16:16:26,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:16:26,004 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:16:26,004 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:16:26,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:16:26,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-01-31 16:16:26,005 INFO L87 Difference]: Start difference. First operand 7351 states and 9558 transitions. Second operand has 5 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 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 16:16:26,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:16:26,160 INFO L93 Difference]: Finished difference Result 7529 states and 9770 transitions. [2022-01-31 16:16:26,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:16:26,160 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 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 354 [2022-01-31 16:16:26,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:16:26,173 INFO L225 Difference]: With dead ends: 7529 [2022-01-31 16:16:26,174 INFO L226 Difference]: Without dead ends: 7501 [2022-01-31 16:16:26,174 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 360 GetRequests, 353 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 16:16:26,174 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 16:16:26,175 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 16:16:26,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7501 states. [2022-01-31 16:16:26,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7501 to 7357. [2022-01-31 16:16:26,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7357 states, 7352 states have (on average 1.3005984766050054) internal successors, (9562), 7352 states have internal predecessors, (9562), 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 16:16:26,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7357 states to 7357 states and 9566 transitions. [2022-01-31 16:16:26,272 INFO L78 Accepts]: Start accepts. Automaton has 7357 states and 9566 transitions. Word has length 354 [2022-01-31 16:16:26,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:16:26,272 INFO L470 AbstractCegarLoop]: Abstraction has 7357 states and 9566 transitions. [2022-01-31 16:16:26,273 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 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 16:16:26,273 INFO L276 IsEmpty]: Start isEmpty. Operand 7357 states and 9566 transitions. [2022-01-31 16:16:26,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 368 [2022-01-31 16:16:26,282 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:16:26,282 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:16:26,311 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 16:16:26,505 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 16:16:26,506 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:16:26,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:16:26,506 INFO L85 PathProgramCache]: Analyzing trace with hash -1908767314, now seen corresponding path program 1 times [2022-01-31 16:16:26,506 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:16:26,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446387679] [2022-01-31 16:16:26,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:26,507 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:16:26,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:26,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:16:26,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:26,582 INFO L134 CoverageAnalysis]: Checked inductivity of 1563 backedges. 904 proven. 10 refuted. 0 times theorem prover too weak. 649 trivial. 0 not checked. [2022-01-31 16:16:26,582 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:16:26,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446387679] [2022-01-31 16:16:26,583 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446387679] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-31 16:16:26,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2123688846] [2022-01-31 16:16:26,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:26,583 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 16:16:26,583 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 16:16:26,584 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 16:16:26,589 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 16:16:26,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:26,750 INFO L263 TraceCheckSpWp]: Trace formula consists of 734 conjuncts, 3 conjunts are in the unsatisfiable core [2022-01-31 16:16:26,761 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-31 16:16:27,324 INFO L134 CoverageAnalysis]: Checked inductivity of 1563 backedges. 904 proven. 10 refuted. 0 times theorem prover too weak. 649 trivial. 0 not checked. [2022-01-31 16:16:27,324 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-31 16:16:27,822 INFO L134 CoverageAnalysis]: Checked inductivity of 1563 backedges. 904 proven. 10 refuted. 0 times theorem prover too weak. 649 trivial. 0 not checked. [2022-01-31 16:16:27,823 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2123688846] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-31 16:16:27,823 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-31 16:16:27,823 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 7 [2022-01-31 16:16:27,823 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959975428] [2022-01-31 16:16:27,823 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-31 16:16:27,824 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-31 16:16:27,824 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:16:27,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-31 16:16:27,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-01-31 16:16:27,825 INFO L87 Difference]: Start difference. First operand 7357 states and 9566 transitions. Second operand has 7 states, 7 states have (on average 33.714285714285715) internal successors, (236), 6 states have internal predecessors, (236), 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 16:16:28,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:16:28,614 INFO L93 Difference]: Finished difference Result 11133 states and 14243 transitions. [2022-01-31 16:16:28,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-31 16:16:28,615 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 33.714285714285715) internal successors, (236), 6 states have internal predecessors, (236), 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 367 [2022-01-31 16:16:28,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:16:28,634 INFO L225 Difference]: With dead ends: 11133 [2022-01-31 16:16:28,634 INFO L226 Difference]: Without dead ends: 11125 [2022-01-31 16:16:28,634 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 749 GetRequests, 739 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-01-31 16:16:28,635 INFO L933 BasicCegarLoop]: 385 mSDtfsCounter, 411 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 1218 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 411 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 1290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 1218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-31 16:16:28,636 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [411 Valid, 407 Invalid, 1290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 1218 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-31 16:16:28,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11125 states. [2022-01-31 16:16:28,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11125 to 8461. [2022-01-31 16:16:28,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8461 states, 8456 states have (on average 1.3077105014191106) internal successors, (11058), 8456 states have internal predecessors, (11058), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:28,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8461 states to 8461 states and 11062 transitions. [2022-01-31 16:16:28,818 INFO L78 Accepts]: Start accepts. Automaton has 8461 states and 11062 transitions. Word has length 367 [2022-01-31 16:16:28,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:16:28,819 INFO L470 AbstractCegarLoop]: Abstraction has 8461 states and 11062 transitions. [2022-01-31 16:16:28,819 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 33.714285714285715) internal successors, (236), 6 states have internal predecessors, (236), 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 16:16:28,819 INFO L276 IsEmpty]: Start isEmpty. Operand 8461 states and 11062 transitions. [2022-01-31 16:16:28,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 381 [2022-01-31 16:16:28,829 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:16:28,829 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 16:16:28,853 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 16:16:29,043 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 16:16:29,043 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:16:29,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:16:29,044 INFO L85 PathProgramCache]: Analyzing trace with hash 677510765, now seen corresponding path program 2 times [2022-01-31 16:16:29,044 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:16:29,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092344112] [2022-01-31 16:16:29,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:29,044 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:16:29,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:29,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:16:29,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:29,117 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 16:16:29,118 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:16:29,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092344112] [2022-01-31 16:16:29,118 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092344112] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-31 16:16:29,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2003802961] [2022-01-31 16:16:29,118 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-31 16:16:29,119 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 16:16:29,119 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 16:16:29,120 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 16:16:29,148 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 16:16:29,275 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-31 16:16:29,275 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-31 16:16:29,278 INFO L263 TraceCheckSpWp]: Trace formula consists of 766 conjuncts, 3 conjunts are in the unsatisfiable core [2022-01-31 16:16:29,282 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-31 16:16:29,759 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 16:16:29,759 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-31 16:16:30,223 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 16:16:30,224 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2003802961] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-31 16:16:30,224 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-31 16:16:30,224 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 7 [2022-01-31 16:16:30,224 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124444768] [2022-01-31 16:16:30,224 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-31 16:16:30,225 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-31 16:16:30,225 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:16:30,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-31 16:16:30,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-01-31 16:16:30,226 INFO L87 Difference]: Start difference. First operand 8461 states and 11062 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 16:16:30,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:16:30,659 INFO L93 Difference]: Finished difference Result 10657 states and 13686 transitions. [2022-01-31 16:16:30,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-31 16:16:30,660 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 16:16:30,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:16:30,678 INFO L225 Difference]: With dead ends: 10657 [2022-01-31 16:16:30,679 INFO L226 Difference]: Without dead ends: 10649 [2022-01-31 16:16:30,679 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 16:16:30,680 INFO L933 BasicCegarLoop]: 202 mSDtfsCounter, 627 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 532 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 627 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 644 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 532 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-31 16:16:30,680 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [627 Valid, 219 Invalid, 644 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 532 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-31 16:16:30,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10649 states. [2022-01-31 16:16:30,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10649 to 8499. [2022-01-31 16:16:30,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8499 states, 8494 states have (on average 1.276312691311514) internal successors, (10841), 8494 states have internal predecessors, (10841), 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 16:16:30,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8499 states to 8499 states and 10845 transitions. [2022-01-31 16:16:30,830 INFO L78 Accepts]: Start accepts. Automaton has 8499 states and 10845 transitions. Word has length 380 [2022-01-31 16:16:30,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:16:30,830 INFO L470 AbstractCegarLoop]: Abstraction has 8499 states and 10845 transitions. [2022-01-31 16:16:30,831 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 16:16:30,831 INFO L276 IsEmpty]: Start isEmpty. Operand 8499 states and 10845 transitions. [2022-01-31 16:16:30,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 420 [2022-01-31 16:16:30,842 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:16:30,843 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 16:16:30,875 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 16:16:31,059 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 16:16:31,060 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:16:31,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:16:31,060 INFO L85 PathProgramCache]: Analyzing trace with hash 1014567377, now seen corresponding path program 1 times [2022-01-31 16:16:31,060 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:16:31,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129621736] [2022-01-31 16:16:31,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:31,060 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:16:31,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:31,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:16:31,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:31,135 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 16:16:31,135 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:16:31,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129621736] [2022-01-31 16:16:31,135 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129621736] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:16:31,135 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:16:31,135 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:16:31,136 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900302835] [2022-01-31 16:16:31,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:16:31,136 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:16:31,136 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:16:31,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:16:31,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:16:31,137 INFO L87 Difference]: Start difference. First operand 8499 states and 10845 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 16:16:31,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:16:31,337 INFO L93 Difference]: Finished difference Result 7585 states and 9079 transitions. [2022-01-31 16:16:31,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:16:31,337 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 16:16:31,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:16:31,343 INFO L225 Difference]: With dead ends: 7585 [2022-01-31 16:16:31,343 INFO L226 Difference]: Without dead ends: 3801 [2022-01-31 16:16:31,344 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 16:16:31,344 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 16:16:31,344 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 16:16:31,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3801 states. [2022-01-31 16:16:31,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3801 to 3611. [2022-01-31 16:16:31,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3611 states, 3606 states have (on average 1.2470881863560732) internal successors, (4497), 3606 states have internal predecessors, (4497), 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 16:16:31,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3611 states to 3611 states and 4501 transitions. [2022-01-31 16:16:31,380 INFO L78 Accepts]: Start accepts. Automaton has 3611 states and 4501 transitions. Word has length 419 [2022-01-31 16:16:31,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:16:31,381 INFO L470 AbstractCegarLoop]: Abstraction has 3611 states and 4501 transitions. [2022-01-31 16:16:31,381 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 16:16:31,381 INFO L276 IsEmpty]: Start isEmpty. Operand 3611 states and 4501 transitions. [2022-01-31 16:16:31,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 518 [2022-01-31 16:16:31,386 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:16:31,387 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 19, 19, 19, 19, 19, 19, 19, 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, 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 16:16:31,387 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-31 16:16:31,387 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:16:31,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:16:31,387 INFO L85 PathProgramCache]: Analyzing trace with hash 754491721, now seen corresponding path program 1 times [2022-01-31 16:16:31,388 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:16:31,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831758374] [2022-01-31 16:16:31,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:31,388 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:16:31,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:31,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:16:31,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:31,472 INFO L134 CoverageAnalysis]: Checked inductivity of 2898 backedges. 1648 proven. 14 refuted. 0 times theorem prover too weak. 1236 trivial. 0 not checked. [2022-01-31 16:16:31,472 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:16:31,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831758374] [2022-01-31 16:16:31,473 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831758374] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-31 16:16:31,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [710136524] [2022-01-31 16:16:31,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:31,473 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 16:16:31,473 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 16:16:31,476 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 16:16:31,501 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 16:16:31,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:31,639 INFO L263 TraceCheckSpWp]: Trace formula consists of 934 conjuncts, 3 conjunts are in the unsatisfiable core [2022-01-31 16:16:31,646 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-31 16:16:32,489 INFO L134 CoverageAnalysis]: Checked inductivity of 2898 backedges. 1075 proven. 0 refuted. 0 times theorem prover too weak. 1823 trivial. 0 not checked. [2022-01-31 16:16:32,489 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-31 16:16:32,489 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [710136524] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:16:32,489 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-01-31 16:16:32,490 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-01-31 16:16:32,490 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035721287] [2022-01-31 16:16:32,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:16:32,490 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-31 16:16:32,490 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:16:32,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-31 16:16:32,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:16:32,492 INFO L87 Difference]: Start difference. First operand 3611 states and 4501 transitions. Second operand has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 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 16:16:32,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:16:32,507 INFO L93 Difference]: Finished difference Result 3949 states and 4887 transitions. [2022-01-31 16:16:32,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-31 16:16:32,507 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 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 517 [2022-01-31 16:16:32,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:16:32,513 INFO L225 Difference]: With dead ends: 3949 [2022-01-31 16:16:32,513 INFO L226 Difference]: Without dead ends: 3949 [2022-01-31 16:16:32,513 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 522 GetRequests, 518 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 16:16:32,514 INFO L933 BasicCegarLoop]: 306 mSDtfsCounter, 56 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 462 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 16:16:32,514 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [56 Valid, 462 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-31 16:16:32,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3949 states. [2022-01-31 16:16:32,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3949 to 3536. [2022-01-31 16:16:32,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3536 states, 3531 states have (on average 1.2472387425658453) internal successors, (4404), 3531 states have internal predecessors, (4404), 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 16:16:32,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3536 states to 3536 states and 4408 transitions. [2022-01-31 16:16:32,550 INFO L78 Accepts]: Start accepts. Automaton has 3536 states and 4408 transitions. Word has length 517 [2022-01-31 16:16:32,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:16:32,551 INFO L470 AbstractCegarLoop]: Abstraction has 3536 states and 4408 transitions. [2022-01-31 16:16:32,551 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 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 16:16:32,551 INFO L276 IsEmpty]: Start isEmpty. Operand 3536 states and 4408 transitions. [2022-01-31 16:16:32,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 630 [2022-01-31 16:16:32,558 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:16:32,559 INFO L514 BasicCegarLoop]: trace histogram [22, 22, 21, 21, 21, 21, 21, 21, 21, 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, 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 16:16:32,583 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-01-31 16:16:32,775 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2022-01-31 16:16:32,775 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:16:32,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:16:32,776 INFO L85 PathProgramCache]: Analyzing trace with hash 2396054, now seen corresponding path program 1 times [2022-01-31 16:16:32,776 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:16:32,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496164040] [2022-01-31 16:16:32,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:32,776 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:16:32,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:32,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:16:32,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:32,869 INFO L134 CoverageAnalysis]: Checked inductivity of 4135 backedges. 2131 proven. 14 refuted. 0 times theorem prover too weak. 1990 trivial. 0 not checked. [2022-01-31 16:16:32,869 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:16:32,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496164040] [2022-01-31 16:16:32,870 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496164040] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-31 16:16:32,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2092113646] [2022-01-31 16:16:32,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:32,870 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 16:16:32,870 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 16:16:32,871 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 16:16:32,872 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 16:16:33,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:33,034 INFO L263 TraceCheckSpWp]: Trace formula consists of 1075 conjuncts, 3 conjunts are in the unsatisfiable core [2022-01-31 16:16:33,040 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-31 16:16:33,735 INFO L134 CoverageAnalysis]: Checked inductivity of 4135 backedges. 2131 proven. 14 refuted. 0 times theorem prover too weak. 1990 trivial. 0 not checked. [2022-01-31 16:16:33,736 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-31 16:16:34,539 INFO L134 CoverageAnalysis]: Checked inductivity of 4135 backedges. 2131 proven. 14 refuted. 0 times theorem prover too weak. 1990 trivial. 0 not checked. [2022-01-31 16:16:34,539 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2092113646] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-31 16:16:34,539 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-31 16:16:34,540 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 9 [2022-01-31 16:16:34,540 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123459423] [2022-01-31 16:16:34,540 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-31 16:16:34,541 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-31 16:16:34,541 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:16:34,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-31 16:16:34,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-01-31 16:16:34,542 INFO L87 Difference]: Start difference. First operand 3536 states and 4408 transitions. Second operand has 9 states, 9 states have (on average 37.44444444444444) internal successors, (337), 8 states have internal predecessors, (337), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:34,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:16:34,964 INFO L93 Difference]: Finished difference Result 966 states and 1139 transitions. [2022-01-31 16:16:34,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-31 16:16:34,965 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 37.44444444444444) internal successors, (337), 8 states have internal predecessors, (337), 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 629 [2022-01-31 16:16:34,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:16:34,965 INFO L225 Difference]: With dead ends: 966 [2022-01-31 16:16:34,965 INFO L226 Difference]: Without dead ends: 0 [2022-01-31 16:16:34,966 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1269 GetRequests, 1259 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 16:16:34,966 INFO L933 BasicCegarLoop]: 156 mSDtfsCounter, 358 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 779 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 358 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 828 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 779 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-31 16:16:34,966 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [358 Valid, 178 Invalid, 828 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 779 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-31 16:16:34,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-01-31 16:16:34,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-01-31 16:16:34,967 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 16:16:34,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-01-31 16:16:34,967 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 629 [2022-01-31 16:16:34,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:16:34,967 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-01-31 16:16:34,967 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 37.44444444444444) internal successors, (337), 8 states have internal predecessors, (337), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:34,968 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-01-31 16:16:34,968 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-01-31 16:16:34,970 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-31 16:16:34,994 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-01-31 16:16:35,183 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 16:16:35,186 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] [2022-01-31 16:16:35,187 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-01-31 16:16:35,189 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.01 04:16:35 BasicIcfg [2022-01-31 16:16:35,189 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-31 16:16:35,189 INFO L158 Benchmark]: Toolchain (without parser) took 18064.66ms. Allocated memory was 189.8MB in the beginning and 466.6MB in the end (delta: 276.8MB). Free memory was 135.5MB in the beginning and 331.8MB in the end (delta: -196.3MB). Peak memory consumption was 81.5MB. Max. memory is 8.0GB. [2022-01-31 16:16:35,189 INFO L158 Benchmark]: CDTParser took 0.62ms. Allocated memory is still 189.8MB. Free memory is still 152.2MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-31 16:16:35,190 INFO L158 Benchmark]: CACSL2BoogieTranslator took 295.29ms. Allocated memory was 189.8MB in the beginning and 264.2MB in the end (delta: 74.4MB). Free memory was 135.3MB in the beginning and 233.0MB in the end (delta: -97.7MB). Peak memory consumption was 11.0MB. Max. memory is 8.0GB. [2022-01-31 16:16:35,190 INFO L158 Benchmark]: Boogie Preprocessor took 44.21ms. Allocated memory is still 264.2MB. Free memory was 233.0MB in the beginning and 230.4MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-31 16:16:35,190 INFO L158 Benchmark]: RCFGBuilder took 575.48ms. Allocated memory is still 264.2MB. Free memory was 230.4MB in the beginning and 204.2MB in the end (delta: 26.2MB). Peak memory consumption was 26.2MB. Max. memory is 8.0GB. [2022-01-31 16:16:35,190 INFO L158 Benchmark]: IcfgTransformer took 32.02ms. Allocated memory is still 264.2MB. Free memory was 204.2MB in the beginning and 201.5MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-01-31 16:16:35,190 INFO L158 Benchmark]: TraceAbstraction took 17100.30ms. Allocated memory was 264.2MB in the beginning and 466.6MB in the end (delta: 202.4MB). Free memory was 201.0MB in the beginning and 331.8MB in the end (delta: -130.8MB). Peak memory consumption was 72.8MB. Max. memory is 8.0GB. [2022-01-31 16:16:35,191 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.62ms. Allocated memory is still 189.8MB. Free memory is still 152.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 295.29ms. Allocated memory was 189.8MB in the beginning and 264.2MB in the end (delta: 74.4MB). Free memory was 135.3MB in the beginning and 233.0MB in the end (delta: -97.7MB). Peak memory consumption was 11.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 44.21ms. Allocated memory is still 264.2MB. Free memory was 233.0MB in the beginning and 230.4MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 575.48ms. Allocated memory is still 264.2MB. Free memory was 230.4MB in the beginning and 204.2MB in the end (delta: 26.2MB). Peak memory consumption was 26.2MB. Max. memory is 8.0GB. * IcfgTransformer took 32.02ms. Allocated memory is still 264.2MB. Free memory was 204.2MB in the beginning and 201.5MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * TraceAbstraction took 17100.30ms. Allocated memory was 264.2MB in the beginning and 466.6MB in the end (delta: 202.4MB). Free memory was 201.0MB in the beginning and 331.8MB in the end (delta: -130.8MB). Peak memory consumption was 72.8MB. 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: 560]: 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: 17.1s, OverallIterations: 27, TraceHistogramMax: 22, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.2s, AutomataDifference: 6.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 7087 SdHoareTripleChecker+Valid, 5.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7085 mSDsluCounter, 6333 SdHoareTripleChecker+Invalid, 4.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 607 mSDsCounter, 646 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6692 IncrementalHoareTripleChecker+Invalid, 7338 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 646 mSolverCounterUnsat, 5726 mSDtfsCounter, 6692 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3823 GetRequests, 3718 SyntacticMatches, 0 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8499occurred in iteration=24, InterpolantAutomatonStates: 116, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.3s AutomataMinimizationTime, 27 MinimizatonAttempts, 6159 StatesRemovedByMinimization, 22 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 6.2s InterpolantComputationTime, 8826 NumberOfCodeBlocks, 8826 NumberOfCodeBlocksAsserted, 33 NumberOfCheckSat, 10167 ConstructedInterpolants, 0 QuantifiedInterpolants, 14378 SizeOfPredicates, 5 NumberOfNonLiveVariables, 4211 ConjunctsInSsa, 17 ConjunctsInUnsatCore, 35 InterpolantComputations, 24 PerfectInterpolantSequences, 45091/45202 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 16:16:35,219 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...