/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/s3_clnt.blast.04.i.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05ce600 [2022-02-23 19:57:23,610 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-23 19:57:23,612 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-23 19:57:23,647 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-23 19:57:23,648 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-23 19:57:23,649 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-23 19:57:23,650 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-23 19:57:23,652 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-23 19:57:23,653 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-23 19:57:23,654 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-23 19:57:23,661 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-23 19:57:23,664 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-23 19:57:23,665 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-23 19:57:23,671 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-23 19:57:23,672 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-23 19:57:23,673 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-23 19:57:23,673 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-23 19:57:23,674 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-23 19:57:23,675 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-23 19:57:23,677 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-23 19:57:23,678 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-23 19:57:23,685 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-23 19:57:23,688 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-23 19:57:23,690 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-23 19:57:23,695 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-23 19:57:23,696 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-23 19:57:23,696 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-23 19:57:23,696 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-23 19:57:23,697 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-23 19:57:23,697 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-23 19:57:23,698 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-23 19:57:23,698 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-23 19:57:23,699 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-23 19:57:23,699 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-23 19:57:23,700 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-23 19:57:23,700 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-23 19:57:23,701 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-23 19:57:23,701 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-23 19:57:23,701 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-23 19:57:23,702 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-23 19:57:23,702 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-23 19:57:23,708 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-02-23 19:57:23,718 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-23 19:57:23,718 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-23 19:57:23,719 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-23 19:57:23,720 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-23 19:57:23,720 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-23 19:57:23,720 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-23 19:57:23,720 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-23 19:57:23,720 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-23 19:57:23,720 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-23 19:57:23,720 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-23 19:57:23,721 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-23 19:57:23,721 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-23 19:57:23,721 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-23 19:57:23,721 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-23 19:57:23,721 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-23 19:57:23,721 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-23 19:57:23,721 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-23 19:57:23,722 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-23 19:57:23,722 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-23 19:57:23,722 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-23 19:57:23,722 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-23 19:57:23,723 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-23 19:57:23,723 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-02-23 19:57:23,946 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-23 19:57:23,964 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-23 19:57:23,966 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-23 19:57:23,969 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-23 19:57:23,969 INFO L275 PluginConnector]: CDTParser initialized [2022-02-23 19:57:23,971 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_clnt.blast.04.i.cil-2.c [2022-02-23 19:57:24,032 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7448d9266/1ded71ab47ed427ca11165d510ef93e2/FLAGff9b929fe [2022-02-23 19:57:24,480 INFO L306 CDTParser]: Found 1 translation units. [2022-02-23 19:57:24,481 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_clnt.blast.04.i.cil-2.c [2022-02-23 19:57:24,515 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7448d9266/1ded71ab47ed427ca11165d510ef93e2/FLAGff9b929fe [2022-02-23 19:57:24,530 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7448d9266/1ded71ab47ed427ca11165d510ef93e2 [2022-02-23 19:57:24,533 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-23 19:57:24,536 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-23 19:57:24,538 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-23 19:57:24,539 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-23 19:57:24,541 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-23 19:57:24,542 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 07:57:24" (1/1) ... [2022-02-23 19:57:24,543 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f3f6951 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:57:24, skipping insertion in model container [2022-02-23 19:57:24,543 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 07:57:24" (1/1) ... [2022-02-23 19:57:24,549 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-23 19:57:24,618 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-23 19:57:24,938 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/s3_clnt.blast.04.i.cil-2.c[65405,65418] [2022-02-23 19:57:24,945 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-23 19:57:24,956 INFO L203 MainTranslator]: Completed pre-run [2022-02-23 19:57:25,055 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/s3_clnt.blast.04.i.cil-2.c[65405,65418] [2022-02-23 19:57:25,058 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-23 19:57:25,083 INFO L208 MainTranslator]: Completed translation [2022-02-23 19:57:25,084 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:57:25 WrapperNode [2022-02-23 19:57:25,084 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-23 19:57:25,085 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-23 19:57:25,085 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-23 19:57:25,085 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-23 19:57:25,095 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:57:25" (1/1) ... [2022-02-23 19:57:25,096 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:57:25" (1/1) ... [2022-02-23 19:57:25,128 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:57:25" (1/1) ... [2022-02-23 19:57:25,129 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:57:25" (1/1) ... [2022-02-23 19:57:25,190 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:57:25" (1/1) ... [2022-02-23 19:57:25,208 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:57:25" (1/1) ... [2022-02-23 19:57:25,212 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:57:25" (1/1) ... [2022-02-23 19:57:25,217 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-23 19:57:25,218 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-23 19:57:25,218 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-23 19:57:25,218 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-23 19:57:25,219 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:57:25" (1/1) ... [2022-02-23 19:57:25,231 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-23 19:57:25,245 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-23 19:57:25,256 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-23 19:57:25,264 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-23 19:57:25,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-02-23 19:57:25,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-23 19:57:25,290 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-02-23 19:57:25,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_client_method [2022-02-23 19:57:25,290 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_client_method [2022-02-23 19:57:25,290 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-02-23 19:57:25,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_connect [2022-02-23 19:57:25,290 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-02-23 19:57:25,291 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-02-23 19:57:25,291 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-02-23 19:57:25,291 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-02-23 19:57:25,291 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-02-23 19:57:25,291 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-02-23 19:57:25,291 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-23 19:57:25,291 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-02-23 19:57:25,291 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-02-23 19:57:25,295 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-02-23 19:57:25,295 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-02-23 19:57:25,296 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-02-23 19:57:25,296 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-02-23 19:57:25,296 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_client_method [2022-02-23 19:57:25,296 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-02-23 19:57:25,296 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_connect [2022-02-23 19:57:25,296 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_client_method [2022-02-23 19:57:25,296 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-02-23 19:57:25,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-02-23 19:57:25,297 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-02-23 19:57:25,297 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-02-23 19:57:25,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-23 19:57:25,297 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-02-23 19:57:25,297 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-23 19:57:25,297 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-02-23 19:57:25,297 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-02-23 19:57:25,297 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-02-23 19:57:25,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-23 19:57:25,298 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-23 19:57:25,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-02-23 19:57:25,298 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-02-23 19:57:25,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-02-23 19:57:25,298 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-02-23 19:57:25,298 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-23 19:57:25,425 INFO L234 CfgBuilder]: Building ICFG [2022-02-23 19:57:25,426 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-23 19:57:26,565 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-02-23 19:57:26,943 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2022-02-23 19:57:26,944 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2022-02-23 19:57:26,958 INFO L275 CfgBuilder]: Performing block encoding [2022-02-23 19:57:26,968 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-23 19:57:26,968 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-02-23 19:57:26,970 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 07:57:26 BoogieIcfgContainer [2022-02-23 19:57:26,970 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-23 19:57:26,971 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-02-23 19:57:26,971 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-02-23 19:57:26,973 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-02-23 19:57:26,978 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 07:57:26" (1/1) ... [2022-02-23 19:57:27,014 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 23.02 07:57:27 BasicIcfg [2022-02-23 19:57:27,014 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-02-23 19:57:27,016 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-23 19:57:27,016 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-23 19:57:27,018 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-23 19:57:27,018 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 07:57:24" (1/4) ... [2022-02-23 19:57:27,019 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@977e947 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 07:57:27, skipping insertion in model container [2022-02-23 19:57:27,019 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:57:25" (2/4) ... [2022-02-23 19:57:27,020 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@977e947 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 07:57:27, skipping insertion in model container [2022-02-23 19:57:27,020 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 07:57:26" (3/4) ... [2022-02-23 19:57:27,020 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@977e947 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.02 07:57:27, skipping insertion in model container [2022-02-23 19:57:27,020 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 23.02 07:57:27" (4/4) ... [2022-02-23 19:57:27,021 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_clnt.blast.04.i.cil-2.cJordan [2022-02-23 19:57:27,027 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-02-23 19:57:27,028 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-23 19:57:27,075 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-23 19:57:27,082 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 [2022-02-23 19:57:27,082 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-23 19:57:27,107 INFO L276 IsEmpty]: Start isEmpty. Operand has 138 states, 130 states have (on average 1.6923076923076923) internal successors, (220), 131 states have internal predecessors, (220), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-02-23 19:57:27,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-02-23 19:57:27,116 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:57:27,116 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] [2022-02-23 19:57:27,117 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:57:27,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:57:27,121 INFO L85 PathProgramCache]: Analyzing trace with hash 878389628, now seen corresponding path program 1 times [2022-02-23 19:57:27,128 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:57:27,129 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750756801] [2022-02-23 19:57:27,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:57:27,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:57:27,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:57:27,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:57:27,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:57:27,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 19:57:27,668 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:57:27,669 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750756801] [2022-02-23 19:57:27,669 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1750756801] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:57:27,669 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 19:57:27,669 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 19:57:27,671 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121702045] [2022-02-23 19:57:27,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:57:27,674 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 19:57:27,675 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:57:27,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 19:57:27,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 19:57:27,698 INFO L87 Difference]: Start difference. First operand has 138 states, 130 states have (on average 1.6923076923076923) internal successors, (220), 131 states have internal predecessors, (220), 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 5 states, 5 states have (on average 5.2) internal successors, (26), 4 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) [2022-02-23 19:57:29,732 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 19:57:30,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:57:30,236 INFO L93 Difference]: Finished difference Result 142 states and 227 transitions. [2022-02-23 19:57:30,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 19:57:30,240 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 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 [2022-02-23 19:57:30,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:57:30,249 INFO L225 Difference]: With dead ends: 142 [2022-02-23 19:57:30,249 INFO L226 Difference]: Without dead ends: 122 [2022-02-23 19:57:30,250 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 19:57:30,252 INFO L933 BasicCegarLoop]: 213 mSDtfsCounter, 7 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 555 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-02-23 19:57:30,252 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 555 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 320 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-23 19:57:30,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2022-02-23 19:57:30,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 121. [2022-02-23 19:57:30,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 116 states have (on average 1.5) internal successors, (174), 116 states have internal predecessors, (174), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:57:30,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 178 transitions. [2022-02-23 19:57:30,293 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 178 transitions. Word has length 30 [2022-02-23 19:57:30,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:57:30,294 INFO L470 AbstractCegarLoop]: Abstraction has 121 states and 178 transitions. [2022-02-23 19:57:30,294 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 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) [2022-02-23 19:57:30,294 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 178 transitions. [2022-02-23 19:57:30,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-02-23 19:57:30,295 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:57:30,296 INFO L514 BasicCegarLoop]: trace histogram [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] [2022-02-23 19:57:30,296 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-23 19:57:30,296 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:57:30,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:57:30,297 INFO L85 PathProgramCache]: Analyzing trace with hash -189680389, now seen corresponding path program 1 times [2022-02-23 19:57:30,297 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:57:30,297 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992466843] [2022-02-23 19:57:30,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:57:30,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:57:30,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:57:30,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:57:30,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:57:30,511 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-02-23 19:57:30,511 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:57:30,512 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992466843] [2022-02-23 19:57:30,512 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992466843] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:57:30,512 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 19:57:30,512 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 19:57:30,513 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586175031] [2022-02-23 19:57:30,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:57:30,517 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 19:57:30,517 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:57:30,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 19:57:30,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 19:57:30,522 INFO L87 Difference]: Start difference. First operand 121 states and 178 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:57:32,534 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 19:57:32,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:57:32,831 INFO L93 Difference]: Finished difference Result 222 states and 326 transitions. [2022-02-23 19:57:32,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 19:57:32,832 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 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 [2022-02-23 19:57:32,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:57:32,834 INFO L225 Difference]: With dead ends: 222 [2022-02-23 19:57:32,834 INFO L226 Difference]: Without dead ends: 222 [2022-02-23 19:57:32,834 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 19:57:32,835 INFO L933 BasicCegarLoop]: 166 mSDtfsCounter, 124 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 319 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-23 19:57:32,836 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 319 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 190 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-23 19:57:32,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2022-02-23 19:57:32,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 222. [2022-02-23 19:57:32,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 217 states have (on average 1.4838709677419355) internal successors, (322), 217 states have internal predecessors, (322), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:57:32,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 326 transitions. [2022-02-23 19:57:32,850 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 326 transitions. Word has length 44 [2022-02-23 19:57:32,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:57:32,850 INFO L470 AbstractCegarLoop]: Abstraction has 222 states and 326 transitions. [2022-02-23 19:57:32,850 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:57:32,850 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 326 transitions. [2022-02-23 19:57:32,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-02-23 19:57:32,852 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:57:32,852 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 19:57:32,852 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-23 19:57:32,852 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:57:32,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:57:32,853 INFO L85 PathProgramCache]: Analyzing trace with hash 1951828473, now seen corresponding path program 1 times [2022-02-23 19:57:32,853 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:57:32,853 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060336913] [2022-02-23 19:57:32,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:57:32,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:57:32,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:57:33,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:57:33,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:57:33,057 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-02-23 19:57:33,057 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:57:33,057 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060336913] [2022-02-23 19:57:33,058 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060336913] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:57:33,058 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 19:57:33,058 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 19:57:33,058 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913700291] [2022-02-23 19:57:33,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:57:33,058 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 19:57:33,059 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:57:33,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 19:57:33,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 19:57:33,059 INFO L87 Difference]: Start difference. First operand 222 states and 326 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:57:35,075 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 19:57:35,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:57:35,547 INFO L93 Difference]: Finished difference Result 257 states and 378 transitions. [2022-02-23 19:57:35,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 19:57:35,548 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 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 59 [2022-02-23 19:57:35,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:57:35,550 INFO L225 Difference]: With dead ends: 257 [2022-02-23 19:57:35,550 INFO L226 Difference]: Without dead ends: 257 [2022-02-23 19:57:35,550 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 19:57:35,551 INFO L933 BasicCegarLoop]: 198 mSDtfsCounter, 31 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 484 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-02-23 19:57:35,551 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 484 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 359 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-23 19:57:35,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2022-02-23 19:57:35,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 240. [2022-02-23 19:57:35,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 235 states have (on average 1.4978723404255319) internal successors, (352), 235 states have internal predecessors, (352), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:57:35,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 356 transitions. [2022-02-23 19:57:35,562 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 356 transitions. Word has length 59 [2022-02-23 19:57:35,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:57:35,562 INFO L470 AbstractCegarLoop]: Abstraction has 240 states and 356 transitions. [2022-02-23 19:57:35,562 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:57:35,563 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 356 transitions. [2022-02-23 19:57:35,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-02-23 19:57:35,565 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:57:35,565 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 19:57:35,565 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-23 19:57:35,565 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:57:35,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:57:35,566 INFO L85 PathProgramCache]: Analyzing trace with hash 1231550136, now seen corresponding path program 2 times [2022-02-23 19:57:35,566 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:57:35,566 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401040818] [2022-02-23 19:57:35,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:57:35,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:57:35,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:57:35,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:57:35,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:57:35,757 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-02-23 19:57:35,758 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:57:35,758 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401040818] [2022-02-23 19:57:35,758 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401040818] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:57:35,758 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 19:57:35,758 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 19:57:35,758 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465023826] [2022-02-23 19:57:35,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:57:35,759 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 19:57:35,759 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:57:35,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 19:57:35,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 19:57:35,760 INFO L87 Difference]: Start difference. First operand 240 states and 356 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:57:37,771 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 19:57:38,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:57:38,151 INFO L93 Difference]: Finished difference Result 256 states and 376 transitions. [2022-02-23 19:57:38,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 19:57:38,155 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 73 [2022-02-23 19:57:38,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:57:38,157 INFO L225 Difference]: With dead ends: 256 [2022-02-23 19:57:38,157 INFO L226 Difference]: Without dead ends: 256 [2022-02-23 19:57:38,157 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 19:57:38,158 INFO L933 BasicCegarLoop]: 198 mSDtfsCounter, 37 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 484 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-23 19:57:38,159 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 484 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 352 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-23 19:57:38,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2022-02-23 19:57:38,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 240. [2022-02-23 19:57:38,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 235 states have (on average 1.4936170212765958) internal successors, (351), 235 states have internal predecessors, (351), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:57:38,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 355 transitions. [2022-02-23 19:57:38,175 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 355 transitions. Word has length 73 [2022-02-23 19:57:38,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:57:38,176 INFO L470 AbstractCegarLoop]: Abstraction has 240 states and 355 transitions. [2022-02-23 19:57:38,176 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:57:38,176 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 355 transitions. [2022-02-23 19:57:38,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-02-23 19:57:38,182 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:57:38,182 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 19:57:38,182 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-23 19:57:38,182 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:57:38,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:57:38,183 INFO L85 PathProgramCache]: Analyzing trace with hash 1593666200, now seen corresponding path program 1 times [2022-02-23 19:57:38,183 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:57:38,183 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008619761] [2022-02-23 19:57:38,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:57:38,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:57:38,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:57:38,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:57:38,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:57:38,421 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-02-23 19:57:38,421 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:57:38,421 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008619761] [2022-02-23 19:57:38,421 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008619761] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:57:38,421 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 19:57:38,421 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 19:57:38,422 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211883030] [2022-02-23 19:57:38,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:57:38,423 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 19:57:38,423 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:57:38,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 19:57:38,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 19:57:38,423 INFO L87 Difference]: Start difference. First operand 240 states and 355 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:57:40,433 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 19:57:40,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:57:40,894 INFO L93 Difference]: Finished difference Result 423 states and 628 transitions. [2022-02-23 19:57:40,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 19:57:40,895 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 73 [2022-02-23 19:57:40,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:57:40,897 INFO L225 Difference]: With dead ends: 423 [2022-02-23 19:57:40,897 INFO L226 Difference]: Without dead ends: 423 [2022-02-23 19:57:40,897 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 19:57:40,898 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 119 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 46 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-02-23 19:57:40,899 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 278 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 382 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-23 19:57:40,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2022-02-23 19:57:40,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 264. [2022-02-23 19:57:40,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 259 states have (on average 1.4903474903474903) internal successors, (386), 259 states have internal predecessors, (386), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:57:40,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 390 transitions. [2022-02-23 19:57:40,913 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 390 transitions. Word has length 73 [2022-02-23 19:57:40,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:57:40,914 INFO L470 AbstractCegarLoop]: Abstraction has 264 states and 390 transitions. [2022-02-23 19:57:40,914 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:57:40,914 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 390 transitions. [2022-02-23 19:57:40,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-02-23 19:57:40,926 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:57:40,926 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 19:57:40,926 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-23 19:57:40,926 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:57:40,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:57:40,927 INFO L85 PathProgramCache]: Analyzing trace with hash 209061239, now seen corresponding path program 1 times [2022-02-23 19:57:40,927 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:57:40,927 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59198343] [2022-02-23 19:57:40,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:57:40,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:57:41,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:57:41,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:57:41,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:57:41,144 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-02-23 19:57:41,144 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:57:41,144 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59198343] [2022-02-23 19:57:41,144 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59198343] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:57:41,144 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 19:57:41,145 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 19:57:41,145 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46547446] [2022-02-23 19:57:41,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:57:41,145 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 19:57:41,145 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:57:41,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 19:57:41,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 19:57:41,146 INFO L87 Difference]: Start difference. First operand 264 states and 390 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:57:42,585 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 19:57:44,608 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 19:57:46,629 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 19:57:48,651 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 19:57:49,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:57:49,090 INFO L93 Difference]: Finished difference Result 423 states and 625 transitions. [2022-02-23 19:57:49,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 19:57:49,090 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 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 [2022-02-23 19:57:49,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:57:49,092 INFO L225 Difference]: With dead ends: 423 [2022-02-23 19:57:49,092 INFO L226 Difference]: Without dead ends: 423 [2022-02-23 19:57:49,093 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 19:57:49,093 INFO L933 BasicCegarLoop]: 108 mSDtfsCounter, 117 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 395 mSolverCounterSat, 43 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 441 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 395 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2022-02-23 19:57:49,094 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 300 Invalid, 441 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 395 Invalid, 3 Unknown, 0 Unchecked, 7.9s Time] [2022-02-23 19:57:49,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2022-02-23 19:57:49,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 266. [2022-02-23 19:57:49,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 261 states have (on average 1.4827586206896552) internal successors, (387), 261 states have internal predecessors, (387), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:57:49,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 391 transitions. [2022-02-23 19:57:49,103 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 391 transitions. Word has length 74 [2022-02-23 19:57:49,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:57:49,104 INFO L470 AbstractCegarLoop]: Abstraction has 266 states and 391 transitions. [2022-02-23 19:57:49,104 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:57:49,104 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 391 transitions. [2022-02-23 19:57:49,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-02-23 19:57:49,105 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:57:49,105 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 19:57:49,105 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-02-23 19:57:49,105 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:57:49,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:57:49,105 INFO L85 PathProgramCache]: Analyzing trace with hash 281244916, now seen corresponding path program 1 times [2022-02-23 19:57:49,106 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:57:49,106 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617367187] [2022-02-23 19:57:49,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:57:49,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:57:49,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:57:49,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:57:49,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:57:49,266 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-02-23 19:57:49,266 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:57:49,266 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617367187] [2022-02-23 19:57:49,266 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617367187] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:57:49,266 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 19:57:49,266 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 19:57:49,266 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883581174] [2022-02-23 19:57:49,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:57:49,267 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 19:57:49,267 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:57:49,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 19:57:49,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 19:57:49,269 INFO L87 Difference]: Start difference. First operand 266 states and 391 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:57:51,279 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 19:57:51,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:57:51,685 INFO L93 Difference]: Finished difference Result 282 states and 411 transitions. [2022-02-23 19:57:51,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 19:57:51,686 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 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 75 [2022-02-23 19:57:51,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:57:51,687 INFO L225 Difference]: With dead ends: 282 [2022-02-23 19:57:51,688 INFO L226 Difference]: Without dead ends: 282 [2022-02-23 19:57:51,688 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 19:57:51,689 INFO L933 BasicCegarLoop]: 195 mSDtfsCounter, 31 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-23 19:57:51,689 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 478 Invalid, 358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 349 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-23 19:57:51,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2022-02-23 19:57:51,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 266. [2022-02-23 19:57:51,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 261 states have (on average 1.4789272030651341) internal successors, (386), 261 states have internal predecessors, (386), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:57:51,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 390 transitions. [2022-02-23 19:57:51,696 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 390 transitions. Word has length 75 [2022-02-23 19:57:51,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:57:51,696 INFO L470 AbstractCegarLoop]: Abstraction has 266 states and 390 transitions. [2022-02-23 19:57:51,696 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:57:51,696 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 390 transitions. [2022-02-23 19:57:51,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-02-23 19:57:51,697 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:57:51,697 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 19:57:51,698 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-02-23 19:57:51,698 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:57:51,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:57:51,698 INFO L85 PathProgramCache]: Analyzing trace with hash -1742080012, now seen corresponding path program 1 times [2022-02-23 19:57:51,698 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:57:51,698 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202624626] [2022-02-23 19:57:51,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:57:51,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:57:51,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:57:51,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:57:51,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:57:51,966 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-02-23 19:57:51,966 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:57:51,966 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202624626] [2022-02-23 19:57:51,967 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [202624626] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:57:51,967 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 19:57:51,967 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 19:57:51,967 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361084521] [2022-02-23 19:57:51,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:57:51,967 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 19:57:51,967 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:57:51,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 19:57:51,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 19:57:51,968 INFO L87 Difference]: Start difference. First operand 266 states and 390 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:57:53,979 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 19:57:54,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:57:54,436 INFO L93 Difference]: Finished difference Result 423 states and 621 transitions. [2022-02-23 19:57:54,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 19:57:54,437 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 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 76 [2022-02-23 19:57:54,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:57:54,439 INFO L225 Difference]: With dead ends: 423 [2022-02-23 19:57:54,439 INFO L226 Difference]: Without dead ends: 423 [2022-02-23 19:57:54,439 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 19:57:54,439 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 114 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 46 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-23 19:57:54,440 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 278 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 382 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-23 19:57:54,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2022-02-23 19:57:54,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 270. [2022-02-23 19:57:54,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 265 states have (on average 1.4754716981132074) internal successors, (391), 265 states have internal predecessors, (391), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:57:54,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 395 transitions. [2022-02-23 19:57:54,447 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 395 transitions. Word has length 76 [2022-02-23 19:57:54,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:57:54,447 INFO L470 AbstractCegarLoop]: Abstraction has 270 states and 395 transitions. [2022-02-23 19:57:54,447 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:57:54,447 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 395 transitions. [2022-02-23 19:57:54,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-02-23 19:57:54,448 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:57:54,448 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 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] [2022-02-23 19:57:54,448 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-02-23 19:57:54,449 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:57:54,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:57:54,449 INFO L85 PathProgramCache]: Analyzing trace with hash 580115528, now seen corresponding path program 1 times [2022-02-23 19:57:54,449 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:57:54,449 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037103108] [2022-02-23 19:57:54,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:57:54,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:57:54,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:57:54,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:57:54,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:57:54,641 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-02-23 19:57:54,641 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:57:54,641 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037103108] [2022-02-23 19:57:54,641 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037103108] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:57:54,641 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 19:57:54,641 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 19:57:54,642 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826204094] [2022-02-23 19:57:54,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:57:54,642 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 19:57:54,642 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:57:54,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 19:57:54,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 19:57:54,646 INFO L87 Difference]: Start difference. First operand 270 states and 395 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 3 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:57:56,657 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 19:57:57,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:57:57,078 INFO L93 Difference]: Finished difference Result 404 states and 591 transitions. [2022-02-23 19:57:57,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 19:57:57,078 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 3 states have internal predecessors, (61), 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 77 [2022-02-23 19:57:57,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:57:57,080 INFO L225 Difference]: With dead ends: 404 [2022-02-23 19:57:57,080 INFO L226 Difference]: Without dead ends: 404 [2022-02-23 19:57:57,080 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 19:57:57,081 INFO L933 BasicCegarLoop]: 315 mSDtfsCounter, 125 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 337 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 337 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-23 19:57:57,081 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 477 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 337 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-23 19:57:57,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2022-02-23 19:57:57,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 404. [2022-02-23 19:57:57,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 399 states have (on average 1.4711779448621554) internal successors, (587), 399 states have internal predecessors, (587), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:57:57,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 591 transitions. [2022-02-23 19:57:57,091 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 591 transitions. Word has length 77 [2022-02-23 19:57:57,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:57:57,091 INFO L470 AbstractCegarLoop]: Abstraction has 404 states and 591 transitions. [2022-02-23 19:57:57,091 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 3 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:57:57,092 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 591 transitions. [2022-02-23 19:57:57,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-02-23 19:57:57,092 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:57:57,092 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 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] [2022-02-23 19:57:57,093 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-02-23 19:57:57,093 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:57:57,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:57:57,093 INFO L85 PathProgramCache]: Analyzing trace with hash 611135335, now seen corresponding path program 1 times [2022-02-23 19:57:57,093 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:57:57,093 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983238031] [2022-02-23 19:57:57,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:57:57,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:57:57,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:57:57,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:57:57,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:57:57,247 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-02-23 19:57:57,247 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:57:57,247 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983238031] [2022-02-23 19:57:57,247 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983238031] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:57:57,248 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 19:57:57,248 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 19:57:57,248 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455046746] [2022-02-23 19:57:57,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:57:57,248 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 19:57:57,248 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:57:57,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 19:57:57,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 19:57:57,251 INFO L87 Difference]: Start difference. First operand 404 states and 591 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 3 states have internal predecessors, (71), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:57:59,261 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 19:57:59,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:57:59,529 INFO L93 Difference]: Finished difference Result 428 states and 623 transitions. [2022-02-23 19:57:59,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 19:57:59,529 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 3 states have internal predecessors, (71), 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 77 [2022-02-23 19:57:59,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:57:59,531 INFO L225 Difference]: With dead ends: 428 [2022-02-23 19:57:59,531 INFO L226 Difference]: Without dead ends: 428 [2022-02-23 19:57:59,531 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 19:57:59,532 INFO L933 BasicCegarLoop]: 197 mSDtfsCounter, 15 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-23 19:57:59,532 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 359 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 213 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-23 19:57:59,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2022-02-23 19:57:59,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 428. [2022-02-23 19:57:59,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 428 states, 423 states have (on average 1.4633569739952719) internal successors, (619), 423 states have internal predecessors, (619), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:57:59,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 623 transitions. [2022-02-23 19:57:59,540 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 623 transitions. Word has length 77 [2022-02-23 19:57:59,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:57:59,541 INFO L470 AbstractCegarLoop]: Abstraction has 428 states and 623 transitions. [2022-02-23 19:57:59,541 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 3 states have internal predecessors, (71), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:57:59,541 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 623 transitions. [2022-02-23 19:57:59,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-02-23 19:57:59,542 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:57:59,542 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1] [2022-02-23 19:57:59,542 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-02-23 19:57:59,542 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:57:59,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:57:59,543 INFO L85 PathProgramCache]: Analyzing trace with hash -522779701, now seen corresponding path program 1 times [2022-02-23 19:57:59,543 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:57:59,543 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139676747] [2022-02-23 19:57:59,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:57:59,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:57:59,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:57:59,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:57:59,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:57:59,748 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-02-23 19:57:59,748 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:57:59,748 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139676747] [2022-02-23 19:57:59,748 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139676747] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:57:59,749 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 19:57:59,749 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 19:57:59,749 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452882867] [2022-02-23 19:57:59,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:57:59,749 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 19:57:59,749 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:57:59,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 19:57:59,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 19:57:59,750 INFO L87 Difference]: Start difference. First operand 428 states and 623 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 3 states have internal predecessors, (69), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:58:01,767 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 19:58:02,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:58:02,174 INFO L93 Difference]: Finished difference Result 562 states and 819 transitions. [2022-02-23 19:58:02,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 19:58:02,175 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 3 states have internal predecessors, (69), 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 97 [2022-02-23 19:58:02,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:58:02,181 INFO L225 Difference]: With dead ends: 562 [2022-02-23 19:58:02,181 INFO L226 Difference]: Without dead ends: 562 [2022-02-23 19:58:02,181 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 19:58:02,183 INFO L933 BasicCegarLoop]: 314 mSDtfsCounter, 126 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 476 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-23 19:58:02,183 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 476 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 338 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-23 19:58:02,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 562 states. [2022-02-23 19:58:02,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 562 to 562. [2022-02-23 19:58:02,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 562 states, 557 states have (on average 1.4631956912028725) internal successors, (815), 557 states have internal predecessors, (815), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:58:02,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 819 transitions. [2022-02-23 19:58:02,193 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 819 transitions. Word has length 97 [2022-02-23 19:58:02,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:58:02,194 INFO L470 AbstractCegarLoop]: Abstraction has 562 states and 819 transitions. [2022-02-23 19:58:02,194 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 3 states have internal predecessors, (69), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:58:02,194 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 819 transitions. [2022-02-23 19:58:02,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-02-23 19:58:02,195 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:58:02,195 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 19:58:02,196 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-02-23 19:58:02,196 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:58:02,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:58:02,196 INFO L85 PathProgramCache]: Analyzing trace with hash -1194080795, now seen corresponding path program 1 times [2022-02-23 19:58:02,196 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:58:02,196 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793300298] [2022-02-23 19:58:02,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:58:02,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:58:02,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:58:02,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:58:02,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:58:02,372 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-02-23 19:58:02,373 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:58:02,373 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793300298] [2022-02-23 19:58:02,373 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [793300298] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:58:02,373 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 19:58:02,373 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 19:58:02,373 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176640292] [2022-02-23 19:58:02,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:58:02,373 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 19:58:02,374 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:58:02,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 19:58:02,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 19:58:02,374 INFO L87 Difference]: Start difference. First operand 562 states and 819 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:58:04,384 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 19:58:04,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:58:04,784 INFO L93 Difference]: Finished difference Result 697 states and 1016 transitions. [2022-02-23 19:58:04,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 19:58:04,785 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 118 [2022-02-23 19:58:04,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:58:04,787 INFO L225 Difference]: With dead ends: 697 [2022-02-23 19:58:04,788 INFO L226 Difference]: Without dead ends: 697 [2022-02-23 19:58:04,788 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 19:58:04,788 INFO L933 BasicCegarLoop]: 315 mSDtfsCounter, 127 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-23 19:58:04,788 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [127 Valid, 477 Invalid, 347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 339 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-23 19:58:04,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 697 states. [2022-02-23 19:58:04,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 697 to 697. [2022-02-23 19:58:04,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 697 states, 692 states have (on average 1.4624277456647399) internal successors, (1012), 692 states have internal predecessors, (1012), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:58:04,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 697 states to 697 states and 1016 transitions. [2022-02-23 19:58:04,801 INFO L78 Accepts]: Start accepts. Automaton has 697 states and 1016 transitions. Word has length 118 [2022-02-23 19:58:04,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:58:04,801 INFO L470 AbstractCegarLoop]: Abstraction has 697 states and 1016 transitions. [2022-02-23 19:58:04,801 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:58:04,802 INFO L276 IsEmpty]: Start isEmpty. Operand 697 states and 1016 transitions. [2022-02-23 19:58:04,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-02-23 19:58:04,803 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:58:04,803 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 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] [2022-02-23 19:58:04,804 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-02-23 19:58:04,804 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:58:04,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:58:04,804 INFO L85 PathProgramCache]: Analyzing trace with hash 1203970458, now seen corresponding path program 1 times [2022-02-23 19:58:04,804 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:58:04,804 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56491079] [2022-02-23 19:58:04,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:58:04,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:58:04,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:58:05,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:58:05,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:58:05,040 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 153 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2022-02-23 19:58:05,040 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:58:05,041 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56491079] [2022-02-23 19:58:05,041 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56491079] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:58:05,041 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 19:58:05,041 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 19:58:05,041 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578168652] [2022-02-23 19:58:05,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:58:05,041 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 19:58:05,042 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:58:05,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 19:58:05,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 19:58:05,042 INFO L87 Difference]: Start difference. First operand 697 states and 1016 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:58:07,056 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 19:58:07,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:58:07,437 INFO L93 Difference]: Finished difference Result 1155 states and 1679 transitions. [2022-02-23 19:58:07,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 19:58:07,437 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 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 139 [2022-02-23 19:58:07,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:58:07,441 INFO L225 Difference]: With dead ends: 1155 [2022-02-23 19:58:07,442 INFO L226 Difference]: Without dead ends: 1155 [2022-02-23 19:58:07,442 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 19:58:07,442 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 109 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 43 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 280 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-23 19:58:07,443 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 280 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 385 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-23 19:58:07,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1155 states. [2022-02-23 19:58:07,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1155 to 802. [2022-02-23 19:58:07,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 802 states, 797 states have (on average 1.4705144291091594) internal successors, (1172), 797 states have internal predecessors, (1172), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:58:07,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 802 states to 802 states and 1176 transitions. [2022-02-23 19:58:07,459 INFO L78 Accepts]: Start accepts. Automaton has 802 states and 1176 transitions. Word has length 139 [2022-02-23 19:58:07,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:58:07,460 INFO L470 AbstractCegarLoop]: Abstraction has 802 states and 1176 transitions. [2022-02-23 19:58:07,460 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:58:07,460 INFO L276 IsEmpty]: Start isEmpty. Operand 802 states and 1176 transitions. [2022-02-23 19:58:07,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-02-23 19:58:07,462 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:58:07,462 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 19:58:07,462 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-02-23 19:58:07,462 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:58:07,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:58:07,462 INFO L85 PathProgramCache]: Analyzing trace with hash -1297688107, now seen corresponding path program 1 times [2022-02-23 19:58:07,463 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:58:07,463 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50091181] [2022-02-23 19:58:07,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:58:07,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:58:07,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:58:07,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:58:07,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:58:07,645 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 138 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-02-23 19:58:07,645 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:58:07,645 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50091181] [2022-02-23 19:58:07,645 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50091181] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:58:07,646 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 19:58:07,646 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 19:58:07,646 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848518801] [2022-02-23 19:58:07,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:58:07,646 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 19:58:07,646 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:58:07,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 19:58:07,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 19:58:07,647 INFO L87 Difference]: Start difference. First operand 802 states and 1176 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:58:09,658 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 19:58:10,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:58:10,156 INFO L93 Difference]: Finished difference Result 1144 states and 1673 transitions. [2022-02-23 19:58:10,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 19:58:10,156 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 140 [2022-02-23 19:58:10,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:58:10,160 INFO L225 Difference]: With dead ends: 1144 [2022-02-23 19:58:10,160 INFO L226 Difference]: Without dead ends: 1144 [2022-02-23 19:58:10,160 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 19:58:10,161 INFO L933 BasicCegarLoop]: 235 mSDtfsCounter, 88 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 532 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 559 SdHoareTripleChecker+Invalid, 543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 532 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-02-23 19:58:10,161 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [88 Valid, 559 Invalid, 543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 532 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-23 19:58:10,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1144 states. [2022-02-23 19:58:10,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1144 to 886. [2022-02-23 19:58:10,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 886 states, 881 states have (on average 1.4755959137343928) internal successors, (1300), 881 states have internal predecessors, (1300), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:58:10,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 886 states to 886 states and 1304 transitions. [2022-02-23 19:58:10,177 INFO L78 Accepts]: Start accepts. Automaton has 886 states and 1304 transitions. Word has length 140 [2022-02-23 19:58:10,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:58:10,177 INFO L470 AbstractCegarLoop]: Abstraction has 886 states and 1304 transitions. [2022-02-23 19:58:10,177 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:58:10,177 INFO L276 IsEmpty]: Start isEmpty. Operand 886 states and 1304 transitions. [2022-02-23 19:58:10,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-02-23 19:58:10,179 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:58:10,179 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 19:58:10,179 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-02-23 19:58:10,180 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:58:10,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:58:10,180 INFO L85 PathProgramCache]: Analyzing trace with hash -1865463148, now seen corresponding path program 2 times [2022-02-23 19:58:10,180 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:58:10,180 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474976593] [2022-02-23 19:58:10,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:58:10,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:58:10,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:58:10,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:58:10,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:58:10,420 INFO L134 CoverageAnalysis]: Checked inductivity of 271 backedges. 169 proven. 0 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2022-02-23 19:58:10,421 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:58:10,421 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474976593] [2022-02-23 19:58:10,421 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474976593] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:58:10,421 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 19:58:10,421 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 19:58:10,421 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878581926] [2022-02-23 19:58:10,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:58:10,422 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 19:58:10,422 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:58:10,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 19:58:10,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 19:58:10,423 INFO L87 Difference]: Start difference. First operand 886 states and 1304 transitions. Second operand has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:58:12,433 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 19:58:12,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:58:12,924 INFO L93 Difference]: Finished difference Result 1140 states and 1665 transitions. [2022-02-23 19:58:12,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 19:58:12,924 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 154 [2022-02-23 19:58:12,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:58:12,928 INFO L225 Difference]: With dead ends: 1140 [2022-02-23 19:58:12,929 INFO L226 Difference]: Without dead ends: 1140 [2022-02-23 19:58:12,929 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 19:58:12,929 INFO L933 BasicCegarLoop]: 234 mSDtfsCounter, 97 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 527 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 527 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-02-23 19:58:12,929 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 557 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 527 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-23 19:58:12,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1140 states. [2022-02-23 19:58:12,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1140 to 886. [2022-02-23 19:58:12,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 886 states, 881 states have (on average 1.47105561861521) internal successors, (1296), 881 states have internal predecessors, (1296), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:58:12,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 886 states to 886 states and 1300 transitions. [2022-02-23 19:58:12,947 INFO L78 Accepts]: Start accepts. Automaton has 886 states and 1300 transitions. Word has length 154 [2022-02-23 19:58:12,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:58:12,947 INFO L470 AbstractCegarLoop]: Abstraction has 886 states and 1300 transitions. [2022-02-23 19:58:12,947 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:58:12,947 INFO L276 IsEmpty]: Start isEmpty. Operand 886 states and 1300 transitions. [2022-02-23 19:58:12,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-02-23 19:58:12,950 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:58:12,950 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 19:58:12,950 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-02-23 19:58:12,950 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:58:12,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:58:12,950 INFO L85 PathProgramCache]: Analyzing trace with hash 2004716688, now seen corresponding path program 1 times [2022-02-23 19:58:12,950 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:58:12,951 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805990316] [2022-02-23 19:58:12,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:58:12,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:58:13,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:58:13,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:58:13,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:58:13,140 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 186 proven. 0 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2022-02-23 19:58:13,140 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:58:13,140 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805990316] [2022-02-23 19:58:13,142 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805990316] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:58:13,142 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 19:58:13,142 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 19:58:13,142 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184757399] [2022-02-23 19:58:13,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:58:13,142 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 19:58:13,142 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:58:13,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 19:58:13,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 19:58:13,143 INFO L87 Difference]: Start difference. First operand 886 states and 1300 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:58:15,153 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 19:58:15,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:58:15,528 INFO L93 Difference]: Finished difference Result 1264 states and 1839 transitions. [2022-02-23 19:58:15,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 19:58:15,528 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 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 156 [2022-02-23 19:58:15,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:58:15,533 INFO L225 Difference]: With dead ends: 1264 [2022-02-23 19:58:15,533 INFO L226 Difference]: Without dead ends: 1264 [2022-02-23 19:58:15,533 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 19:58:15,534 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 114 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 46 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-23 19:58:15,534 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 278 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 382 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-23 19:58:15,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1264 states. [2022-02-23 19:58:15,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1264 to 886. [2022-02-23 19:58:15,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 886 states, 881 states have (on average 1.4551645856980704) internal successors, (1282), 881 states have internal predecessors, (1282), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:58:15,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 886 states to 886 states and 1286 transitions. [2022-02-23 19:58:15,551 INFO L78 Accepts]: Start accepts. Automaton has 886 states and 1286 transitions. Word has length 156 [2022-02-23 19:58:15,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:58:15,551 INFO L470 AbstractCegarLoop]: Abstraction has 886 states and 1286 transitions. [2022-02-23 19:58:15,551 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:58:15,551 INFO L276 IsEmpty]: Start isEmpty. Operand 886 states and 1286 transitions. [2022-02-23 19:58:15,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-02-23 19:58:15,553 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:58:15,553 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 4, 4, 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] [2022-02-23 19:58:15,553 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-02-23 19:58:15,554 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:58:15,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:58:15,554 INFO L85 PathProgramCache]: Analyzing trace with hash 1111935820, now seen corresponding path program 1 times [2022-02-23 19:58:15,554 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:58:15,554 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473151889] [2022-02-23 19:58:15,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:58:15,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:58:15,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:58:15,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:58:15,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:58:15,766 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 205 proven. 0 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2022-02-23 19:58:15,766 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:58:15,766 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473151889] [2022-02-23 19:58:15,766 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473151889] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:58:15,767 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 19:58:15,767 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 19:58:15,767 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774689686] [2022-02-23 19:58:15,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:58:15,767 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 19:58:15,767 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:58:15,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 19:58:15,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 19:58:15,768 INFO L87 Difference]: Start difference. First operand 886 states and 1286 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:58:17,777 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 19:58:18,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:58:18,203 INFO L93 Difference]: Finished difference Result 1104 states and 1603 transitions. [2022-02-23 19:58:18,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 19:58:18,204 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 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 157 [2022-02-23 19:58:18,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:58:18,208 INFO L225 Difference]: With dead ends: 1104 [2022-02-23 19:58:18,208 INFO L226 Difference]: Without dead ends: 1104 [2022-02-23 19:58:18,208 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 19:58:18,208 INFO L933 BasicCegarLoop]: 226 mSDtfsCounter, 81 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 503 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 541 SdHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 503 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-23 19:58:18,209 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [81 Valid, 541 Invalid, 511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 503 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-23 19:58:18,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1104 states. [2022-02-23 19:58:18,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1104 to 886. [2022-02-23 19:58:18,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 886 states, 881 states have (on average 1.4506242905788875) internal successors, (1278), 881 states have internal predecessors, (1278), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:58:18,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 886 states to 886 states and 1282 transitions. [2022-02-23 19:58:18,224 INFO L78 Accepts]: Start accepts. Automaton has 886 states and 1282 transitions. Word has length 157 [2022-02-23 19:58:18,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:58:18,224 INFO L470 AbstractCegarLoop]: Abstraction has 886 states and 1282 transitions. [2022-02-23 19:58:18,224 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:58:18,224 INFO L276 IsEmpty]: Start isEmpty. Operand 886 states and 1282 transitions. [2022-02-23 19:58:18,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-02-23 19:58:18,226 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:58:18,226 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 19:58:18,226 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-02-23 19:58:18,226 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:58:18,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:58:18,227 INFO L85 PathProgramCache]: Analyzing trace with hash -1029170936, now seen corresponding path program 1 times [2022-02-23 19:58:18,227 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:58:18,227 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434000308] [2022-02-23 19:58:18,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:58:18,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:58:18,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:58:18,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:58:18,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:58:18,403 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 209 proven. 0 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2022-02-23 19:58:18,404 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:58:18,404 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434000308] [2022-02-23 19:58:18,404 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434000308] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:58:18,404 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 19:58:18,404 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 19:58:18,404 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434796887] [2022-02-23 19:58:18,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:58:18,404 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 19:58:18,404 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:58:18,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 19:58:18,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 19:58:18,405 INFO L87 Difference]: Start difference. First operand 886 states and 1282 transitions. Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:58:20,416 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 19:58:20,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:58:20,764 INFO L93 Difference]: Finished difference Result 1264 states and 1821 transitions. [2022-02-23 19:58:20,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 19:58:20,765 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 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 158 [2022-02-23 19:58:20,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:58:20,769 INFO L225 Difference]: With dead ends: 1264 [2022-02-23 19:58:20,769 INFO L226 Difference]: Without dead ends: 1264 [2022-02-23 19:58:20,769 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 19:58:20,770 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 108 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 46 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-23 19:58:20,770 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 278 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 382 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-23 19:58:20,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1264 states. [2022-02-23 19:58:20,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1264 to 906. [2022-02-23 19:58:20,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 906 states, 901 states have (on average 1.4472807991120977) internal successors, (1304), 901 states have internal predecessors, (1304), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:58:20,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 906 states to 906 states and 1308 transitions. [2022-02-23 19:58:20,787 INFO L78 Accepts]: Start accepts. Automaton has 906 states and 1308 transitions. Word has length 158 [2022-02-23 19:58:20,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:58:20,787 INFO L470 AbstractCegarLoop]: Abstraction has 906 states and 1308 transitions. [2022-02-23 19:58:20,787 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:58:20,788 INFO L276 IsEmpty]: Start isEmpty. Operand 906 states and 1308 transitions. [2022-02-23 19:58:20,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2022-02-23 19:58:20,789 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:58:20,790 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 19:58:20,790 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-02-23 19:58:20,790 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:58:20,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:58:20,790 INFO L85 PathProgramCache]: Analyzing trace with hash 1165344018, now seen corresponding path program 1 times [2022-02-23 19:58:20,790 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:58:20,790 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028653682] [2022-02-23 19:58:20,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:58:20,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:58:20,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:58:21,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:58:21,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:58:21,052 INFO L134 CoverageAnalysis]: Checked inductivity of 320 backedges. 94 proven. 3 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2022-02-23 19:58:21,052 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:58:21,053 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028653682] [2022-02-23 19:58:21,053 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028653682] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-23 19:58:21,053 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1060817663] [2022-02-23 19:58:21,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:58:21,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-23 19:58:21,053 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-23 19:58:21,056 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) [2022-02-23 19:58:21,083 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-02-23 19:58:21,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:58:21,824 INFO L263 TraceCheckSpWp]: Trace formula consists of 1477 conjuncts, 13 conjunts are in the unsatisfiable core [2022-02-23 19:58:21,835 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-23 19:58:21,987 INFO L356 Elim1Store]: treesize reduction 54, result has 44.3 percent of original size [2022-02-23 19:58:21,988 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 68 treesize of output 143 [2022-02-23 19:58:21,994 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 123 treesize of output 63 [2022-02-23 19:58:22,001 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2022-02-23 19:58:22,011 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9