/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.02.i.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-6c470ae [2022-02-15 00:40:59,797 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-15 00:40:59,798 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-15 00:40:59,849 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-15 00:40:59,849 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-15 00:40:59,853 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-15 00:40:59,855 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-15 00:40:59,859 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-15 00:40:59,859 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-15 00:40:59,860 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-15 00:40:59,861 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-15 00:40:59,861 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-15 00:40:59,861 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-15 00:40:59,862 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-15 00:40:59,863 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-15 00:40:59,863 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-15 00:40:59,864 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-15 00:40:59,864 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-15 00:40:59,865 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-15 00:40:59,866 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-15 00:40:59,867 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-15 00:40:59,869 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-15 00:40:59,870 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-15 00:40:59,871 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-15 00:40:59,872 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-15 00:40:59,873 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-15 00:40:59,873 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-15 00:40:59,873 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-15 00:40:59,874 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-15 00:40:59,874 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-15 00:40:59,875 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-15 00:40:59,875 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-15 00:40:59,876 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-15 00:40:59,876 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-15 00:40:59,877 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-15 00:40:59,877 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-15 00:40:59,878 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-15 00:40:59,878 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-15 00:40:59,878 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-15 00:40:59,879 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-15 00:40:59,879 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-15 00:40:59,887 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-02-15 00:40:59,893 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-15 00:40:59,893 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-15 00:40:59,894 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-15 00:40:59,894 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-15 00:40:59,894 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-15 00:40:59,894 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-15 00:40:59,894 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-15 00:40:59,895 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-15 00:40:59,895 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-15 00:40:59,895 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-15 00:40:59,895 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-15 00:40:59,895 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-15 00:40:59,895 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-15 00:40:59,895 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-15 00:40:59,896 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-15 00:40:59,896 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-15 00:40:59,896 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-15 00:40:59,896 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-15 00:40:59,896 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-15 00:40:59,896 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-15 00:40:59,896 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-15 00:40:59,897 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-15 00:40:59,897 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-02-15 00:41:00,095 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-15 00:41:00,113 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-15 00:41:00,115 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-15 00:41:00,116 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-15 00:41:00,116 INFO L275 PluginConnector]: CDTParser initialized [2022-02-15 00:41:00,117 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_clnt.blast.02.i.cil-2.c [2022-02-15 00:41:00,162 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/979ea81a2/fea5c44b436e467ba2f48cd1b182188d/FLAGd1d3028a4 [2022-02-15 00:41:00,561 INFO L306 CDTParser]: Found 1 translation units. [2022-02-15 00:41:00,562 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_clnt.blast.02.i.cil-2.c [2022-02-15 00:41:00,578 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/979ea81a2/fea5c44b436e467ba2f48cd1b182188d/FLAGd1d3028a4 [2022-02-15 00:41:00,929 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/979ea81a2/fea5c44b436e467ba2f48cd1b182188d [2022-02-15 00:41:00,931 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-15 00:41:00,932 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-15 00:41:00,936 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-15 00:41:00,936 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-15 00:41:00,938 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-15 00:41:00,939 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 12:41:00" (1/1) ... [2022-02-15 00:41:00,940 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6dbd4ce5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:41:00, skipping insertion in model container [2022-02-15 00:41:00,940 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 12:41:00" (1/1) ... [2022-02-15 00:41:00,944 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-15 00:41:00,997 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-15 00:41:01,295 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.02.i.cil-2.c[65398,65411] [2022-02-15 00:41:01,300 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-15 00:41:01,309 INFO L203 MainTranslator]: Completed pre-run [2022-02-15 00:41:01,378 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.02.i.cil-2.c[65398,65411] [2022-02-15 00:41:01,380 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-15 00:41:01,391 INFO L208 MainTranslator]: Completed translation [2022-02-15 00:41:01,392 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:41:01 WrapperNode [2022-02-15 00:41:01,392 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-15 00:41:01,393 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-15 00:41:01,393 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-15 00:41:01,393 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-15 00:41:01,401 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:41:01" (1/1) ... [2022-02-15 00:41:01,401 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:41:01" (1/1) ... [2022-02-15 00:41:01,414 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:41:01" (1/1) ... [2022-02-15 00:41:01,414 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:41:01" (1/1) ... [2022-02-15 00:41:01,447 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:41:01" (1/1) ... [2022-02-15 00:41:01,452 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:41:01" (1/1) ... [2022-02-15 00:41:01,454 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:41:01" (1/1) ... [2022-02-15 00:41:01,458 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-15 00:41:01,459 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-15 00:41:01,459 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-15 00:41:01,459 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-15 00:41:01,460 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:41:01" (1/1) ... [2022-02-15 00:41:01,465 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-15 00:41:01,471 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-15 00:41:01,481 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-15 00:41:01,496 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-15 00:41:01,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-02-15 00:41:01,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-15 00:41:01,510 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-02-15 00:41:01,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_client_method [2022-02-15 00:41:01,510 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_client_method [2022-02-15 00:41:01,510 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-02-15 00:41:01,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_connect [2022-02-15 00:41:01,510 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-02-15 00:41:01,510 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-02-15 00:41:01,511 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-02-15 00:41:01,511 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-02-15 00:41:01,511 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-02-15 00:41:01,511 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-02-15 00:41:01,511 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-15 00:41:01,511 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-02-15 00:41:01,511 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-02-15 00:41:01,511 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-02-15 00:41:01,511 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-02-15 00:41:01,511 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-02-15 00:41:01,511 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-02-15 00:41:01,512 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_client_method [2022-02-15 00:41:01,512 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-02-15 00:41:01,512 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_connect [2022-02-15 00:41:01,512 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_client_method [2022-02-15 00:41:01,512 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-02-15 00:41:01,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-02-15 00:41:01,512 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-02-15 00:41:01,512 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-02-15 00:41:01,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-15 00:41:01,512 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-02-15 00:41:01,512 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-15 00:41:01,512 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-02-15 00:41:01,513 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-02-15 00:41:01,513 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-02-15 00:41:01,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-15 00:41:01,513 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-15 00:41:01,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-02-15 00:41:01,513 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-02-15 00:41:01,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-02-15 00:41:01,513 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-02-15 00:41:01,513 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-15 00:41:01,681 INFO L234 CfgBuilder]: Building ICFG [2022-02-15 00:41:01,683 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-15 00:41:02,859 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-02-15 00:41:03,235 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2022-02-15 00:41:03,235 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2022-02-15 00:41:03,244 INFO L275 CfgBuilder]: Performing block encoding [2022-02-15 00:41:03,249 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-15 00:41:03,249 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-02-15 00:41:03,250 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 12:41:03 BoogieIcfgContainer [2022-02-15 00:41:03,250 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-15 00:41:03,251 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-02-15 00:41:03,251 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-02-15 00:41:03,252 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-02-15 00:41:03,254 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 12:41:03" (1/1) ... [2022-02-15 00:41:03,295 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 15.02 12:41:03 BasicIcfg [2022-02-15 00:41:03,296 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-02-15 00:41:03,296 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-15 00:41:03,297 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-15 00:41:03,299 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-15 00:41:03,301 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.02 12:41:00" (1/4) ... [2022-02-15 00:41:03,301 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bee93c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 12:41:03, skipping insertion in model container [2022-02-15 00:41:03,301 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:41:01" (2/4) ... [2022-02-15 00:41:03,301 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bee93c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 12:41:03, skipping insertion in model container [2022-02-15 00:41:03,301 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 12:41:03" (3/4) ... [2022-02-15 00:41:03,303 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bee93c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.02 12:41:03, skipping insertion in model container [2022-02-15 00:41:03,303 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 15.02 12:41:03" (4/4) ... [2022-02-15 00:41:03,304 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_clnt.blast.02.i.cil-2.cJordan [2022-02-15 00:41:03,307 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-02-15 00:41:03,307 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-15 00:41:03,334 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-15 00:41:03,338 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 [2022-02-15 00:41:03,338 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-15 00:41:03,348 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) [2022-02-15 00:41:03,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-02-15 00:41:03,354 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:41:03,354 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] [2022-02-15 00:41:03,354 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:41:03,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:41:03,361 INFO L85 PathProgramCache]: Analyzing trace with hash -1711753218, now seen corresponding path program 1 times [2022-02-15 00:41:03,367 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:41:03,367 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009297714] [2022-02-15 00:41:03,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:41:03,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:41:03,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:41:03,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:41:03,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:41:03,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 00:41:03,873 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:41:03,873 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009297714] [2022-02-15 00:41:03,873 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009297714] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:41:03,873 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:41:03,873 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:41:03,881 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963151272] [2022-02-15 00:41:03,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:41:03,884 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:41:03,884 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:41:03,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:41:03,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:41:03,927 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) [2022-02-15 00:41:05,961 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 [] [2022-02-15 00:41:06,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:41:06,408 INFO L93 Difference]: Finished difference Result 142 states and 227 transitions. [2022-02-15 00:41:06,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:41:06,410 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 [2022-02-15 00:41:06,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:41:06,416 INFO L225 Difference]: With dead ends: 142 [2022-02-15 00:41:06,416 INFO L226 Difference]: Without dead ends: 122 [2022-02-15 00:41:06,417 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 [2022-02-15 00:41:06,419 INFO L933 BasicCegarLoop]: 213 mSDtfsCounter, 7 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s 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, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 00:41:06,419 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 555 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 320 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 00:41:06,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2022-02-15 00:41:06,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 121. [2022-02-15 00:41:06,444 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) [2022-02-15 00:41:06,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 178 transitions. [2022-02-15 00:41:06,446 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 178 transitions. Word has length 30 [2022-02-15 00:41:06,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:41:06,446 INFO L470 AbstractCegarLoop]: Abstraction has 121 states and 178 transitions. [2022-02-15 00:41:06,446 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) [2022-02-15 00:41:06,446 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 178 transitions. [2022-02-15 00:41:06,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-02-15 00:41:06,450 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:41:06,450 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] [2022-02-15 00:41:06,450 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-15 00:41:06,450 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:41:06,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:41:06,451 INFO L85 PathProgramCache]: Analyzing trace with hash 1339052155, now seen corresponding path program 1 times [2022-02-15 00:41:06,451 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:41:06,451 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804029172] [2022-02-15 00:41:06,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:41:06,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:41:06,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:41:06,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:41:06,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:41:06,682 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-02-15 00:41:06,682 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:41:06,683 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804029172] [2022-02-15 00:41:06,683 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1804029172] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:41:06,683 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:41:06,683 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 00:41:06,684 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602165238] [2022-02-15 00:41:06,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:41:06,687 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 00:41:06,687 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:41:06,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 00:41:06,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 00:41:06,691 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) [2022-02-15 00:41:08,712 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 [] [2022-02-15 00:41:08,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:41:08,971 INFO L93 Difference]: Finished difference Result 221 states and 325 transitions. [2022-02-15 00:41:08,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 00:41:08,971 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 [2022-02-15 00:41:08,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:41:08,973 INFO L225 Difference]: With dead ends: 221 [2022-02-15 00:41:08,973 INFO L226 Difference]: Without dead ends: 221 [2022-02-15 00:41:08,973 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 [2022-02-15 00:41:08,974 INFO L933 BasicCegarLoop]: 167 mSDtfsCounter, 123 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-15 00:41:08,974 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 320 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 189 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-15 00:41:08,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2022-02-15 00:41:08,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 221. [2022-02-15 00:41:08,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 216 states have (on average 1.4861111111111112) internal successors, (321), 216 states have internal predecessors, (321), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:41:08,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 325 transitions. [2022-02-15 00:41:08,987 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 325 transitions. Word has length 44 [2022-02-15 00:41:08,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:41:08,987 INFO L470 AbstractCegarLoop]: Abstraction has 221 states and 325 transitions. [2022-02-15 00:41:08,987 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) [2022-02-15 00:41:08,987 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 325 transitions. [2022-02-15 00:41:08,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-02-15 00:41:08,989 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:41:08,989 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] [2022-02-15 00:41:08,989 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-15 00:41:08,989 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:41:08,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:41:08,990 INFO L85 PathProgramCache]: Analyzing trace with hash 1096281917, now seen corresponding path program 1 times [2022-02-15 00:41:08,990 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:41:08,990 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424519679] [2022-02-15 00:41:08,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:41:08,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:41:09,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:41:09,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:41:09,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:41:09,211 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-02-15 00:41:09,211 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:41:09,212 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424519679] [2022-02-15 00:41:09,212 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424519679] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:41:09,212 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:41:09,212 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:41:09,212 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824037176] [2022-02-15 00:41:09,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:41:09,212 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:41:09,212 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:41:09,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:41:09,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:41:09,213 INFO L87 Difference]: Start difference. First operand 221 states and 325 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) [2022-02-15 00:41:11,231 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 [] [2022-02-15 00:41:11,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:41:11,630 INFO L93 Difference]: Finished difference Result 403 states and 598 transitions. [2022-02-15 00:41:11,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:41:11,630 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 [2022-02-15 00:41:11,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:41:11,633 INFO L225 Difference]: With dead ends: 403 [2022-02-15 00:41:11,633 INFO L226 Difference]: Without dead ends: 403 [2022-02-15 00:41:11,633 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 [2022-02-15 00:41:11,634 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 106 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 44 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 279 SdHoareTripleChecker+Invalid, 428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 00:41:11,634 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 279 Invalid, 428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 383 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 00:41:11,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2022-02-15 00:41:11,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 269. [2022-02-15 00:41:11,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 264 states have (on average 1.5340909090909092) internal successors, (405), 264 states have internal predecessors, (405), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:41:11,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 409 transitions. [2022-02-15 00:41:11,652 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 409 transitions. Word has length 59 [2022-02-15 00:41:11,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:41:11,652 INFO L470 AbstractCegarLoop]: Abstraction has 269 states and 409 transitions. [2022-02-15 00:41:11,652 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) [2022-02-15 00:41:11,653 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 409 transitions. [2022-02-15 00:41:11,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-02-15 00:41:11,654 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:41:11,654 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, 1] [2022-02-15 00:41:11,654 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-15 00:41:11,654 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:41:11,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:41:11,655 INFO L85 PathProgramCache]: Analyzing trace with hash -374049832, now seen corresponding path program 1 times [2022-02-15 00:41:11,655 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:41:11,655 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526929960] [2022-02-15 00:41:11,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:41:11,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:41:11,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:41:11,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:41:11,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:41:11,831 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-02-15 00:41:11,831 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:41:11,831 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526929960] [2022-02-15 00:41:11,831 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1526929960] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:41:11,831 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:41:11,831 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:41:11,831 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797299377] [2022-02-15 00:41:11,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:41:11,832 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:41:11,832 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:41:11,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:41:11,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:41:11,833 INFO L87 Difference]: Start difference. First operand 269 states and 409 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:41:13,051 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:41:15,068 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:41:17,090 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:41:19,107 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:41:19,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:41:19,434 INFO L93 Difference]: Finished difference Result 305 states and 463 transitions. [2022-02-15 00:41:19,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:41:19,435 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 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 60 [2022-02-15 00:41:19,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:41:19,436 INFO L225 Difference]: With dead ends: 305 [2022-02-15 00:41:19,436 INFO L226 Difference]: Without dead ends: 305 [2022-02-15 00:41:19,436 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 [2022-02-15 00:41:19,437 INFO L933 BasicCegarLoop]: 198 mSDtfsCounter, 33 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 8 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 484 SdHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2022-02-15 00:41:19,437 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 484 Invalid, 371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 360 Invalid, 3 Unknown, 0 Unchecked, 7.6s Time] [2022-02-15 00:41:19,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2022-02-15 00:41:19,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 287. [2022-02-15 00:41:19,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 282 states have (on average 1.5425531914893618) internal successors, (435), 282 states have internal predecessors, (435), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:41:19,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 439 transitions. [2022-02-15 00:41:19,445 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 439 transitions. Word has length 60 [2022-02-15 00:41:19,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:41:19,445 INFO L470 AbstractCegarLoop]: Abstraction has 287 states and 439 transitions. [2022-02-15 00:41:19,445 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:41:19,445 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 439 transitions. [2022-02-15 00:41:19,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-02-15 00:41:19,446 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:41:19,447 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, 1] [2022-02-15 00:41:19,447 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-15 00:41:19,447 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:41:19,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:41:19,454 INFO L85 PathProgramCache]: Analyzing trace with hash 1385807163, now seen corresponding path program 2 times [2022-02-15 00:41:19,454 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:41:19,454 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422716969] [2022-02-15 00:41:19,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:41:19,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:41:19,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:41:19,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:41:19,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:41:19,641 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-02-15 00:41:19,641 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:41:19,641 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422716969] [2022-02-15 00:41:19,641 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422716969] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:41:19,642 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:41:19,642 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:41:19,642 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642241627] [2022-02-15 00:41:19,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:41:19,643 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:41:19,643 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:41:19,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:41:19,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:41:19,643 INFO L87 Difference]: Start difference. First operand 287 states and 439 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) [2022-02-15 00:41:21,656 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 [] [2022-02-15 00:41:22,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:41:22,059 INFO L93 Difference]: Finished difference Result 467 states and 707 transitions. [2022-02-15 00:41:22,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:41:22,059 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 [2022-02-15 00:41:22,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:41:22,061 INFO L225 Difference]: With dead ends: 467 [2022-02-15 00:41:22,061 INFO L226 Difference]: Without dead ends: 467 [2022-02-15 00:41:22,061 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 [2022-02-15 00:41:22,062 INFO L933 BasicCegarLoop]: 104 mSDtfsCounter, 112 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 43 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 379 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 00:41:22,062 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 296 Invalid, 423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 379 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 00:41:22,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2022-02-15 00:41:22,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 309. [2022-02-15 00:41:22,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 309 states, 304 states have (on average 1.5263157894736843) internal successors, (464), 304 states have internal predecessors, (464), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:41:22,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 468 transitions. [2022-02-15 00:41:22,069 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 468 transitions. Word has length 74 [2022-02-15 00:41:22,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:41:22,070 INFO L470 AbstractCegarLoop]: Abstraction has 309 states and 468 transitions. [2022-02-15 00:41:22,070 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) [2022-02-15 00:41:22,070 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 468 transitions. [2022-02-15 00:41:22,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-02-15 00:41:22,071 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:41:22,071 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, 1] [2022-02-15 00:41:22,072 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-15 00:41:22,072 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:41:22,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:41:22,072 INFO L85 PathProgramCache]: Analyzing trace with hash -273496741, now seen corresponding path program 1 times [2022-02-15 00:41:22,072 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:41:22,072 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102843535] [2022-02-15 00:41:22,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:41:22,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:41:22,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:41:22,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:41:22,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:41:22,269 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-02-15 00:41:22,269 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:41:22,269 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102843535] [2022-02-15 00:41:22,269 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102843535] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:41:22,269 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:41:22,269 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:41:22,269 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944349864] [2022-02-15 00:41:22,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:41:22,270 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:41:22,270 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:41:22,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:41:22,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:41:22,272 INFO L87 Difference]: Start difference. First operand 309 states and 468 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) [2022-02-15 00:41:24,281 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:41:24,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:41:24,601 INFO L93 Difference]: Finished difference Result 326 states and 490 transitions. [2022-02-15 00:41:24,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:41:24,602 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 [2022-02-15 00:41:24,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:41:24,603 INFO L225 Difference]: With dead ends: 326 [2022-02-15 00:41:24,603 INFO L226 Difference]: Without dead ends: 326 [2022-02-15 00:41:24,603 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 [2022-02-15 00:41:24,604 INFO L933 BasicCegarLoop]: 197 mSDtfsCounter, 37 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-15 00:41:24,604 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 482 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 351 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-15 00:41:24,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2022-02-15 00:41:24,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 309. [2022-02-15 00:41:24,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 309 states, 304 states have (on average 1.5230263157894737) internal successors, (463), 304 states have internal predecessors, (463), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:41:24,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 467 transitions. [2022-02-15 00:41:24,609 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 467 transitions. Word has length 74 [2022-02-15 00:41:24,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:41:24,609 INFO L470 AbstractCegarLoop]: Abstraction has 309 states and 467 transitions. [2022-02-15 00:41:24,609 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) [2022-02-15 00:41:24,610 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 467 transitions. [2022-02-15 00:41:24,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-02-15 00:41:24,611 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:41:24,611 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, 1] [2022-02-15 00:41:24,611 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-02-15 00:41:24,611 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:41:24,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:41:24,611 INFO L85 PathProgramCache]: Analyzing trace with hash -322958304, now seen corresponding path program 1 times [2022-02-15 00:41:24,611 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:41:24,612 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730249853] [2022-02-15 00:41:24,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:41:24,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:41:24,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:41:24,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:41:24,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:41:24,780 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-02-15 00:41:24,780 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:41:24,780 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730249853] [2022-02-15 00:41:24,780 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730249853] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:41:24,780 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:41:24,781 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:41:24,781 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168732817] [2022-02-15 00:41:24,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:41:24,781 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:41:24,781 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:41:24,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:41:24,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:41:24,782 INFO L87 Difference]: Start difference. First operand 309 states and 467 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) [2022-02-15 00:41:26,797 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 [] [2022-02-15 00:41:27,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:41:27,127 INFO L93 Difference]: Finished difference Result 326 states and 489 transitions. [2022-02-15 00:41:27,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:41:27,128 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 [2022-02-15 00:41:27,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:41:27,129 INFO L225 Difference]: With dead ends: 326 [2022-02-15 00:41:27,129 INFO L226 Difference]: Without dead ends: 326 [2022-02-15 00:41:27,129 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 [2022-02-15 00:41:27,130 INFO L933 BasicCegarLoop]: 196 mSDtfsCounter, 35 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 480 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-15 00:41:27,130 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 480 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 350 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-15 00:41:27,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2022-02-15 00:41:27,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 309. [2022-02-15 00:41:27,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 309 states, 304 states have (on average 1.519736842105263) internal successors, (462), 304 states have internal predecessors, (462), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:41:27,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 466 transitions. [2022-02-15 00:41:27,135 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 466 transitions. Word has length 75 [2022-02-15 00:41:27,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:41:27,135 INFO L470 AbstractCegarLoop]: Abstraction has 309 states and 466 transitions. [2022-02-15 00:41:27,135 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) [2022-02-15 00:41:27,136 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 466 transitions. [2022-02-15 00:41:27,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-02-15 00:41:27,136 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:41:27,136 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, 1] [2022-02-15 00:41:27,136 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-02-15 00:41:27,137 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:41:27,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:41:27,137 INFO L85 PathProgramCache]: Analyzing trace with hash -453067009, now seen corresponding path program 1 times [2022-02-15 00:41:27,137 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:41:27,137 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180698175] [2022-02-15 00:41:27,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:41:27,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:41:27,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:41:27,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:41:27,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:41:27,292 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-02-15 00:41:27,292 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:41:27,292 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180698175] [2022-02-15 00:41:27,292 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180698175] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:41:27,292 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:41:27,293 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:41:27,293 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131638892] [2022-02-15 00:41:27,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:41:27,293 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:41:27,293 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:41:27,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:41:27,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:41:27,294 INFO L87 Difference]: Start difference. First operand 309 states and 466 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) [2022-02-15 00:41:29,302 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:41:29,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:41:29,656 INFO L93 Difference]: Finished difference Result 468 states and 701 transitions. [2022-02-15 00:41:29,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:41:29,657 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 [2022-02-15 00:41:29,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:41:29,659 INFO L225 Difference]: With dead ends: 468 [2022-02-15 00:41:29,659 INFO L226 Difference]: Without dead ends: 468 [2022-02-15 00:41:29,659 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 [2022-02-15 00:41:29,660 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 117 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 46 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 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 [2022-02-15 00:41:29,660 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 278 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 382 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-15 00:41:29,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2022-02-15 00:41:29,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 315. [2022-02-15 00:41:29,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 315 states, 310 states have (on average 1.5129032258064516) internal successors, (469), 310 states have internal predecessors, (469), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:41:29,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 473 transitions. [2022-02-15 00:41:29,666 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 473 transitions. Word has length 76 [2022-02-15 00:41:29,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:41:29,666 INFO L470 AbstractCegarLoop]: Abstraction has 315 states and 473 transitions. [2022-02-15 00:41:29,666 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) [2022-02-15 00:41:29,666 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 473 transitions. [2022-02-15 00:41:29,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-02-15 00:41:29,667 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:41:29,667 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, 1] [2022-02-15 00:41:29,667 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-02-15 00:41:29,667 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:41:29,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:41:29,667 INFO L85 PathProgramCache]: Analyzing trace with hash 860930243, now seen corresponding path program 1 times [2022-02-15 00:41:29,667 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:41:29,668 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462837313] [2022-02-15 00:41:29,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:41:29,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:41:29,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:41:29,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:41:29,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:41:29,837 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-02-15 00:41:29,837 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:41:29,837 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462837313] [2022-02-15 00:41:29,837 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462837313] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:41:29,837 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:41:29,837 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:41:29,838 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235634749] [2022-02-15 00:41:29,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:41:29,838 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:41:29,838 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:41:29,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:41:29,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:41:29,839 INFO L87 Difference]: Start difference. First operand 315 states and 473 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 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) [2022-02-15 00:41:31,852 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 [] [2022-02-15 00:41:32,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:41:32,205 INFO L93 Difference]: Finished difference Result 468 states and 696 transitions. [2022-02-15 00:41:32,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:41:32,205 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 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 [2022-02-15 00:41:32,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:41:32,207 INFO L225 Difference]: With dead ends: 468 [2022-02-15 00:41:32,207 INFO L226 Difference]: Without dead ends: 468 [2022-02-15 00:41:32,207 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 [2022-02-15 00:41:32,208 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 115 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 46 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 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 [2022-02-15 00:41:32,208 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 278 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 382 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-15 00:41:32,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2022-02-15 00:41:32,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 317. [2022-02-15 00:41:32,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 312 states have (on average 1.5) internal successors, (468), 312 states have internal predecessors, (468), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:41:32,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 472 transitions. [2022-02-15 00:41:32,213 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 472 transitions. Word has length 77 [2022-02-15 00:41:32,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:41:32,213 INFO L470 AbstractCegarLoop]: Abstraction has 317 states and 472 transitions. [2022-02-15 00:41:32,213 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 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) [2022-02-15 00:41:32,214 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 472 transitions. [2022-02-15 00:41:32,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-02-15 00:41:32,214 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:41:32,214 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, 1] [2022-02-15 00:41:32,214 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-02-15 00:41:32,214 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:41:32,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:41:32,215 INFO L85 PathProgramCache]: Analyzing trace with hash -2103809815, now seen corresponding path program 1 times [2022-02-15 00:41:32,215 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:41:32,215 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823589895] [2022-02-15 00:41:32,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:41:32,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:41:32,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:41:32,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:41:32,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:41:32,371 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-02-15 00:41:32,371 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:41:32,372 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823589895] [2022-02-15 00:41:32,372 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [823589895] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:41:32,372 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:41:32,372 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 00:41:32,372 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931193359] [2022-02-15 00:41:32,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:41:32,372 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 00:41:32,372 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:41:32,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 00:41:32,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 00:41:32,376 INFO L87 Difference]: Start difference. First operand 317 states and 472 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:41:34,383 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:41:34,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:41:34,742 INFO L93 Difference]: Finished difference Result 476 states and 708 transitions. [2022-02-15 00:41:34,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 00:41:34,743 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 78 [2022-02-15 00:41:34,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:41:34,744 INFO L225 Difference]: With dead ends: 476 [2022-02-15 00:41:34,745 INFO L226 Difference]: Without dead ends: 476 [2022-02-15 00:41:34,745 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 [2022-02-15 00:41:34,745 INFO L933 BasicCegarLoop]: 315 mSDtfsCounter, 125 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 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 [2022-02-15 00:41:34,745 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 477 Invalid, 347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 339 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 00:41:34,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2022-02-15 00:41:34,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 476. [2022-02-15 00:41:34,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 476 states, 471 states have (on average 1.494692144373673) internal successors, (704), 471 states have internal predecessors, (704), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:41:34,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 476 states to 476 states and 708 transitions. [2022-02-15 00:41:34,752 INFO L78 Accepts]: Start accepts. Automaton has 476 states and 708 transitions. Word has length 78 [2022-02-15 00:41:34,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:41:34,752 INFO L470 AbstractCegarLoop]: Abstraction has 476 states and 708 transitions. [2022-02-15 00:41:34,753 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:41:34,753 INFO L276 IsEmpty]: Start isEmpty. Operand 476 states and 708 transitions. [2022-02-15 00:41:34,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-02-15 00:41:34,753 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:41:34,753 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, 1] [2022-02-15 00:41:34,753 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-02-15 00:41:34,754 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:41:34,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:41:34,754 INFO L85 PathProgramCache]: Analyzing trace with hash -1142195798, now seen corresponding path program 1 times [2022-02-15 00:41:34,754 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:41:34,754 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462117543] [2022-02-15 00:41:34,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:41:34,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:41:34,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:41:34,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:41:34,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:41:34,902 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-02-15 00:41:34,902 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:41:34,902 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462117543] [2022-02-15 00:41:34,902 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462117543] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:41:34,902 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:41:34,902 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 00:41:34,902 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421598757] [2022-02-15 00:41:34,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:41:34,903 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 00:41:34,903 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:41:34,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 00:41:34,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 00:41:34,904 INFO L87 Difference]: Start difference. First operand 476 states and 708 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 3 states have internal predecessors, (72), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:41:36,912 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:41:37,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:41:37,163 INFO L93 Difference]: Finished difference Result 501 states and 741 transitions. [2022-02-15 00:41:37,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 00:41:37,164 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 3 states have internal predecessors, (72), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 78 [2022-02-15 00:41:37,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:41:37,165 INFO L225 Difference]: With dead ends: 501 [2022-02-15 00:41:37,165 INFO L226 Difference]: Without dead ends: 501 [2022-02-15 00:41:37,165 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 [2022-02-15 00:41:37,166 INFO L933 BasicCegarLoop]: 196 mSDtfsCounter, 16 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-15 00:41:37,166 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 358 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 214 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-15 00:41:37,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2022-02-15 00:41:37,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 501. [2022-02-15 00:41:37,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 501 states, 496 states have (on average 1.4858870967741935) internal successors, (737), 496 states have internal predecessors, (737), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:41:37,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 741 transitions. [2022-02-15 00:41:37,173 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 741 transitions. Word has length 78 [2022-02-15 00:41:37,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:41:37,173 INFO L470 AbstractCegarLoop]: Abstraction has 501 states and 741 transitions. [2022-02-15 00:41:37,173 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 3 states have internal predecessors, (72), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:41:37,173 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 741 transitions. [2022-02-15 00:41:37,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-02-15 00:41:37,174 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:41:37,174 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, 1] [2022-02-15 00:41:37,174 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-02-15 00:41:37,175 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:41:37,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:41:37,175 INFO L85 PathProgramCache]: Analyzing trace with hash 1502152710, now seen corresponding path program 1 times [2022-02-15 00:41:37,175 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:41:37,175 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406586570] [2022-02-15 00:41:37,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:41:37,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:41:37,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:41:37,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:41:37,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:41:37,315 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-02-15 00:41:37,315 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:41:37,315 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406586570] [2022-02-15 00:41:37,315 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406586570] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:41:37,315 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:41:37,315 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 00:41:37,315 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026386675] [2022-02-15 00:41:37,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:41:37,315 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 00:41:37,316 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:41:37,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 00:41:37,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 00:41:37,316 INFO L87 Difference]: Start difference. First operand 501 states and 741 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 3 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) [2022-02-15 00:41:39,324 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:41:39,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:41:39,663 INFO L93 Difference]: Finished difference Result 644 states and 954 transitions. [2022-02-15 00:41:39,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 00:41:39,663 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 3 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 98 [2022-02-15 00:41:39,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:41:39,665 INFO L225 Difference]: With dead ends: 644 [2022-02-15 00:41:39,666 INFO L226 Difference]: Without dead ends: 644 [2022-02-15 00:41:39,666 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 [2022-02-15 00:41:39,666 INFO L933 BasicCegarLoop]: 314 mSDtfsCounter, 125 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 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, 2.3s IncrementalHoareTripleChecker+Time [2022-02-15 00:41:39,666 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 476 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 338 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-15 00:41:39,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 644 states. [2022-02-15 00:41:39,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 644 to 644. [2022-02-15 00:41:39,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 644 states, 639 states have (on average 1.486697965571205) internal successors, (950), 639 states have internal predecessors, (950), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:41:39,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 644 states to 644 states and 954 transitions. [2022-02-15 00:41:39,675 INFO L78 Accepts]: Start accepts. Automaton has 644 states and 954 transitions. Word has length 98 [2022-02-15 00:41:39,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:41:39,675 INFO L470 AbstractCegarLoop]: Abstraction has 644 states and 954 transitions. [2022-02-15 00:41:39,675 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 3 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) [2022-02-15 00:41:39,675 INFO L276 IsEmpty]: Start isEmpty. Operand 644 states and 954 transitions. [2022-02-15 00:41:39,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-02-15 00:41:39,676 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:41:39,676 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] [2022-02-15 00:41:39,677 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-02-15 00:41:39,677 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:41:39,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:41:39,677 INFO L85 PathProgramCache]: Analyzing trace with hash -1668406687, now seen corresponding path program 1 times [2022-02-15 00:41:39,677 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:41:39,677 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687200399] [2022-02-15 00:41:39,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:41:39,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:41:39,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:41:39,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:41:39,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:41:39,838 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-02-15 00:41:39,838 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:41:39,838 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687200399] [2022-02-15 00:41:39,838 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687200399] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:41:39,838 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:41:39,838 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 00:41:39,838 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755731972] [2022-02-15 00:41:39,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:41:39,838 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 00:41:39,839 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:41:39,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 00:41:39,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 00:41:39,839 INFO L87 Difference]: Start difference. First operand 644 states and 954 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) [2022-02-15 00:41:41,847 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:41:42,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:41:42,206 INFO L93 Difference]: Finished difference Result 784 states and 1163 transitions. [2022-02-15 00:41:42,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 00:41:42,207 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 [2022-02-15 00:41:42,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:41:42,209 INFO L225 Difference]: With dead ends: 784 [2022-02-15 00:41:42,209 INFO L226 Difference]: Without dead ends: 784 [2022-02-15 00:41:42,209 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 [2022-02-15 00:41:42,210 INFO L933 BasicCegarLoop]: 313 mSDtfsCounter, 125 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 337 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 475 SdHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 337 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 00:41:42,210 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 475 Invalid, 345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 337 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 00:41:42,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 784 states. [2022-02-15 00:41:42,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 784 to 784. [2022-02-15 00:41:42,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 784 states, 779 states have (on average 1.4878048780487805) internal successors, (1159), 779 states have internal predecessors, (1159), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:41:42,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 784 states to 784 states and 1163 transitions. [2022-02-15 00:41:42,223 INFO L78 Accepts]: Start accepts. Automaton has 784 states and 1163 transitions. Word has length 118 [2022-02-15 00:41:42,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:41:42,223 INFO L470 AbstractCegarLoop]: Abstraction has 784 states and 1163 transitions. [2022-02-15 00:41:42,224 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) [2022-02-15 00:41:42,224 INFO L276 IsEmpty]: Start isEmpty. Operand 784 states and 1163 transitions. [2022-02-15 00:41:42,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-02-15 00:41:42,225 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:41:42,225 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:41:42,225 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-02-15 00:41:42,225 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:41:42,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:41:42,226 INFO L85 PathProgramCache]: Analyzing trace with hash -2038047743, now seen corresponding path program 1 times [2022-02-15 00:41:42,226 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:41:42,226 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784523346] [2022-02-15 00:41:42,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:41:42,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:41:42,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:41:42,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:41:42,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:41:42,384 INFO L134 CoverageAnalysis]: Checked inductivity of 289 backedges. 196 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-02-15 00:41:42,384 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:41:42,384 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784523346] [2022-02-15 00:41:42,384 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784523346] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:41:42,384 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:41:42,384 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:41:42,384 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895477760] [2022-02-15 00:41:42,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:41:42,384 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:41:42,384 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:41:42,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:41:42,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:41:42,385 INFO L87 Difference]: Start difference. First operand 784 states and 1163 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) [2022-02-15 00:41:44,394 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:41:44,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:41:44,738 INFO L93 Difference]: Finished difference Result 1274 states and 1885 transitions. [2022-02-15 00:41:44,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:41:44,738 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 153 [2022-02-15 00:41:44,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:41:44,742 INFO L225 Difference]: With dead ends: 1274 [2022-02-15 00:41:44,742 INFO L226 Difference]: Without dead ends: 1274 [2022-02-15 00:41:44,742 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 [2022-02-15 00:41:44,742 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 110 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 43 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 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, 2.3s IncrementalHoareTripleChecker+Time [2022-02-15 00:41:44,742 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 280 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 385 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-15 00:41:44,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1274 states. [2022-02-15 00:41:44,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1274 to 909. [2022-02-15 00:41:44,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 909 states, 904 states have (on average 1.4988938053097345) internal successors, (1355), 904 states have internal predecessors, (1355), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:41:44,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 909 states to 909 states and 1359 transitions. [2022-02-15 00:41:44,757 INFO L78 Accepts]: Start accepts. Automaton has 909 states and 1359 transitions. Word has length 153 [2022-02-15 00:41:44,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:41:44,757 INFO L470 AbstractCegarLoop]: Abstraction has 909 states and 1359 transitions. [2022-02-15 00:41:44,757 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) [2022-02-15 00:41:44,757 INFO L276 IsEmpty]: Start isEmpty. Operand 909 states and 1359 transitions. [2022-02-15 00:41:44,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-02-15 00:41:44,777 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:41:44,777 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:41:44,777 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-02-15 00:41:44,777 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:41:44,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:41:44,778 INFO L85 PathProgramCache]: Analyzing trace with hash 1058184288, now seen corresponding path program 1 times [2022-02-15 00:41:44,778 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:41:44,778 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841625954] [2022-02-15 00:41:44,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:41:44,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:41:44,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:41:44,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:41:44,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:41:44,948 INFO L134 CoverageAnalysis]: Checked inductivity of 289 backedges. 190 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-02-15 00:41:44,948 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:41:44,948 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841625954] [2022-02-15 00:41:44,948 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841625954] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:41:44,948 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:41:44,948 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:41:44,948 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119144685] [2022-02-15 00:41:44,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:41:44,949 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:41:44,949 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:41:44,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:41:44,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:41:44,950 INFO L87 Difference]: Start difference. First operand 909 states and 1359 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) [2022-02-15 00:41:46,958 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:41:47,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:41:47,356 INFO L93 Difference]: Finished difference Result 1374 states and 2022 transitions. [2022-02-15 00:41:47,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:41:47,356 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 153 [2022-02-15 00:41:47,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:41:47,359 INFO L225 Difference]: With dead ends: 1374 [2022-02-15 00:41:47,359 INFO L226 Difference]: Without dead ends: 1374 [2022-02-15 00:41:47,360 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 [2022-02-15 00:41:47,360 INFO L933 BasicCegarLoop]: 211 mSDtfsCounter, 113 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 501 mSolverCounterSat, 31 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 504 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 501 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 00:41:47,360 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 504 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 501 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 00:41:47,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1374 states. [2022-02-15 00:41:47,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1374 to 989. [2022-02-15 00:41:47,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 989 states, 984 states have (on average 1.4806910569105691) internal successors, (1457), 984 states have internal predecessors, (1457), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:41:47,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 989 states to 989 states and 1461 transitions. [2022-02-15 00:41:47,374 INFO L78 Accepts]: Start accepts. Automaton has 989 states and 1461 transitions. Word has length 153 [2022-02-15 00:41:47,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:41:47,374 INFO L470 AbstractCegarLoop]: Abstraction has 989 states and 1461 transitions. [2022-02-15 00:41:47,375 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) [2022-02-15 00:41:47,375 INFO L276 IsEmpty]: Start isEmpty. Operand 989 states and 1461 transitions. [2022-02-15 00:41:47,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-02-15 00:41:47,376 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:41:47,377 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:41:47,377 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-02-15 00:41:47,377 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:41:47,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:41:47,377 INFO L85 PathProgramCache]: Analyzing trace with hash 1636736463, now seen corresponding path program 1 times [2022-02-15 00:41:47,377 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:41:47,378 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630154894] [2022-02-15 00:41:47,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:41:47,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:41:47,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:41:47,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:41:47,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:41:47,544 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 195 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-02-15 00:41:47,544 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:41:47,544 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630154894] [2022-02-15 00:41:47,545 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630154894] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:41:47,546 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:41:47,546 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:41:47,546 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516155653] [2022-02-15 00:41:47,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:41:47,546 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:41:47,546 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:41:47,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:41:47,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:41:47,547 INFO L87 Difference]: Start difference. First operand 989 states and 1461 transitions. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:41:50,514 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 [] [2022-02-15 00:41:52,533 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:41:54,552 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:41:54,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:41:54,977 INFO L93 Difference]: Finished difference Result 1256 states and 1843 transitions. [2022-02-15 00:41:54,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:41:54,978 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 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 [2022-02-15 00:41:54,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:41:54,981 INFO L225 Difference]: With dead ends: 1256 [2022-02-15 00:41:54,981 INFO L226 Difference]: Without dead ends: 1256 [2022-02-15 00:41:54,981 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 [2022-02-15 00:41:54,981 INFO L933 BasicCegarLoop]: 236 mSDtfsCounter, 95 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 530 mSolverCounterSat, 9 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 561 SdHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 530 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-02-15 00:41:54,982 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 561 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 530 Invalid, 3 Unknown, 0 Unchecked, 7.4s Time] [2022-02-15 00:41:54,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1256 states. [2022-02-15 00:41:54,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1256 to 989. [2022-02-15 00:41:54,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 989 states, 984 states have (on average 1.4766260162601625) internal successors, (1453), 984 states have internal predecessors, (1453), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:41:54,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 989 states to 989 states and 1457 transitions. [2022-02-15 00:41:54,994 INFO L78 Accepts]: Start accepts. Automaton has 989 states and 1457 transitions. Word has length 154 [2022-02-15 00:41:54,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:41:54,994 INFO L470 AbstractCegarLoop]: Abstraction has 989 states and 1457 transitions. [2022-02-15 00:41:54,995 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:41:54,995 INFO L276 IsEmpty]: Start isEmpty. Operand 989 states and 1457 transitions. [2022-02-15 00:41:54,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-02-15 00:41:54,996 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:41:54,996 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 7, 7, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:41:54,997 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-02-15 00:41:54,997 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:41:54,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:41:54,997 INFO L85 PathProgramCache]: Analyzing trace with hash -1147672093, now seen corresponding path program 1 times [2022-02-15 00:41:54,997 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:41:54,997 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341276370] [2022-02-15 00:41:54,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:41:54,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:41:55,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:41:55,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:41:55,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:41:55,155 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 227 proven. 0 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2022-02-15 00:41:55,155 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:41:55,155 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341276370] [2022-02-15 00:41:55,155 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341276370] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:41:55,155 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:41:55,155 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:41:55,155 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80732351] [2022-02-15 00:41:55,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:41:55,156 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:41:55,156 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:41:55,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:41:55,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:41:55,156 INFO L87 Difference]: Start difference. First operand 989 states and 1457 transitions. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:41:56,882 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:41:58,904 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:42:00,924 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:42:02,953 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:42:03,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:42:03,302 INFO L93 Difference]: Finished difference Result 1334 states and 1929 transitions. [2022-02-15 00:42:03,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:42:03,303 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 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 167 [2022-02-15 00:42:03,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:42:03,306 INFO L225 Difference]: With dead ends: 1334 [2022-02-15 00:42:03,306 INFO L226 Difference]: Without dead ends: 1334 [2022-02-15 00:42:03,306 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 [2022-02-15 00:42:03,307 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 117 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 46 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2022-02-15 00:42:03,307 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 278 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 383 Invalid, 3 Unknown, 0 Unchecked, 8.1s Time] [2022-02-15 00:42:03,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1334 states. [2022-02-15 00:42:03,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1334 to 989. [2022-02-15 00:42:03,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 989 states, 984 states have (on average 1.4573170731707317) internal successors, (1434), 984 states have internal predecessors, (1434), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:42:03,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 989 states to 989 states and 1438 transitions. [2022-02-15 00:42:03,320 INFO L78 Accepts]: Start accepts. Automaton has 989 states and 1438 transitions. Word has length 167 [2022-02-15 00:42:03,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:42:03,320 INFO L470 AbstractCegarLoop]: Abstraction has 989 states and 1438 transitions. [2022-02-15 00:42:03,320 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:42:03,320 INFO L276 IsEmpty]: Start isEmpty. Operand 989 states and 1438 transitions. [2022-02-15 00:42:03,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-02-15 00:42:03,322 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:42:03,322 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 7, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:42:03,322 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-02-15 00:42:03,322 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:42:03,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:42:03,322 INFO L85 PathProgramCache]: Analyzing trace with hash -584532014, now seen corresponding path program 1 times [2022-02-15 00:42:03,323 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:42:03,323 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273423812] [2022-02-15 00:42:03,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:42:03,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:42:03,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:42:03,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:42:03,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:42:03,471 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 234 proven. 0 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2022-02-15 00:42:03,472 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:42:03,472 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273423812] [2022-02-15 00:42:03,472 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273423812] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:42:03,472 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:42:03,472 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:42:03,472 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666483399] [2022-02-15 00:42:03,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:42:03,472 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:42:03,472 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:42:03,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:42:03,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:42:03,473 INFO L87 Difference]: Start difference. First operand 989 states and 1438 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:42:05,481 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:42:05,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:42:05,878 INFO L93 Difference]: Finished difference Result 1220 states and 1776 transitions. [2022-02-15 00:42:05,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:42:05,878 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 168 [2022-02-15 00:42:05,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:42:05,881 INFO L225 Difference]: With dead ends: 1220 [2022-02-15 00:42:05,881 INFO L226 Difference]: Without dead ends: 1220 [2022-02-15 00:42:05,882 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 [2022-02-15 00:42:05,882 INFO L933 BasicCegarLoop]: 228 mSDtfsCounter, 90 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 505 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 505 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 00:42:05,882 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [90 Valid, 545 Invalid, 512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 505 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 00:42:05,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1220 states. [2022-02-15 00:42:05,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1220 to 989. [2022-02-15 00:42:05,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 989 states, 984 states have (on average 1.4532520325203253) internal successors, (1430), 984 states have internal predecessors, (1430), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:42:05,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 989 states to 989 states and 1434 transitions. [2022-02-15 00:42:05,894 INFO L78 Accepts]: Start accepts. Automaton has 989 states and 1434 transitions. Word has length 168 [2022-02-15 00:42:05,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:42:05,895 INFO L470 AbstractCegarLoop]: Abstraction has 989 states and 1434 transitions. [2022-02-15 00:42:05,895 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:42:05,895 INFO L276 IsEmpty]: Start isEmpty. Operand 989 states and 1434 transitions. [2022-02-15 00:42:05,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-02-15 00:42:05,896 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:42:05,897 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 7, 6, 3, 3, 3, 3, 3, 3, 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] [2022-02-15 00:42:05,897 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-02-15 00:42:05,897 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:42:05,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:42:05,897 INFO L85 PathProgramCache]: Analyzing trace with hash -1924679811, now seen corresponding path program 2 times [2022-02-15 00:42:05,897 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:42:05,897 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294952963] [2022-02-15 00:42:05,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:42:05,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:42:05,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:42:06,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:42:06,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:42:06,082 INFO L134 CoverageAnalysis]: Checked inductivity of 395 backedges. 298 proven. 1 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2022-02-15 00:42:06,082 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:42:06,082 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294952963] [2022-02-15 00:42:06,082 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294952963] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-15 00:42:06,082 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [820200355] [2022-02-15 00:42:06,082 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-15 00:42:06,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-15 00:42:06,083 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-15 00:42:06,084 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) [2022-02-15 00:42:06,087 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-02-15 00:42:13,648 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-15 00:42:13,648 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-15 00:42:13,666 INFO L263 TraceCheckSpWp]: Trace formula consists of 1856 conjuncts, 16 conjunts are in the unsatisfiable core [2022-02-15 00:42:13,674 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-15 00:42:13,804 INFO L353 Elim1Store]: treesize reduction 54, result has 44.3 percent of original size [2022-02-15 00:42:13,805 INFO L387 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 91 [2022-02-15 00:42:13,809 INFO L387 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 71 treesize of output 35 [2022-02-15 00:42:13,825 INFO L387 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 [2022-02-15 00:42:13,833 INFO L387 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 [2022-02-15 00:42:13,921 INFO L387 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 9 treesize of output 3 [2022-02-15 00:42:13,964 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2022-02-15 00:42:13,967 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 7 treesize of output 3 [2022-02-15 00:42:13,995 INFO L353 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-02-15 00:42:13,995 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-02-15 00:42:14,074 INFO L353 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-15 00:42:14,074 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 1 case distinctions, treesize of input 18 treesize of output 19 [2022-02-15 00:42:14,109 INFO L387 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 19 treesize of output 7 [2022-02-15 00:42:14,202 INFO L134 CoverageAnalysis]: Checked inductivity of 395 backedges. 260 proven. 40 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2022-02-15 00:42:14,202 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-15 00:42:14,357 INFO L387 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 20 treesize of output 18 [2022-02-15 00:42:14,426 INFO L134 CoverageAnalysis]: Checked inductivity of 395 backedges. 267 proven. 0 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2022-02-15 00:42:14,427 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [820200355] provided 1 perfect and 1 imperfect interpolant sequences [2022-02-15 00:42:14,427 INFO L191 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-02-15 00:42:14,427 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6, 5] total 11 [2022-02-15 00:42:14,427 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265266372] [2022-02-15 00:42:14,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:42:14,428 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 00:42:14,428 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:42:14,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 00:42:14,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-02-15 00:42:14,428 INFO L87 Difference]: Start difference. First operand 989 states and 1434 transitions. Second operand has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:42:16,434 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:42:16,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:42:16,665 INFO L93 Difference]: Finished difference Result 1334 states and 1911 transitions. [2022-02-15 00:42:16,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 00:42:16,665 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 172 [2022-02-15 00:42:16,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:42:16,668 INFO L225 Difference]: With dead ends: 1334 [2022-02-15 00:42:16,668 INFO L226 Difference]: Without dead ends: 1334 [2022-02-15 00:42:16,669 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 354 GetRequests, 344 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-02-15 00:42:16,669 INFO L933 BasicCegarLoop]: 103 mSDtfsCounter, 108 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 42 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-02-15 00:42:16,669 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 290 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 210 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-02-15 00:42:16,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1334 states. [2022-02-15 00:42:16,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1334 to 989. [2022-02-15 00:42:16,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 989 states, 984 states have (on average 1.4390243902439024) internal successors, (1416), 984 states have internal predecessors, (1416), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:42:16,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 989 states to 989 states and 1420 transitions. [2022-02-15 00:42:16,682 INFO L78 Accepts]: Start accepts. Automaton has 989 states and 1420 transitions. Word has length 172 [2022-02-15 00:42:16,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:42:16,683 INFO L470 AbstractCegarLoop]: Abstraction has 989 states and 1420 transitions. [2022-02-15 00:42:16,683 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:42:16,683 INFO L276 IsEmpty]: Start isEmpty. Operand 989 states and 1420 transitions. [2022-02-15 00:42:16,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-02-15 00:42:16,685 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:42:16,685 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 7, 6, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:42:16,719 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-02-15 00:42:16,899 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-15 00:42:16,899 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:42:16,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:42:16,900 INFO L85 PathProgramCache]: Analyzing trace with hash -294325173, now seen corresponding path program 1 times [2022-02-15 00:42:16,900 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:42:16,900 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805645867] [2022-02-15 00:42:16,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:42:16,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:42:16,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:42:17,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:42:17,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:42:17,052 INFO L134 CoverageAnalysis]: Checked inductivity of 398 backedges. 299 proven. 1 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2022-02-15 00:42:17,052 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:42:17,052 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805645867] [2022-02-15 00:42:17,052 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805645867] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-15 00:42:17,052 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [922296599] [2022-02-15 00:42:17,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:42:17,052 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-15 00:42:17,052 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-15 00:42:17,053 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-15 00:42:17,054 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-15 00:42:17,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:42:17,957 INFO L263 TraceCheckSpWp]: Trace formula consists of 1859 conjuncts, 16 conjunts are in the unsatisfiable core [2022-02-15 00:42:17,966 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-15 00:42:18,007 INFO L353 Elim1Store]: treesize reduction 54, result has 44.3 percent of original size [2022-02-15 00:42:18,008 INFO L387 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 91 [2022-02-15 00:42:18,011 INFO L387 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 71 treesize of output 35 [2022-02-15 00:42:18,016 INFO L387 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 [2022-02-15 00:42:18,023 INFO L387 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 [2022-02-15 00:42:18,149 INFO L387 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 17 treesize of output 13 [2022-02-15 00:42:18,211 INFO L353 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-02-15 00:42:18,211 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-02-15 00:42:18,304 INFO L353 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-15 00:42:18,304 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 1 case distinctions, treesize of input 18 treesize of output 19 [2022-02-15 00:42:18,342 INFO L387 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 19 treesize of output 7 [2022-02-15 00:42:18,430 INFO L134 CoverageAnalysis]: Checked inductivity of 398 backedges. 263 proven. 40 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2022-02-15 00:42:18,430 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-15 00:42:18,562 INFO L387 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 20 treesize of output 18 [2022-02-15 00:42:18,664 INFO L134 CoverageAnalysis]: Checked inductivity of 398 backedges. 270 proven. 0 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2022-02-15 00:42:18,664 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [922296599] provided 1 perfect and 1 imperfect interpolant sequences [2022-02-15 00:42:18,664 INFO L191 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-02-15 00:42:18,664 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6, 5] total 11 [2022-02-15 00:42:18,664 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256374621] [2022-02-15 00:42:18,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:42:18,665 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 00:42:18,665 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:42:18,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 00:42:18,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-02-15 00:42:18,665 INFO L87 Difference]: Start difference. First operand 989 states and 1420 transitions. Second operand has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:42:20,676 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 [] [2022-02-15 00:42:20,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:42:20,910 INFO L93 Difference]: Finished difference Result 1326 states and 1887 transitions. [2022-02-15 00:42:20,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 00:42:20,910 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 173 [2022-02-15 00:42:20,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:42:20,914 INFO L225 Difference]: With dead ends: 1326 [2022-02-15 00:42:20,915 INFO L226 Difference]: Without dead ends: 1326 [2022-02-15 00:42:20,915 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 356 GetRequests, 346 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-02-15 00:42:20,915 INFO L933 BasicCegarLoop]: 101 mSDtfsCounter, 109 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 44 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-02-15 00:42:20,916 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 284 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 209 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-02-15 00:42:20,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1326 states. [2022-02-15 00:42:20,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1326 to 989. [2022-02-15 00:42:20,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 989 states, 984 states have (on average 1.4247967479674797) internal successors, (1402), 984 states have internal predecessors, (1402), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:42:20,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 989 states to 989 states and 1406 transitions. [2022-02-15 00:42:20,930 INFO L78 Accepts]: Start accepts. Automaton has 989 states and 1406 transitions. Word has length 173 [2022-02-15 00:42:20,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:42:20,931 INFO L470 AbstractCegarLoop]: Abstraction has 989 states and 1406 transitions. [2022-02-15 00:42:20,931 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:42:20,931 INFO L276 IsEmpty]: Start isEmpty. Operand 989 states and 1406 transitions. [2022-02-15 00:42:20,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-02-15 00:42:20,932 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:42:20,933 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 7, 6, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:42:20,963 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-02-15 00:42:21,151 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable19 [2022-02-15 00:42:21,151 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:42:21,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:42:21,152 INFO L85 PathProgramCache]: Analyzing trace with hash 1980243819, now seen corresponding path program 1 times [2022-02-15 00:42:21,152 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:42:21,152 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894672326] [2022-02-15 00:42:21,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:42:21,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:42:21,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:42:21,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:42:21,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:42:21,338 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 273 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2022-02-15 00:42:21,338 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:42:21,338 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894672326] [2022-02-15 00:42:21,338 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894672326] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:42:21,338 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:42:21,338 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:42:21,340 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242842353] [2022-02-15 00:42:21,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:42:21,341 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:42:21,341 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:42:21,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:42:21,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:42:21,342 INFO L87 Difference]: Start difference. First operand 989 states and 1406 transitions. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:42:23,351 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 [] [2022-02-15 00:42:23,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:42:23,732 INFO L93 Difference]: Finished difference Result 1183 states and 1697 transitions. [2022-02-15 00:42:23,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:42:23,732 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 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 173 [2022-02-15 00:42:23,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:42:23,735 INFO L225 Difference]: With dead ends: 1183 [2022-02-15 00:42:23,735 INFO L226 Difference]: Without dead ends: 1183 [2022-02-15 00:42:23,735 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 [2022-02-15 00:42:23,736 INFO L933 BasicCegarLoop]: 217 mSDtfsCounter, 69 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 00:42:23,736 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 523 Invalid, 483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 476 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 00:42:23,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1183 states. [2022-02-15 00:42:23,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1183 to 993. [2022-02-15 00:42:23,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 993 states, 988 states have (on average 1.4230769230769231) internal successors, (1406), 988 states have internal predecessors, (1406), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:42:23,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 993 states to 993 states and 1410 transitions. [2022-02-15 00:42:23,747 INFO L78 Accepts]: Start accepts. Automaton has 993 states and 1410 transitions. Word has length 173 [2022-02-15 00:42:23,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:42:23,748 INFO L470 AbstractCegarLoop]: Abstraction has 993 states and 1410 transitions. [2022-02-15 00:42:23,748 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:42:23,748 INFO L276 IsEmpty]: Start isEmpty. Operand 993 states and 1410 transitions. [2022-02-15 00:42:23,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-02-15 00:42:23,749 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:42:23,749 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 7, 6, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:42:23,749 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-02-15 00:42:23,750 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:42:23,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:42:23,750 INFO L85 PathProgramCache]: Analyzing trace with hash 1917528268, now seen corresponding path program 1 times [2022-02-15 00:42:23,750 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:42:23,750 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065072033] [2022-02-15 00:42:23,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:42:23,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:42:23,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:42:23,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:42:23,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:42:23,980 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 247 proven. 1 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2022-02-15 00:42:23,980 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:42:23,980 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065072033] [2022-02-15 00:42:23,980 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1065072033] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-15 00:42:23,980 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [567042967] [2022-02-15 00:42:23,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:42:23,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-15 00:42:23,981 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-15 00:42:23,982 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-15 00:42:23,983 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-15 00:42:24,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:42:24,908 INFO L263 TraceCheckSpWp]: Trace formula consists of 1869 conjuncts, 15 conjunts are in the unsatisfiable core [2022-02-15 00:42:24,913 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-15 00:42:24,957 INFO L353 Elim1Store]: treesize reduction 54, result has 44.3 percent of original size [2022-02-15 00:42:24,958 INFO L387 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 91 [2022-02-15 00:42:24,960 INFO L387 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 71 treesize of output 35 [2022-02-15 00:42:24,964 INFO L387 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 [2022-02-15 00:42:24,969 INFO L387 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 [2022-02-15 00:42:25,021 INFO L387 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 9 treesize of output 3 [2022-02-15 00:42:25,063 INFO L353 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-02-15 00:42:25,063 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-02-15 00:42:25,207 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 13 treesize of output 9 [2022-02-15 00:42:25,224 INFO L353 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-15 00:42:25,224 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2022-02-15 00:42:25,263 INFO L387 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 19 treesize of output 7 [2022-02-15 00:42:25,276 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 99 proven. 70 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2022-02-15 00:42:25,276 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-15 00:42:25,515 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 106 proven. 0 refuted. 0 times theorem prover too weak. 293 trivial. 0 not checked. [2022-02-15 00:42:25,515 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [567042967] provided 1 perfect and 1 imperfect interpolant sequences [2022-02-15 00:42:25,515 INFO L191 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-02-15 00:42:25,515 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6, 5] total 11 [2022-02-15 00:42:25,516 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69050569] [2022-02-15 00:42:25,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:42:25,516 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 00:42:25,516 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:42:25,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 00:42:25,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-02-15 00:42:25,517 INFO L87 Difference]: Start difference. First operand 993 states and 1410 transitions. Second operand has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:42:27,523 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:42:27,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:42:27,781 INFO L93 Difference]: Finished difference Result 1415 states and 2001 transitions. [2022-02-15 00:42:27,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 00:42:27,790 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 176 [2022-02-15 00:42:27,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:42:27,793 INFO L225 Difference]: With dead ends: 1415 [2022-02-15 00:42:27,793 INFO L226 Difference]: Without dead ends: 1415 [2022-02-15 00:42:27,793 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 365 GetRequests, 354 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-02-15 00:42:27,794 INFO L933 BasicCegarLoop]: 221 mSDtfsCounter, 88 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 19 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 525 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-15 00:42:27,794 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [88 Valid, 525 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 224 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-15 00:42:27,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1415 states. [2022-02-15 00:42:27,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1415 to 1128. [2022-02-15 00:42:27,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1128 states, 1123 states have (on average 1.416740872662511) internal successors, (1591), 1123 states have internal predecessors, (1591), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:42:27,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1128 states to 1128 states and 1595 transitions. [2022-02-15 00:42:27,806 INFO L78 Accepts]: Start accepts. Automaton has 1128 states and 1595 transitions. Word has length 176 [2022-02-15 00:42:27,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:42:27,806 INFO L470 AbstractCegarLoop]: Abstraction has 1128 states and 1595 transitions. [2022-02-15 00:42:27,806 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:42:27,806 INFO L276 IsEmpty]: Start isEmpty. Operand 1128 states and 1595 transitions. [2022-02-15 00:42:27,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-02-15 00:42:27,808 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:42:27,808 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 7, 6, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:42:27,845 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-02-15 00:42:28,019 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-15 00:42:28,020 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:42:28,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:42:28,020 INFO L85 PathProgramCache]: Analyzing trace with hash -159681075, now seen corresponding path program 1 times [2022-02-15 00:42:28,020 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:42:28,020 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967064433] [2022-02-15 00:42:28,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:42:28,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:42:28,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:42:28,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:42:28,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:42:28,202 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 106 proven. 0 refuted. 0 times theorem prover too weak. 293 trivial. 0 not checked. [2022-02-15 00:42:28,202 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:42:28,202 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967064433] [2022-02-15 00:42:28,202 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967064433] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:42:28,202 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:42:28,202 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:42:28,202 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456350831] [2022-02-15 00:42:28,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:42:28,203 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:42:28,203 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:42:28,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:42:28,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:42:28,203 INFO L87 Difference]: Start difference. First operand 1128 states and 1595 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) [2022-02-15 00:42:30,212 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:42:30,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:42:30,515 INFO L93 Difference]: Finished difference Result 1215 states and 1695 transitions. [2022-02-15 00:42:30,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:42:30,516 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 176 [2022-02-15 00:42:30,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:42:30,519 INFO L225 Difference]: With dead ends: 1215 [2022-02-15 00:42:30,519 INFO L226 Difference]: Without dead ends: 1215 [2022-02-15 00:42:30,519 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 [2022-02-15 00:42:30,519 INFO L933 BasicCegarLoop]: 197 mSDtfsCounter, 29 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 485 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-15 00:42:30,519 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 485 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 359 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-15 00:42:30,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1215 states. [2022-02-15 00:42:30,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1215 to 1128. [2022-02-15 00:42:30,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1128 states, 1123 states have (on average 1.4122885129118432) internal successors, (1586), 1123 states have internal predecessors, (1586), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:42:30,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1128 states to 1128 states and 1590 transitions. [2022-02-15 00:42:30,531 INFO L78 Accepts]: Start accepts. Automaton has 1128 states and 1590 transitions. Word has length 176 [2022-02-15 00:42:30,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:42:30,531 INFO L470 AbstractCegarLoop]: Abstraction has 1128 states and 1590 transitions. [2022-02-15 00:42:30,531 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) [2022-02-15 00:42:30,531 INFO L276 IsEmpty]: Start isEmpty. Operand 1128 states and 1590 transitions. [2022-02-15 00:42:30,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2022-02-15 00:42:30,533 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:42:30,533 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 8, 8, 8, 7, 6, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:42:30,533 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-02-15 00:42:30,533 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:42:30,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:42:30,533 INFO L85 PathProgramCache]: Analyzing trace with hash -193834836, now seen corresponding path program 1 times [2022-02-15 00:42:30,533 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:42:30,533 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007651674] [2022-02-15 00:42:30,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:42:30,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:42:30,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:42:30,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:42:30,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:42:30,757 INFO L134 CoverageAnalysis]: Checked inductivity of 473 backedges. 313 proven. 1 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2022-02-15 00:42:30,757 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:42:30,757 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007651674] [2022-02-15 00:42:30,757 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007651674] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-15 00:42:30,757 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1196595931] [2022-02-15 00:42:30,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:42:30,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-15 00:42:30,758 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-15 00:42:30,759 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-15 00:42:30,760 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-15 00:42:31,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:42:31,778 INFO L263 TraceCheckSpWp]: Trace formula consists of 1979 conjuncts, 15 conjunts are in the unsatisfiable core [2022-02-15 00:42:31,784 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-15 00:42:31,830 INFO L353 Elim1Store]: treesize reduction 54, result has 44.3 percent of original size [2022-02-15 00:42:31,830 INFO L387 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 91 [2022-02-15 00:42:31,833 INFO L387 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 71 treesize of output 35 [2022-02-15 00:42:31,838 INFO L387 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 [2022-02-15 00:42:31,845 INFO L387 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 [2022-02-15 00:42:31,970 INFO L387 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 17 treesize of output 13 [2022-02-15 00:42:32,015 INFO L353 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-02-15 00:42:32,015 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-02-15 00:42:32,136 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 13 treesize of output 9 [2022-02-15 00:42:32,153 INFO L353 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-15 00:42:32,153 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2022-02-15 00:42:32,175 INFO L387 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 19 treesize of output 7 [2022-02-15 00:42:32,224 INFO L134 CoverageAnalysis]: Checked inductivity of 473 backedges. 175 proven. 68 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2022-02-15 00:42:32,224 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-15 00:42:32,429 INFO L134 CoverageAnalysis]: Checked inductivity of 473 backedges. 180 proven. 0 refuted. 0 times theorem prover too weak. 293 trivial. 0 not checked. [2022-02-15 00:42:32,429 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1196595931] provided 1 perfect and 1 imperfect interpolant sequences [2022-02-15 00:42:32,429 INFO L191 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-02-15 00:42:32,429 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6, 5] total 11 [2022-02-15 00:42:32,429 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773839165] [2022-02-15 00:42:32,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:42:32,430 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 00:42:32,430 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:42:32,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 00:42:32,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-02-15 00:42:32,430 INFO L87 Difference]: Start difference. First operand 1128 states and 1590 transitions. Second operand has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:42:34,437 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:42:34,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:42:34,629 INFO L93 Difference]: Finished difference Result 1536 states and 2158 transitions. [2022-02-15 00:42:34,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 00:42:34,630 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 191 [2022-02-15 00:42:34,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:42:34,633 INFO L225 Difference]: With dead ends: 1536 [2022-02-15 00:42:34,633 INFO L226 Difference]: Without dead ends: 1536 [2022-02-15 00:42:34,633 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 395 GetRequests, 384 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-02-15 00:42:34,634 INFO L933 BasicCegarLoop]: 106 mSDtfsCounter, 108 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 31 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 294 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-02-15 00:42:34,634 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 294 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 205 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-02-15 00:42:34,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1536 states. [2022-02-15 00:42:34,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1536 to 1193. [2022-02-15 00:42:34,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1193 states, 1188 states have (on average 1.3981481481481481) internal successors, (1661), 1188 states have internal predecessors, (1661), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:42:34,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1193 states to 1193 states and 1665 transitions. [2022-02-15 00:42:34,646 INFO L78 Accepts]: Start accepts. Automaton has 1193 states and 1665 transitions. Word has length 191 [2022-02-15 00:42:34,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:42:34,646 INFO L470 AbstractCegarLoop]: Abstraction has 1193 states and 1665 transitions. [2022-02-15 00:42:34,646 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:42:34,646 INFO L276 IsEmpty]: Start isEmpty. Operand 1193 states and 1665 transitions. [2022-02-15 00:42:34,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2022-02-15 00:42:34,648 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:42:34,648 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 8, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:42:34,672 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-02-15 00:42:34,863 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-15 00:42:34,863 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:42:34,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:42:34,864 INFO L85 PathProgramCache]: Analyzing trace with hash -1914550177, now seen corresponding path program 1 times [2022-02-15 00:42:34,864 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:42:34,864 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434652527] [2022-02-15 00:42:34,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:42:34,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:42:34,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:42:35,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:42:35,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:42:35,071 INFO L134 CoverageAnalysis]: Checked inductivity of 514 backedges. 120 proven. 0 refuted. 0 times theorem prover too weak. 394 trivial. 0 not checked. [2022-02-15 00:42:35,072 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:42:35,072 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434652527] [2022-02-15 00:42:35,072 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434652527] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:42:35,072 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:42:35,072 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:42:35,072 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551301709] [2022-02-15 00:42:35,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:42:35,072 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:42:35,072 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:42:35,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:42:35,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:42:35,073 INFO L87 Difference]: Start difference. First operand 1193 states and 1665 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) [2022-02-15 00:42:37,087 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 [] [2022-02-15 00:42:37,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:42:37,360 INFO L93 Difference]: Finished difference Result 1294 states and 1785 transitions. [2022-02-15 00:42:37,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:42:37,361 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 194 [2022-02-15 00:42:37,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:42:37,364 INFO L225 Difference]: With dead ends: 1294 [2022-02-15 00:42:37,364 INFO L226 Difference]: Without dead ends: 1294 [2022-02-15 00:42:37,364 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 [2022-02-15 00:42:37,364 INFO L933 BasicCegarLoop]: 195 mSDtfsCounter, 25 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 480 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-15 00:42:37,364 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [25 Valid, 480 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 348 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-15 00:42:37,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1294 states. [2022-02-15 00:42:37,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1294 to 1238. [2022-02-15 00:42:37,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1238 states, 1233 states have (on average 1.391727493917275) internal successors, (1716), 1233 states have internal predecessors, (1716), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:42:37,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1238 states to 1238 states and 1720 transitions. [2022-02-15 00:42:37,376 INFO L78 Accepts]: Start accepts. Automaton has 1238 states and 1720 transitions. Word has length 194 [2022-02-15 00:42:37,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:42:37,376 INFO L470 AbstractCegarLoop]: Abstraction has 1238 states and 1720 transitions. [2022-02-15 00:42:37,376 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) [2022-02-15 00:42:37,376 INFO L276 IsEmpty]: Start isEmpty. Operand 1238 states and 1720 transitions. [2022-02-15 00:42:37,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-02-15 00:42:37,378 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:42:37,378 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 8, 7, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:42:37,378 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-02-15 00:42:37,378 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:42:37,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:42:37,379 INFO L85 PathProgramCache]: Analyzing trace with hash 561934632, now seen corresponding path program 1 times [2022-02-15 00:42:37,379 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:42:37,379 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458627033] [2022-02-15 00:42:37,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:42:37,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:42:37,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:42:37,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:42:37,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:42:37,567 INFO L134 CoverageAnalysis]: Checked inductivity of 521 backedges. 352 proven. 1 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2022-02-15 00:42:37,568 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:42:37,568 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458627033] [2022-02-15 00:42:37,568 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458627033] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-15 00:42:37,568 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1504560649] [2022-02-15 00:42:37,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:42:37,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-15 00:42:37,568 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-15 00:42:37,569 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-15 00:42:37,570 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-02-15 00:42:38,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:42:38,646 INFO L263 TraceCheckSpWp]: Trace formula consists of 1944 conjuncts, 15 conjunts are in the unsatisfiable core [2022-02-15 00:42:38,650 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-15 00:42:38,688 INFO L353 Elim1Store]: treesize reduction 54, result has 44.3 percent of original size [2022-02-15 00:42:38,689 INFO L387 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 91 [2022-02-15 00:42:38,691 INFO L387 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 71 treesize of output 35 [2022-02-15 00:42:38,697 INFO L387 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 [2022-02-15 00:42:38,701 INFO L387 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 [2022-02-15 00:42:38,748 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2022-02-15 00:42:38,751 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 7 treesize of output 3 [2022-02-15 00:42:38,761 INFO L387 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 9 treesize of output 3 [2022-02-15 00:42:38,800 INFO L353 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-02-15 00:42:38,801 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-02-15 00:42:38,932 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 13 treesize of output 9 [2022-02-15 00:42:38,954 INFO L353 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-15 00:42:38,954 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2022-02-15 00:42:38,985 INFO L387 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 19 treesize of output 7 [2022-02-15 00:42:39,019 INFO L134 CoverageAnalysis]: Checked inductivity of 521 backedges. 221 proven. 70 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2022-02-15 00:42:39,019 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-15 00:42:39,232 INFO L134 CoverageAnalysis]: Checked inductivity of 521 backedges. 228 proven. 0 refuted. 0 times theorem prover too weak. 293 trivial. 0 not checked. [2022-02-15 00:42:39,233 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1504560649] provided 1 perfect and 1 imperfect interpolant sequences [2022-02-15 00:42:39,233 INFO L191 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-02-15 00:42:39,233 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6, 5] total 11 [2022-02-15 00:42:39,233 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735946867] [2022-02-15 00:42:39,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:42:39,233 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 00:42:39,233 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:42:39,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 00:42:39,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-02-15 00:42:39,234 INFO L87 Difference]: Start difference. First operand 1238 states and 1720 transitions. Second operand has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:42:41,241 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 [] [2022-02-15 00:42:41,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:42:41,483 INFO L93 Difference]: Finished difference Result 1510 states and 2108 transitions. [2022-02-15 00:42:41,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 00:42:41,484 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 196 [2022-02-15 00:42:41,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:42:41,487 INFO L225 Difference]: With dead ends: 1510 [2022-02-15 00:42:41,487 INFO L226 Difference]: Without dead ends: 1510 [2022-02-15 00:42:41,488 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 405 GetRequests, 394 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-02-15 00:42:41,488 INFO L933 BasicCegarLoop]: 216 mSDtfsCounter, 89 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 17 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 514 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-02-15 00:42:41,488 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [89 Valid, 514 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 213 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-02-15 00:42:41,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1510 states. [2022-02-15 00:42:41,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1510 to 1242. [2022-02-15 00:42:41,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1242 states, 1237 states have (on average 1.3864187550525464) internal successors, (1715), 1237 states have internal predecessors, (1715), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:42:41,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1242 states to 1242 states and 1719 transitions. [2022-02-15 00:42:41,499 INFO L78 Accepts]: Start accepts. Automaton has 1242 states and 1719 transitions. Word has length 196 [2022-02-15 00:42:41,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:42:41,500 INFO L470 AbstractCegarLoop]: Abstraction has 1242 states and 1719 transitions. [2022-02-15 00:42:41,500 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:42:41,500 INFO L276 IsEmpty]: Start isEmpty. Operand 1242 states and 1719 transitions. [2022-02-15 00:42:41,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-02-15 00:42:41,502 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:42:41,502 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 8, 7, 5, 5, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:42:41,526 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-02-15 00:42:41,726 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2022-02-15 00:42:41,727 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:42:41,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:42:41,727 INFO L85 PathProgramCache]: Analyzing trace with hash 1641941448, now seen corresponding path program 1 times [2022-02-15 00:42:41,727 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:42:41,727 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792817471] [2022-02-15 00:42:41,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:42:41,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:42:41,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:42:41,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:42:41,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:42:41,910 INFO L134 CoverageAnalysis]: Checked inductivity of 523 backedges. 353 proven. 1 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2022-02-15 00:42:41,910 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:42:41,911 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792817471] [2022-02-15 00:42:41,911 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792817471] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-15 00:42:41,911 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [465965591] [2022-02-15 00:42:41,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:42:41,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-15 00:42:41,911 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-15 00:42:41,912 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-15 00:42:41,930 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-02-15 00:42:43,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:42:43,081 INFO L263 TraceCheckSpWp]: Trace formula consists of 1947 conjuncts, 15 conjunts are in the unsatisfiable core [2022-02-15 00:42:43,085 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-15 00:42:43,126 INFO L353 Elim1Store]: treesize reduction 54, result has 44.3 percent of original size [2022-02-15 00:42:43,126 INFO L387 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 91 [2022-02-15 00:42:43,129 INFO L387 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 71 treesize of output 35 [2022-02-15 00:42:43,132 INFO L387 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 [2022-02-15 00:42:43,146 INFO L387 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 [2022-02-15 00:42:43,210 INFO L387 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 9 treesize of output 3 [2022-02-15 00:42:43,280 INFO L353 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-02-15 00:42:43,280 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-02-15 00:42:43,392 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 13 treesize of output 9 [2022-02-15 00:42:43,415 INFO L353 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-15 00:42:43,415 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2022-02-15 00:42:43,447 INFO L387 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 19 treesize of output 7 [2022-02-15 00:42:43,487 INFO L134 CoverageAnalysis]: Checked inductivity of 523 backedges. 223 proven. 70 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2022-02-15 00:42:43,487 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-15 00:42:43,716 INFO L134 CoverageAnalysis]: Checked inductivity of 523 backedges. 230 proven. 0 refuted. 0 times theorem prover too weak. 293 trivial. 0 not checked. [2022-02-15 00:42:43,717 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [465965591] provided 1 perfect and 1 imperfect interpolant sequences [2022-02-15 00:42:43,717 INFO L191 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-02-15 00:42:43,717 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6, 5] total 11 [2022-02-15 00:42:43,717 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107103554] [2022-02-15 00:42:43,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:42:43,717 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 00:42:43,717 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:42:43,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 00:42:43,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-02-15 00:42:43,718 INFO L87 Difference]: Start difference. First operand 1242 states and 1719 transitions. Second operand has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:42:45,725 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:42:45,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:42:45,930 INFO L93 Difference]: Finished difference Result 1496 states and 2084 transitions. [2022-02-15 00:42:45,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 00:42:45,930 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 197 [2022-02-15 00:42:45,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:42:45,934 INFO L225 Difference]: With dead ends: 1496 [2022-02-15 00:42:45,934 INFO L226 Difference]: Without dead ends: 1496 [2022-02-15 00:42:45,934 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 407 GetRequests, 396 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-02-15 00:42:45,934 INFO L933 BasicCegarLoop]: 214 mSDtfsCounter, 84 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 17 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 510 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-02-15 00:42:45,935 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [84 Valid, 510 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 211 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-02-15 00:42:45,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1496 states. [2022-02-15 00:42:45,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1496 to 1246. [2022-02-15 00:42:45,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1246 states, 1241 states have (on average 1.3811442385173247) internal successors, (1714), 1241 states have internal predecessors, (1714), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:42:45,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1246 states to 1246 states and 1718 transitions. [2022-02-15 00:42:45,965 INFO L78 Accepts]: Start accepts. Automaton has 1246 states and 1718 transitions. Word has length 197 [2022-02-15 00:42:45,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:42:45,965 INFO L470 AbstractCegarLoop]: Abstraction has 1246 states and 1718 transitions. [2022-02-15 00:42:45,965 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:42:45,965 INFO L276 IsEmpty]: Start isEmpty. Operand 1246 states and 1718 transitions. [2022-02-15 00:42:45,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2022-02-15 00:42:45,967 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:42:45,967 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 8, 7, 5, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:42:45,993 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-02-15 00:42:46,183 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2022-02-15 00:42:46,183 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:42:46,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:42:46,184 INFO L85 PathProgramCache]: Analyzing trace with hash -1104272839, now seen corresponding path program 1 times [2022-02-15 00:42:46,184 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:42:46,184 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880340728] [2022-02-15 00:42:46,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:42:46,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:42:46,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:42:46,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:42:46,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:42:46,376 INFO L134 CoverageAnalysis]: Checked inductivity of 522 backedges. 350 proven. 1 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2022-02-15 00:42:46,376 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:42:46,376 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880340728] [2022-02-15 00:42:46,376 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880340728] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-15 00:42:46,376 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [503858040] [2022-02-15 00:42:46,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:42:46,376 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-15 00:42:46,376 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-15 00:42:46,384 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-15 00:42:46,385 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-02-15 00:42:47,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:42:47,657 INFO L263 TraceCheckSpWp]: Trace formula consists of 2000 conjuncts, 16 conjunts are in the unsatisfiable core [2022-02-15 00:42:47,661 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-15 00:42:47,698 INFO L353 Elim1Store]: treesize reduction 54, result has 44.3 percent of original size [2022-02-15 00:42:47,699 INFO L387 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 91 [2022-02-15 00:42:47,702 INFO L387 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 71 treesize of output 35 [2022-02-15 00:42:47,706 INFO L387 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 [2022-02-15 00:42:47,711 INFO L387 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 [2022-02-15 00:42:47,788 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2022-02-15 00:42:47,790 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 7 treesize of output 3 [2022-02-15 00:42:47,805 INFO L387 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 9 treesize of output 3 [2022-02-15 00:42:47,833 INFO L353 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-02-15 00:42:47,833 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-02-15 00:42:47,928 INFO L353 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-15 00:42:47,928 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 1 case distinctions, treesize of input 18 treesize of output 19 [2022-02-15 00:42:47,967 INFO L387 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 19 treesize of output 7 [2022-02-15 00:42:48,048 INFO L134 CoverageAnalysis]: Checked inductivity of 522 backedges. 324 proven. 50 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2022-02-15 00:42:48,048 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-15 00:42:48,192 INFO L387 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 20 treesize of output 18 [2022-02-15 00:42:48,295 INFO L134 CoverageAnalysis]: Checked inductivity of 522 backedges. 331 proven. 0 refuted. 0 times theorem prover too weak. 191 trivial. 0 not checked. [2022-02-15 00:42:48,295 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [503858040] provided 1 perfect and 1 imperfect interpolant sequences [2022-02-15 00:42:48,295 INFO L191 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-02-15 00:42:48,295 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6, 5] total 11 [2022-02-15 00:42:48,296 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424791146] [2022-02-15 00:42:48,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:42:48,296 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 00:42:48,296 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:42:48,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 00:42:48,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-02-15 00:42:48,296 INFO L87 Difference]: Start difference. First operand 1246 states and 1718 transitions. Second operand has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:42:50,309 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 [] [2022-02-15 00:42:50,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:42:50,535 INFO L93 Difference]: Finished difference Result 1323 states and 1814 transitions. [2022-02-15 00:42:50,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 00:42:50,536 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 207 [2022-02-15 00:42:50,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:42:50,539 INFO L225 Difference]: With dead ends: 1323 [2022-02-15 00:42:50,539 INFO L226 Difference]: Without dead ends: 1323 [2022-02-15 00:42:50,539 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 427 GetRequests, 417 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-02-15 00:42:50,539 INFO L933 BasicCegarLoop]: 204 mSDtfsCounter, 106 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 30 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 488 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-02-15 00:42:50,540 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 488 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 210 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-02-15 00:42:50,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1323 states. [2022-02-15 00:42:50,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1323 to 1047. [2022-02-15 00:42:50,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1047 states, 1042 states have (on average 1.3598848368522074) internal successors, (1417), 1042 states have internal predecessors, (1417), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:42:50,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1047 states to 1047 states and 1421 transitions. [2022-02-15 00:42:50,554 INFO L78 Accepts]: Start accepts. Automaton has 1047 states and 1421 transitions. Word has length 207 [2022-02-15 00:42:50,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:42:50,555 INFO L470 AbstractCegarLoop]: Abstraction has 1047 states and 1421 transitions. [2022-02-15 00:42:50,555 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:42:50,555 INFO L276 IsEmpty]: Start isEmpty. Operand 1047 states and 1421 transitions. [2022-02-15 00:42:50,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2022-02-15 00:42:50,585 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:42:50,585 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 5, 5, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:42:50,612 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-02-15 00:42:50,796 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-15 00:42:50,797 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:42:50,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:42:50,798 INFO L85 PathProgramCache]: Analyzing trace with hash -1448296162, now seen corresponding path program 1 times [2022-02-15 00:42:50,798 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:42:50,798 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836460766] [2022-02-15 00:42:50,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:42:50,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:42:50,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:42:50,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:42:50,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:42:50,964 INFO L134 CoverageAnalysis]: Checked inductivity of 522 backedges. 348 proven. 0 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2022-02-15 00:42:50,964 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:42:50,964 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836460766] [2022-02-15 00:42:50,964 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836460766] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:42:50,964 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:42:50,964 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:42:50,964 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487134207] [2022-02-15 00:42:50,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:42:50,966 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:42:50,966 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:42:50,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:42:50,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:42:50,966 INFO L87 Difference]: Start difference. First operand 1047 states and 1421 transitions. Second operand has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:42:52,975 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:42:53,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:42:53,239 INFO L93 Difference]: Finished difference Result 1065 states and 1439 transitions. [2022-02-15 00:42:53,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:42:53,240 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 220 [2022-02-15 00:42:53,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:42:53,242 INFO L225 Difference]: With dead ends: 1065 [2022-02-15 00:42:53,242 INFO L226 Difference]: Without dead ends: 1065 [2022-02-15 00:42:53,242 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 [2022-02-15 00:42:53,243 INFO L933 BasicCegarLoop]: 185 mSDtfsCounter, 14 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 330 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 460 SdHoareTripleChecker+Invalid, 335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 330 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-15 00:42:53,243 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 460 Invalid, 335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 330 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-15 00:42:53,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1065 states. [2022-02-15 00:42:53,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1065 to 1051. [2022-02-15 00:42:53,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1051 states, 1046 states have (on average 1.3585086042065009) internal successors, (1421), 1046 states have internal predecessors, (1421), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:42:53,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1051 states to 1051 states and 1425 transitions. [2022-02-15 00:42:53,262 INFO L78 Accepts]: Start accepts. Automaton has 1051 states and 1425 transitions. Word has length 220 [2022-02-15 00:42:53,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:42:53,263 INFO L470 AbstractCegarLoop]: Abstraction has 1051 states and 1425 transitions. [2022-02-15 00:42:53,263 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:42:53,263 INFO L276 IsEmpty]: Start isEmpty. Operand 1051 states and 1425 transitions. [2022-02-15 00:42:53,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2022-02-15 00:42:53,265 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:42:53,265 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 8, 8, 6, 6, 5, 5, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:42:53,265 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-02-15 00:42:53,265 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:42:53,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:42:53,265 INFO L85 PathProgramCache]: Analyzing trace with hash 374741211, now seen corresponding path program 1 times [2022-02-15 00:42:53,265 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:42:53,265 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355318493] [2022-02-15 00:42:53,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:42:53,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:42:53,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:42:53,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:42:53,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:42:53,469 INFO L134 CoverageAnalysis]: Checked inductivity of 664 backedges. 434 proven. 0 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2022-02-15 00:42:53,469 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:42:53,469 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355318493] [2022-02-15 00:42:53,469 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [355318493] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:42:53,469 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:42:53,469 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:42:53,470 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217901307] [2022-02-15 00:42:53,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:42:53,470 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:42:53,470 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:42:53,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:42:53,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:42:53,470 INFO L87 Difference]: Start difference. First operand 1051 states and 1425 transitions. Second operand has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:42:55,478 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:42:55,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:42:55,762 INFO L93 Difference]: Finished difference Result 1188 states and 1595 transitions. [2022-02-15 00:42:55,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:42:55,763 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 242 [2022-02-15 00:42:55,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:42:55,765 INFO L225 Difference]: With dead ends: 1188 [2022-02-15 00:42:55,765 INFO L226 Difference]: Without dead ends: 1188 [2022-02-15 00:42:55,765 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 [2022-02-15 00:42:55,765 INFO L933 BasicCegarLoop]: 189 mSDtfsCounter, 19 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 468 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-15 00:42:55,766 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 468 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 355 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-15 00:42:55,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1188 states. [2022-02-15 00:42:55,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1188 to 1155. [2022-02-15 00:42:55,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1155 states, 1150 states have (on average 1.3469565217391304) internal successors, (1549), 1150 states have internal predecessors, (1549), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:42:55,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1155 states to 1155 states and 1553 transitions. [2022-02-15 00:42:55,773 INFO L78 Accepts]: Start accepts. Automaton has 1155 states and 1553 transitions. Word has length 242 [2022-02-15 00:42:55,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:42:55,774 INFO L470 AbstractCegarLoop]: Abstraction has 1155 states and 1553 transitions. [2022-02-15 00:42:55,774 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:42:55,774 INFO L276 IsEmpty]: Start isEmpty. Operand 1155 states and 1553 transitions. [2022-02-15 00:42:55,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2022-02-15 00:42:55,775 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:42:55,775 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 9, 9, 7, 7, 6, 6, 5, 5, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:42:55,775 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-02-15 00:42:55,775 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:42:55,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:42:55,776 INFO L85 PathProgramCache]: Analyzing trace with hash -1012940520, now seen corresponding path program 1 times [2022-02-15 00:42:55,776 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:42:55,776 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320830748] [2022-02-15 00:42:55,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:42:55,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:42:55,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:42:55,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:42:55,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:42:55,996 INFO L134 CoverageAnalysis]: Checked inductivity of 828 backedges. 522 proven. 0 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2022-02-15 00:42:55,996 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:42:55,997 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320830748] [2022-02-15 00:42:55,997 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [320830748] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:42:55,997 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:42:55,997 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:42:55,997 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247530980] [2022-02-15 00:42:55,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:42:55,997 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:42:55,997 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:42:55,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:42:55,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:42:55,998 INFO L87 Difference]: Start difference. First operand 1155 states and 1553 transitions. Second operand has 5 states, 5 states have (on average 29.4) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:42:58,005 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:42:58,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:42:58,291 INFO L93 Difference]: Finished difference Result 1312 states and 1751 transitions. [2022-02-15 00:42:58,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:42:58,292 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 267 [2022-02-15 00:42:58,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:42:58,294 INFO L225 Difference]: With dead ends: 1312 [2022-02-15 00:42:58,294 INFO L226 Difference]: Without dead ends: 1312 [2022-02-15 00:42:58,301 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 [2022-02-15 00:42:58,302 INFO L933 BasicCegarLoop]: 191 mSDtfsCounter, 22 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 369 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 472 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 369 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-15 00:42:58,302 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 472 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 369 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-15 00:42:58,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1312 states. [2022-02-15 00:42:58,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1312 to 1271. [2022-02-15 00:42:58,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1271 states, 1266 states have (on average 1.3404423380726698) internal successors, (1697), 1266 states have internal predecessors, (1697), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:42:58,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1271 states to 1271 states and 1701 transitions. [2022-02-15 00:42:58,311 INFO L78 Accepts]: Start accepts. Automaton has 1271 states and 1701 transitions. Word has length 267 [2022-02-15 00:42:58,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:42:58,311 INFO L470 AbstractCegarLoop]: Abstraction has 1271 states and 1701 transitions. [2022-02-15 00:42:58,311 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:42:58,311 INFO L276 IsEmpty]: Start isEmpty. Operand 1271 states and 1701 transitions. [2022-02-15 00:42:58,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2022-02-15 00:42:58,313 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:42:58,313 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 9, 9, 7, 7, 6, 6, 5, 5, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:42:58,313 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-02-15 00:42:58,313 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:42:58,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:42:58,314 INFO L85 PathProgramCache]: Analyzing trace with hash -1227769673, now seen corresponding path program 1 times [2022-02-15 00:42:58,314 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:42:58,314 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491261533] [2022-02-15 00:42:58,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:42:58,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:42:58,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:42:58,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:42:58,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:42:58,517 INFO L134 CoverageAnalysis]: Checked inductivity of 828 backedges. 526 proven. 0 refuted. 0 times theorem prover too weak. 302 trivial. 0 not checked. [2022-02-15 00:42:58,517 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:42:58,517 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491261533] [2022-02-15 00:42:58,517 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491261533] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:42:58,517 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:42:58,517 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:42:58,517 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477157594] [2022-02-15 00:42:58,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:42:58,518 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:42:58,518 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:42:58,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:42:58,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:42:58,518 INFO L87 Difference]: Start difference. First operand 1271 states and 1701 transitions. Second operand has 5 states, 5 states have (on average 30.0) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:43:00,528 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 [] [2022-02-15 00:43:00,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:43:00,909 INFO L93 Difference]: Finished difference Result 1725 states and 2314 transitions. [2022-02-15 00:43:00,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:43:00,910 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.0) internal successors, (150), 4 states have internal predecessors, (150), 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 267 [2022-02-15 00:43:00,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:43:00,912 INFO L225 Difference]: With dead ends: 1725 [2022-02-15 00:43:00,913 INFO L226 Difference]: Without dead ends: 1725 [2022-02-15 00:43:00,913 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 [2022-02-15 00:43:00,913 INFO L933 BasicCegarLoop]: 105 mSDtfsCounter, 92 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 395 mSolverCounterSat, 39 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 294 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 395 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 00:43:00,913 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [92 Valid, 294 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 395 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 00:43:00,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1725 states. [2022-02-15 00:43:00,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1725 to 1515. [2022-02-15 00:43:00,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1515 states, 1510 states have (on average 1.3543046357615893) internal successors, (2045), 1510 states have internal predecessors, (2045), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:43:00,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1515 states to 1515 states and 2049 transitions. [2022-02-15 00:43:00,927 INFO L78 Accepts]: Start accepts. Automaton has 1515 states and 2049 transitions. Word has length 267 [2022-02-15 00:43:00,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:43:00,927 INFO L470 AbstractCegarLoop]: Abstraction has 1515 states and 2049 transitions. [2022-02-15 00:43:00,927 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.0) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:43:00,928 INFO L276 IsEmpty]: Start isEmpty. Operand 1515 states and 2049 transitions. [2022-02-15 00:43:00,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2022-02-15 00:43:00,930 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:43:00,930 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 9, 9, 7, 7, 6, 6, 5, 5, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:43:00,930 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-02-15 00:43:00,930 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:43:00,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:43:00,931 INFO L85 PathProgramCache]: Analyzing trace with hash -1568997193, now seen corresponding path program 1 times [2022-02-15 00:43:00,931 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:43:00,931 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829802876] [2022-02-15 00:43:00,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:43:00,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:43:01,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:01,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:43:01,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:01,148 INFO L134 CoverageAnalysis]: Checked inductivity of 828 backedges. 526 proven. 0 refuted. 0 times theorem prover too weak. 302 trivial. 0 not checked. [2022-02-15 00:43:01,149 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:43:01,149 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829802876] [2022-02-15 00:43:01,149 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829802876] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:43:01,149 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:43:01,149 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:43:01,149 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535629586] [2022-02-15 00:43:01,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:43:01,149 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:43:01,149 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:43:01,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:43:01,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:43:01,150 INFO L87 Difference]: Start difference. First operand 1515 states and 2049 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:43:03,158 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:43:03,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:43:03,489 INFO L93 Difference]: Finished difference Result 1696 states and 2291 transitions. [2022-02-15 00:43:03,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:43:03,489 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 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 268 [2022-02-15 00:43:03,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:43:03,491 INFO L225 Difference]: With dead ends: 1696 [2022-02-15 00:43:03,491 INFO L226 Difference]: Without dead ends: 1696 [2022-02-15 00:43:03,491 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 [2022-02-15 00:43:03,493 INFO L933 BasicCegarLoop]: 197 mSDtfsCounter, 28 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 396 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 484 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 396 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-15 00:43:03,493 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 484 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 396 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-15 00:43:03,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1696 states. [2022-02-15 00:43:03,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1696 to 1643. [2022-02-15 00:43:03,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1643 states, 1638 states have (on average 1.355921855921856) internal successors, (2221), 1638 states have internal predecessors, (2221), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:43:03,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1643 states to 1643 states and 2225 transitions. [2022-02-15 00:43:03,505 INFO L78 Accepts]: Start accepts. Automaton has 1643 states and 2225 transitions. Word has length 268 [2022-02-15 00:43:03,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:43:03,505 INFO L470 AbstractCegarLoop]: Abstraction has 1643 states and 2225 transitions. [2022-02-15 00:43:03,505 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:43:03,505 INFO L276 IsEmpty]: Start isEmpty. Operand 1643 states and 2225 transitions. [2022-02-15 00:43:03,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2022-02-15 00:43:03,507 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:43:03,508 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 11, 11, 11, 9, 9, 7, 7, 6, 6, 5, 5, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:43:03,508 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-02-15 00:43:03,508 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:43:03,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:43:03,508 INFO L85 PathProgramCache]: Analyzing trace with hash 206045259, now seen corresponding path program 1 times [2022-02-15 00:43:03,508 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:43:03,508 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057736256] [2022-02-15 00:43:03,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:43:03,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:43:03,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:03,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:43:03,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:03,736 INFO L134 CoverageAnalysis]: Checked inductivity of 930 backedges. 335 proven. 0 refuted. 0 times theorem prover too weak. 595 trivial. 0 not checked. [2022-02-15 00:43:03,737 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:43:03,737 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057736256] [2022-02-15 00:43:03,737 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057736256] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:43:03,737 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:43:03,737 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:43:03,737 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505243026] [2022-02-15 00:43:03,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:43:03,737 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:43:03,737 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:43:03,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:43:03,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:43:03,738 INFO L87 Difference]: Start difference. First operand 1643 states and 2225 transitions. Second operand has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:43:05,746 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:43:06,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:43:06,113 INFO L93 Difference]: Finished difference Result 1901 states and 2578 transitions. [2022-02-15 00:43:06,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:43:06,114 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 277 [2022-02-15 00:43:06,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:43:06,116 INFO L225 Difference]: With dead ends: 1901 [2022-02-15 00:43:06,116 INFO L226 Difference]: Without dead ends: 1901 [2022-02-15 00:43:06,116 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 [2022-02-15 00:43:06,117 INFO L933 BasicCegarLoop]: 100 mSDtfsCounter, 96 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 41 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 00:43:06,117 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 284 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 388 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 00:43:06,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1901 states. [2022-02-15 00:43:06,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1901 to 1675. [2022-02-15 00:43:06,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1675 states, 1670 states have (on average 1.3634730538922155) internal successors, (2277), 1670 states have internal predecessors, (2277), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:43:06,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1675 states to 1675 states and 2281 transitions. [2022-02-15 00:43:06,130 INFO L78 Accepts]: Start accepts. Automaton has 1675 states and 2281 transitions. Word has length 277 [2022-02-15 00:43:06,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:43:06,130 INFO L470 AbstractCegarLoop]: Abstraction has 1675 states and 2281 transitions. [2022-02-15 00:43:06,130 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:43:06,130 INFO L276 IsEmpty]: Start isEmpty. Operand 1675 states and 2281 transitions. [2022-02-15 00:43:06,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2022-02-15 00:43:06,148 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:43:06,148 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 11, 11, 11, 9, 9, 7, 7, 6, 6, 5, 5, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:43:06,149 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-02-15 00:43:06,149 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:43:06,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:43:06,150 INFO L85 PathProgramCache]: Analyzing trace with hash -305666294, now seen corresponding path program 1 times [2022-02-15 00:43:06,150 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:43:06,150 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657864665] [2022-02-15 00:43:06,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:43:06,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:43:06,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:06,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:43:06,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:06,400 INFO L134 CoverageAnalysis]: Checked inductivity of 926 backedges. 331 proven. 0 refuted. 0 times theorem prover too weak. 595 trivial. 0 not checked. [2022-02-15 00:43:06,400 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:43:06,400 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657864665] [2022-02-15 00:43:06,400 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1657864665] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:43:06,400 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:43:06,400 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:43:06,400 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890835770] [2022-02-15 00:43:06,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:43:06,401 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:43:06,401 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:43:06,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:43:06,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:43:06,401 INFO L87 Difference]: Start difference. First operand 1675 states and 2281 transitions. Second operand has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:43:08,410 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:43:08,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:43:08,795 INFO L93 Difference]: Finished difference Result 1944 states and 2647 transitions. [2022-02-15 00:43:08,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:43:08,795 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 277 [2022-02-15 00:43:08,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:43:08,798 INFO L225 Difference]: With dead ends: 1944 [2022-02-15 00:43:08,798 INFO L226 Difference]: Without dead ends: 1944 [2022-02-15 00:43:08,798 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 [2022-02-15 00:43:08,799 INFO L933 BasicCegarLoop]: 209 mSDtfsCounter, 49 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 508 SdHoareTripleChecker+Invalid, 478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 00:43:08,799 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 508 Invalid, 478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 471 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 00:43:08,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1944 states. [2022-02-15 00:43:08,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1944 to 1811. [2022-02-15 00:43:08,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1811 states, 1806 states have (on average 1.3648947951273533) internal successors, (2465), 1806 states have internal predecessors, (2465), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:43:08,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1811 states to 1811 states and 2469 transitions. [2022-02-15 00:43:08,811 INFO L78 Accepts]: Start accepts. Automaton has 1811 states and 2469 transitions. Word has length 277 [2022-02-15 00:43:08,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:43:08,811 INFO L470 AbstractCegarLoop]: Abstraction has 1811 states and 2469 transitions. [2022-02-15 00:43:08,811 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:43:08,812 INFO L276 IsEmpty]: Start isEmpty. Operand 1811 states and 2469 transitions. [2022-02-15 00:43:08,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2022-02-15 00:43:08,814 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:43:08,814 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 11, 11, 11, 9, 9, 7, 7, 6, 6, 5, 5, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:43:08,814 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-02-15 00:43:08,814 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:43:08,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:43:08,814 INFO L85 PathProgramCache]: Analyzing trace with hash -783498806, now seen corresponding path program 1 times [2022-02-15 00:43:08,815 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:43:08,815 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427580928] [2022-02-15 00:43:08,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:43:08,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:43:08,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:09,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:43:09,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:09,085 INFO L134 CoverageAnalysis]: Checked inductivity of 930 backedges. 335 proven. 0 refuted. 0 times theorem prover too weak. 595 trivial. 0 not checked. [2022-02-15 00:43:09,086 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:43:09,086 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427580928] [2022-02-15 00:43:09,086 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427580928] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:43:09,086 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:43:09,086 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:43:09,087 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041617983] [2022-02-15 00:43:09,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:43:09,087 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:43:09,087 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:43:09,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:43:09,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:43:09,088 INFO L87 Difference]: Start difference. First operand 1811 states and 2469 transitions. Second operand has 5 states, 5 states have (on average 27.8) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:43:11,104 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 [] [2022-02-15 00:43:11,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:43:11,434 INFO L93 Difference]: Finished difference Result 2037 states and 2754 transitions. [2022-02-15 00:43:11,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:43:11,434 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 4 states have internal predecessors, (139), 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 278 [2022-02-15 00:43:11,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:43:11,436 INFO L225 Difference]: With dead ends: 2037 [2022-02-15 00:43:11,436 INFO L226 Difference]: Without dead ends: 2037 [2022-02-15 00:43:11,437 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 [2022-02-15 00:43:11,444 INFO L933 BasicCegarLoop]: 100 mSDtfsCounter, 95 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 45 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-15 00:43:11,444 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 284 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 385 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-15 00:43:11,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2037 states. [2022-02-15 00:43:11,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2037 to 1815. [2022-02-15 00:43:11,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1815 states, 1810 states have (on average 1.3596685082872928) internal successors, (2461), 1810 states have internal predecessors, (2461), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:43:11,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1815 states to 1815 states and 2465 transitions. [2022-02-15 00:43:11,459 INFO L78 Accepts]: Start accepts. Automaton has 1815 states and 2465 transitions. Word has length 278 [2022-02-15 00:43:11,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:43:11,460 INFO L470 AbstractCegarLoop]: Abstraction has 1815 states and 2465 transitions. [2022-02-15 00:43:11,460 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:43:11,460 INFO L276 IsEmpty]: Start isEmpty. Operand 1815 states and 2465 transitions. [2022-02-15 00:43:11,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2022-02-15 00:43:11,463 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:43:11,463 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 11, 11, 11, 9, 9, 7, 7, 6, 6, 5, 5, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:43:11,463 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-02-15 00:43:11,463 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:43:11,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:43:11,463 INFO L85 PathProgramCache]: Analyzing trace with hash -1588622552, now seen corresponding path program 1 times [2022-02-15 00:43:11,463 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:43:11,463 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407994599] [2022-02-15 00:43:11,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:43:11,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:43:11,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:11,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:43:11,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:11,704 INFO L134 CoverageAnalysis]: Checked inductivity of 926 backedges. 331 proven. 0 refuted. 0 times theorem prover too weak. 595 trivial. 0 not checked. [2022-02-15 00:43:11,704 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:43:11,704 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407994599] [2022-02-15 00:43:11,704 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407994599] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:43:11,704 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:43:11,704 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:43:11,704 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767258401] [2022-02-15 00:43:11,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:43:11,705 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:43:11,705 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:43:11,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:43:11,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:43:11,705 INFO L87 Difference]: Start difference. First operand 1815 states and 2465 transitions. Second operand has 5 states, 5 states have (on average 27.8) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:43:13,713 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:43:14,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:43:14,077 INFO L93 Difference]: Finished difference Result 2037 states and 2746 transitions. [2022-02-15 00:43:14,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:43:14,077 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 4 states have internal predecessors, (139), 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 278 [2022-02-15 00:43:14,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:43:14,095 INFO L225 Difference]: With dead ends: 2037 [2022-02-15 00:43:14,095 INFO L226 Difference]: Without dead ends: 2037 [2022-02-15 00:43:14,095 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 [2022-02-15 00:43:14,096 INFO L933 BasicCegarLoop]: 102 mSDtfsCounter, 92 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 45 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 00:43:14,096 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [92 Valid, 288 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 387 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 00:43:14,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2037 states. [2022-02-15 00:43:14,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2037 to 1823. [2022-02-15 00:43:14,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1823 states, 1818 states have (on average 1.358085808580858) internal successors, (2469), 1818 states have internal predecessors, (2469), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:43:14,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1823 states to 1823 states and 2473 transitions. [2022-02-15 00:43:14,112 INFO L78 Accepts]: Start accepts. Automaton has 1823 states and 2473 transitions. Word has length 278 [2022-02-15 00:43:14,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:43:14,112 INFO L470 AbstractCegarLoop]: Abstraction has 1823 states and 2473 transitions. [2022-02-15 00:43:14,112 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:43:14,112 INFO L276 IsEmpty]: Start isEmpty. Operand 1823 states and 2473 transitions. [2022-02-15 00:43:14,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2022-02-15 00:43:14,115 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:43:14,115 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 11, 11, 11, 9, 9, 7, 7, 6, 6, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:43:14,115 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-02-15 00:43:14,115 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:43:14,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:43:14,116 INFO L85 PathProgramCache]: Analyzing trace with hash -1231383980, now seen corresponding path program 1 times [2022-02-15 00:43:14,116 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:43:14,116 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278688873] [2022-02-15 00:43:14,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:43:14,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:43:14,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:14,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:43:14,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:14,414 INFO L134 CoverageAnalysis]: Checked inductivity of 923 backedges. 328 proven. 0 refuted. 0 times theorem prover too weak. 595 trivial. 0 not checked. [2022-02-15 00:43:14,414 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:43:14,414 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278688873] [2022-02-15 00:43:14,414 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278688873] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:43:14,414 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:43:14,414 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:43:14,415 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393446318] [2022-02-15 00:43:14,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:43:14,416 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:43:14,416 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:43:14,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:43:14,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:43:14,416 INFO L87 Difference]: Start difference. First operand 1823 states and 2473 transitions. Second operand has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:43:16,426 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:43:16,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:43:16,756 INFO L93 Difference]: Finished difference Result 1928 states and 2611 transitions. [2022-02-15 00:43:16,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:43:16,756 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 282 [2022-02-15 00:43:16,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:43:16,759 INFO L225 Difference]: With dead ends: 1928 [2022-02-15 00:43:16,759 INFO L226 Difference]: Without dead ends: 1928 [2022-02-15 00:43:16,759 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 [2022-02-15 00:43:16,760 INFO L933 BasicCegarLoop]: 203 mSDtfsCounter, 39 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 496 SdHoareTripleChecker+Invalid, 453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 446 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-15 00:43:16,760 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 496 Invalid, 453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 446 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-15 00:43:16,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1928 states. [2022-02-15 00:43:16,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1928 to 1835. [2022-02-15 00:43:16,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1835 states, 1830 states have (on average 1.3557377049180328) internal successors, (2481), 1830 states have internal predecessors, (2481), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:43:16,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1835 states to 1835 states and 2485 transitions. [2022-02-15 00:43:16,775 INFO L78 Accepts]: Start accepts. Automaton has 1835 states and 2485 transitions. Word has length 282 [2022-02-15 00:43:16,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:43:16,776 INFO L470 AbstractCegarLoop]: Abstraction has 1835 states and 2485 transitions. [2022-02-15 00:43:16,776 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:43:16,776 INFO L276 IsEmpty]: Start isEmpty. Operand 1835 states and 2485 transitions. [2022-02-15 00:43:16,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2022-02-15 00:43:16,779 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:43:16,779 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 11, 11, 11, 9, 9, 7, 7, 6, 6, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:43:16,779 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-02-15 00:43:16,779 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:43:16,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:43:16,779 INFO L85 PathProgramCache]: Analyzing trace with hash 576402971, now seen corresponding path program 1 times [2022-02-15 00:43:16,780 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:43:16,780 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046080311] [2022-02-15 00:43:16,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:43:16,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:43:16,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:17,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:43:17,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:17,116 INFO L134 CoverageAnalysis]: Checked inductivity of 923 backedges. 328 proven. 0 refuted. 0 times theorem prover too weak. 595 trivial. 0 not checked. [2022-02-15 00:43:17,117 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:43:17,117 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046080311] [2022-02-15 00:43:17,117 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2046080311] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:43:17,117 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:43:17,117 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:43:17,117 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464088902] [2022-02-15 00:43:17,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:43:17,117 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:43:17,117 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:43:17,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:43:17,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:43:17,118 INFO L87 Difference]: Start difference. First operand 1835 states and 2485 transitions. Second operand has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:43:19,155 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 [] [2022-02-15 00:43:19,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:43:19,508 INFO L93 Difference]: Finished difference Result 1928 states and 2607 transitions. [2022-02-15 00:43:19,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:43:19,508 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 282 [2022-02-15 00:43:19,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:43:19,510 INFO L225 Difference]: With dead ends: 1928 [2022-02-15 00:43:19,511 INFO L226 Difference]: Without dead ends: 1928 [2022-02-15 00:43:19,511 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 [2022-02-15 00:43:19,511 INFO L933 BasicCegarLoop]: 202 mSDtfsCounter, 37 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 494 SdHoareTripleChecker+Invalid, 452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 00:43:19,511 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 494 Invalid, 452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 445 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 00:43:19,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1928 states. [2022-02-15 00:43:19,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1928 to 1839. [2022-02-15 00:43:19,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1839 states, 1834 states have (on average 1.3549618320610688) internal successors, (2485), 1834 states have internal predecessors, (2485), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:43:19,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1839 states to 1839 states and 2489 transitions. [2022-02-15 00:43:19,543 INFO L78 Accepts]: Start accepts. Automaton has 1839 states and 2489 transitions. Word has length 282 [2022-02-15 00:43:19,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:43:19,543 INFO L470 AbstractCegarLoop]: Abstraction has 1839 states and 2489 transitions. [2022-02-15 00:43:19,543 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:43:19,543 INFO L276 IsEmpty]: Start isEmpty. Operand 1839 states and 2489 transitions. [2022-02-15 00:43:19,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2022-02-15 00:43:19,546 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:43:19,546 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 11, 11, 11, 9, 9, 7, 7, 6, 6, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:43:19,546 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-02-15 00:43:19,546 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:43:19,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:43:19,546 INFO L85 PathProgramCache]: Analyzing trace with hash -95162980, now seen corresponding path program 1 times [2022-02-15 00:43:19,546 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:43:19,547 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370649978] [2022-02-15 00:43:19,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:43:19,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:43:19,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:19,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:43:19,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:19,791 INFO L134 CoverageAnalysis]: Checked inductivity of 923 backedges. 328 proven. 0 refuted. 0 times theorem prover too weak. 595 trivial. 0 not checked. [2022-02-15 00:43:19,791 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:43:19,791 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370649978] [2022-02-15 00:43:19,791 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370649978] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:43:19,791 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:43:19,791 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:43:19,791 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812679500] [2022-02-15 00:43:19,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:43:19,792 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:43:19,792 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:43:19,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:43:19,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:43:19,792 INFO L87 Difference]: Start difference. First operand 1839 states and 2489 transitions. Second operand has 5 states, 5 states have (on average 28.8) internal successors, (144), 4 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:43:21,801 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:43:22,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:43:22,179 INFO L93 Difference]: Finished difference Result 1920 states and 2595 transitions. [2022-02-15 00:43:22,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:43:22,180 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 4 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 283 [2022-02-15 00:43:22,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:43:22,183 INFO L225 Difference]: With dead ends: 1920 [2022-02-15 00:43:22,183 INFO L226 Difference]: Without dead ends: 1920 [2022-02-15 00:43:22,183 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 [2022-02-15 00:43:22,183 INFO L933 BasicCegarLoop]: 200 mSDtfsCounter, 34 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 439 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 490 SdHoareTripleChecker+Invalid, 446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 439 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 00:43:22,184 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 490 Invalid, 446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 439 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 00:43:22,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1920 states. [2022-02-15 00:43:22,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1920 to 1843. [2022-02-15 00:43:22,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1843 states, 1838 states have (on average 1.3541893362350381) internal successors, (2489), 1838 states have internal predecessors, (2489), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:43:22,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1843 states to 1843 states and 2493 transitions. [2022-02-15 00:43:22,199 INFO L78 Accepts]: Start accepts. Automaton has 1843 states and 2493 transitions. Word has length 283 [2022-02-15 00:43:22,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:43:22,199 INFO L470 AbstractCegarLoop]: Abstraction has 1843 states and 2493 transitions. [2022-02-15 00:43:22,199 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 4 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:43:22,199 INFO L276 IsEmpty]: Start isEmpty. Operand 1843 states and 2493 transitions. [2022-02-15 00:43:22,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2022-02-15 00:43:22,202 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:43:22,202 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 11, 11, 11, 9, 9, 7, 7, 6, 6, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:43:22,202 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-02-15 00:43:22,202 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:43:22,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:43:22,202 INFO L85 PathProgramCache]: Analyzing trace with hash 1678126882, now seen corresponding path program 1 times [2022-02-15 00:43:22,203 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:43:22,203 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979066204] [2022-02-15 00:43:22,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:43:22,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:43:22,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:22,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:43:22,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:22,489 INFO L134 CoverageAnalysis]: Checked inductivity of 923 backedges. 328 proven. 0 refuted. 0 times theorem prover too weak. 595 trivial. 0 not checked. [2022-02-15 00:43:22,489 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:43:22,489 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979066204] [2022-02-15 00:43:22,489 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979066204] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:43:22,490 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:43:22,490 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:43:22,490 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885424125] [2022-02-15 00:43:22,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:43:22,493 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:43:22,493 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:43:22,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:43:22,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:43:22,494 INFO L87 Difference]: Start difference. First operand 1843 states and 2493 transitions. Second operand has 5 states, 5 states have (on average 29.0) internal successors, (145), 4 states have internal predecessors, (145), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:43:24,503 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:43:24,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:43:24,830 INFO L93 Difference]: Finished difference Result 1900 states and 2563 transitions. [2022-02-15 00:43:24,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:43:24,830 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.0) internal successors, (145), 4 states have internal predecessors, (145), 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 284 [2022-02-15 00:43:24,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:43:24,833 INFO L225 Difference]: With dead ends: 1900 [2022-02-15 00:43:24,833 INFO L226 Difference]: Without dead ends: 1900 [2022-02-15 00:43:24,833 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 [2022-02-15 00:43:24,833 INFO L933 BasicCegarLoop]: 196 mSDtfsCounter, 28 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 422 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 422 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-15 00:43:24,833 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 482 Invalid, 427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 422 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-15 00:43:24,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1900 states. [2022-02-15 00:43:24,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1900 to 1847. [2022-02-15 00:43:24,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1847 states, 1842 states have (on average 1.3534201954397393) internal successors, (2493), 1842 states have internal predecessors, (2493), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:43:24,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1847 states to 1847 states and 2497 transitions. [2022-02-15 00:43:24,847 INFO L78 Accepts]: Start accepts. Automaton has 1847 states and 2497 transitions. Word has length 284 [2022-02-15 00:43:24,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:43:24,848 INFO L470 AbstractCegarLoop]: Abstraction has 1847 states and 2497 transitions. [2022-02-15 00:43:24,848 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.0) internal successors, (145), 4 states have internal predecessors, (145), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:43:24,848 INFO L276 IsEmpty]: Start isEmpty. Operand 1847 states and 2497 transitions. [2022-02-15 00:43:24,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2022-02-15 00:43:24,850 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:43:24,850 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 12, 12, 12, 10, 10, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:43:24,851 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-02-15 00:43:24,851 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:43:24,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:43:24,851 INFO L85 PathProgramCache]: Analyzing trace with hash 866816745, now seen corresponding path program 1 times [2022-02-15 00:43:24,851 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:43:24,851 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905397978] [2022-02-15 00:43:24,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:43:24,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:43:25,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:25,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:43:25,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:25,290 INFO L134 CoverageAnalysis]: Checked inductivity of 1076 backedges. 624 proven. 0 refuted. 0 times theorem prover too weak. 452 trivial. 0 not checked. [2022-02-15 00:43:25,290 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:43:25,290 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905397978] [2022-02-15 00:43:25,290 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905397978] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:43:25,290 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:43:25,290 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:43:25,290 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817637000] [2022-02-15 00:43:25,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:43:25,291 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:43:25,291 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:43:25,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:43:25,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:43:25,291 INFO L87 Difference]: Start difference. First operand 1847 states and 2497 transitions. Second operand has 5 states, 5 states have (on average 27.2) internal successors, (136), 4 states have internal predecessors, (136), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:43:27,300 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:43:27,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:43:27,635 INFO L93 Difference]: Finished difference Result 2025 states and 2718 transitions. [2022-02-15 00:43:27,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:43:27,636 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.2) internal successors, (136), 4 states have internal predecessors, (136), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 284 [2022-02-15 00:43:27,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:43:27,638 INFO L225 Difference]: With dead ends: 2025 [2022-02-15 00:43:27,639 INFO L226 Difference]: Without dead ends: 2025 [2022-02-15 00:43:27,639 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 [2022-02-15 00:43:27,639 INFO L933 BasicCegarLoop]: 106 mSDtfsCounter, 106 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 39 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-15 00:43:27,639 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 296 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 377 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-15 00:43:27,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2025 states. [2022-02-15 00:43:27,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2025 to 1847. [2022-02-15 00:43:27,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1847 states, 1842 states have (on average 1.3490770901194353) internal successors, (2485), 1842 states have internal predecessors, (2485), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:43:27,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1847 states to 1847 states and 2489 transitions. [2022-02-15 00:43:27,655 INFO L78 Accepts]: Start accepts. Automaton has 1847 states and 2489 transitions. Word has length 284 [2022-02-15 00:43:27,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:43:27,655 INFO L470 AbstractCegarLoop]: Abstraction has 1847 states and 2489 transitions. [2022-02-15 00:43:27,656 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.2) internal successors, (136), 4 states have internal predecessors, (136), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:43:27,656 INFO L276 IsEmpty]: Start isEmpty. Operand 1847 states and 2489 transitions. [2022-02-15 00:43:27,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2022-02-15 00:43:27,658 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:43:27,658 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 11, 11, 9, 9, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:43:27,658 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-02-15 00:43:27,658 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:43:27,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:43:27,659 INFO L85 PathProgramCache]: Analyzing trace with hash -2074742642, now seen corresponding path program 1 times [2022-02-15 00:43:27,659 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:43:27,659 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122995872] [2022-02-15 00:43:27,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:43:27,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:43:29,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:30,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:43:30,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:30,191 INFO L134 CoverageAnalysis]: Checked inductivity of 1171 backedges. 546 proven. 238 refuted. 0 times theorem prover too weak. 387 trivial. 0 not checked. [2022-02-15 00:43:30,191 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:43:30,191 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122995872] [2022-02-15 00:43:30,191 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122995872] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-15 00:43:30,191 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1354672107] [2022-02-15 00:43:30,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:43:30,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-15 00:43:30,192 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-15 00:43:30,193 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-15 00:43:30,217 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-02-15 00:43:32,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:32,575 INFO L263 TraceCheckSpWp]: Trace formula consists of 2407 conjuncts, 272 conjunts are in the unsatisfiable core [2022-02-15 00:43:32,592 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-15 00:44:15,771 INFO L244 Elim1Store]: Index analysis took 4674 ms