/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_srvr.blast.06.i.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-6c470ae [2022-02-15 00:43:15,013 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-15 00:43:15,024 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-15 00:43:15,060 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-15 00:43:15,061 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-15 00:43:15,061 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-15 00:43:15,062 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-15 00:43:15,063 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-15 00:43:15,065 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-15 00:43:15,065 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-15 00:43:15,066 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-15 00:43:15,067 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-15 00:43:15,067 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-15 00:43:15,067 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-15 00:43:15,068 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-15 00:43:15,069 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-15 00:43:15,069 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-15 00:43:15,070 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-15 00:43:15,077 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-15 00:43:15,081 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-15 00:43:15,081 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-15 00:43:15,082 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-15 00:43:15,083 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-15 00:43:15,084 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-15 00:43:15,090 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-15 00:43:15,090 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-15 00:43:15,090 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-15 00:43:15,091 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-15 00:43:15,091 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-15 00:43:15,092 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-15 00:43:15,092 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-15 00:43:15,092 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-15 00:43:15,093 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-15 00:43:15,093 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-15 00:43:15,094 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-15 00:43:15,094 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-15 00:43:15,094 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-15 00:43:15,095 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-15 00:43:15,095 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-15 00:43:15,097 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-15 00:43:15,098 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-15 00:43:15,098 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-02-15 00:43:15,106 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-15 00:43:15,106 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-15 00:43:15,107 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-15 00:43:15,107 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-15 00:43:15,107 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-15 00:43:15,107 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-15 00:43:15,107 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-15 00:43:15,108 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-15 00:43:15,108 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-15 00:43:15,108 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-15 00:43:15,108 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-15 00:43:15,108 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-15 00:43:15,108 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-15 00:43:15,108 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-15 00:43:15,108 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-15 00:43:15,109 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-15 00:43:15,109 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-15 00:43:15,109 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-15 00:43:15,109 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-15 00:43:15,109 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-15 00:43:15,109 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-15 00:43:15,110 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-15 00:43:15,110 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-02-15 00:43:15,271 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-15 00:43:15,290 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-15 00:43:15,293 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-15 00:43:15,294 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-15 00:43:15,307 INFO L275 PluginConnector]: CDTParser initialized [2022-02-15 00:43:15,309 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.06.i.cil-1.c [2022-02-15 00:43:15,375 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9595d9f8f/627d33ffce3148039d262bee190aef86/FLAG9356fc021 [2022-02-15 00:43:15,804 INFO L306 CDTParser]: Found 1 translation units. [2022-02-15 00:43:15,804 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.06.i.cil-1.c [2022-02-15 00:43:15,819 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9595d9f8f/627d33ffce3148039d262bee190aef86/FLAG9356fc021 [2022-02-15 00:43:15,834 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9595d9f8f/627d33ffce3148039d262bee190aef86 [2022-02-15 00:43:15,836 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-15 00:43:15,838 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-15 00:43:15,841 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-15 00:43:15,841 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-15 00:43:15,843 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-15 00:43:15,844 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 12:43:15" (1/1) ... [2022-02-15 00:43:15,845 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30b96bc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:43:15, skipping insertion in model container [2022-02-15 00:43:15,845 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 12:43:15" (1/1) ... [2022-02-15 00:43:15,849 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-15 00:43:15,893 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-15 00:43:16,253 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_srvr.blast.06.i.cil-1.c[78520,78533] [2022-02-15 00:43:16,260 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-15 00:43:16,268 INFO L203 MainTranslator]: Completed pre-run [2022-02-15 00:43:16,366 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_srvr.blast.06.i.cil-1.c[78520,78533] [2022-02-15 00:43:16,374 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-15 00:43:16,392 INFO L208 MainTranslator]: Completed translation [2022-02-15 00:43:16,393 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:43:16 WrapperNode [2022-02-15 00:43:16,393 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-15 00:43:16,393 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-15 00:43:16,394 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-15 00:43:16,394 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-15 00:43:16,402 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:43:16" (1/1) ... [2022-02-15 00:43:16,402 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:43:16" (1/1) ... [2022-02-15 00:43:16,434 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:43:16" (1/1) ... [2022-02-15 00:43:16,434 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:43:16" (1/1) ... [2022-02-15 00:43:16,483 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:43:16" (1/1) ... [2022-02-15 00:43:16,488 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:43:16" (1/1) ... [2022-02-15 00:43:16,490 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:43:16" (1/1) ... [2022-02-15 00:43:16,508 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-15 00:43:16,509 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-15 00:43:16,509 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-15 00:43:16,509 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-15 00:43:16,512 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:43:16" (1/1) ... [2022-02-15 00:43:16,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-15 00:43:16,525 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-15 00:43:16,535 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 00:43:16,544 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 00:43:16,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-02-15 00:43:16,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-15 00:43:16,567 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-02-15 00:43:16,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-02-15 00:43:16,567 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-02-15 00:43:16,568 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-02-15 00:43:16,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-02-15 00:43:16,568 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-02-15 00:43:16,568 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-02-15 00:43:16,568 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-02-15 00:43:16,568 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-02-15 00:43:16,568 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-02-15 00:43:16,569 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-02-15 00:43:16,569 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-15 00:43:16,569 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-02-15 00:43:16,569 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-02-15 00:43:16,571 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-02-15 00:43:16,571 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-02-15 00:43:16,571 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-02-15 00:43:16,571 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-02-15 00:43:16,571 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-02-15 00:43:16,571 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-02-15 00:43:16,571 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-02-15 00:43:16,571 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-02-15 00:43:16,571 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-02-15 00:43:16,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-02-15 00:43:16,572 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-02-15 00:43:16,572 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-02-15 00:43:16,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-15 00:43:16,572 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-02-15 00:43:16,572 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-15 00:43:16,572 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-02-15 00:43:16,572 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-02-15 00:43:16,572 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-02-15 00:43:16,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-15 00:43:16,572 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-15 00:43:16,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-02-15 00:43:16,573 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-02-15 00:43:16,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-02-15 00:43:16,573 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-02-15 00:43:16,573 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-15 00:43:16,690 INFO L234 CfgBuilder]: Building ICFG [2022-02-15 00:43:16,691 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-15 00:43:17,344 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-02-15 00:43:17,702 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-02-15 00:43:17,702 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-02-15 00:43:17,712 INFO L275 CfgBuilder]: Performing block encoding [2022-02-15 00:43:17,719 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-15 00:43:17,719 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-02-15 00:43:17,721 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 12:43:17 BoogieIcfgContainer [2022-02-15 00:43:17,721 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-15 00:43:17,722 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-02-15 00:43:17,722 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-02-15 00:43:17,723 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-02-15 00:43:17,724 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 12:43:17" (1/1) ... [2022-02-15 00:43:17,804 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 15.02 12:43:17 BasicIcfg [2022-02-15 00:43:17,804 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-02-15 00:43:17,805 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-15 00:43:17,806 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-15 00:43:17,807 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-15 00:43:17,808 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.02 12:43:15" (1/4) ... [2022-02-15 00:43:17,808 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e12cc5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 12:43:17, skipping insertion in model container [2022-02-15 00:43:17,808 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:43:16" (2/4) ... [2022-02-15 00:43:17,808 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e12cc5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 12:43:17, skipping insertion in model container [2022-02-15 00:43:17,808 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 12:43:17" (3/4) ... [2022-02-15 00:43:17,809 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e12cc5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.02 12:43:17, skipping insertion in model container [2022-02-15 00:43:17,809 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 15.02 12:43:17" (4/4) ... [2022-02-15 00:43:17,809 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.06.i.cil-1.cJordan [2022-02-15 00:43:17,843 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-02-15 00:43:17,843 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-15 00:43:17,884 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-15 00:43:17,889 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 00:43:17,889 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-15 00:43:17,914 INFO L276 IsEmpty]: Start isEmpty. Operand has 169 states, 161 states have (on average 1.7267080745341614) internal successors, (278), 162 states have internal predecessors, (278), 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 00:43:17,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-02-15 00:43:17,921 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:43:17,922 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:43:17,922 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:43:17,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:43:17,926 INFO L85 PathProgramCache]: Analyzing trace with hash -1558367979, now seen corresponding path program 1 times [2022-02-15 00:43:17,934 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:43:17,934 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133939122] [2022-02-15 00:43:17,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:43:17,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:43:18,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:18,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:43:18,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:18,357 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 00:43:18,358 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:43:18,358 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133939122] [2022-02-15 00:43:18,358 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133939122] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:43:18,359 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:43:18,359 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:43:18,360 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806971643] [2022-02-15 00:43:18,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:43:18,368 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:43:18,368 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:43:18,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:43:18,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:43:18,392 INFO L87 Difference]: Start difference. First operand has 169 states, 161 states have (on average 1.7267080745341614) internal successors, (278), 162 states have internal predecessors, (278), 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 9.4) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (3), 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 00:43:19,795 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:43:21,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:43:21,289 INFO L93 Difference]: Finished difference Result 307 states and 517 transitions. [2022-02-15 00:43:21,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:43:21,293 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (3), 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 51 [2022-02-15 00:43:21,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:43:21,302 INFO L225 Difference]: With dead ends: 307 [2022-02-15 00:43:21,302 INFO L226 Difference]: Without dead ends: 281 [2022-02-15 00:43:21,302 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 00:43:21,304 INFO L933 BasicCegarLoop]: 180 mSDtfsCounter, 172 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 558 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 529 SdHoareTripleChecker+Invalid, 621 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 558 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-02-15 00:43:21,305 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [172 Valid, 529 Invalid, 621 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 558 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-02-15 00:43:21,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2022-02-15 00:43:21,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 193. [2022-02-15 00:43:21,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 188 states have (on average 1.627659574468085) internal successors, (306), 188 states have internal predecessors, (306), 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 00:43:21,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 310 transitions. [2022-02-15 00:43:21,363 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 310 transitions. Word has length 51 [2022-02-15 00:43:21,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:43:21,364 INFO L470 AbstractCegarLoop]: Abstraction has 193 states and 310 transitions. [2022-02-15 00:43:21,364 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (3), 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 00:43:21,365 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 310 transitions. [2022-02-15 00:43:21,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-02-15 00:43:21,368 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:43:21,368 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:43:21,369 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-15 00:43:21,369 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:43:21,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:43:21,369 INFO L85 PathProgramCache]: Analyzing trace with hash 1445274745, now seen corresponding path program 1 times [2022-02-15 00:43:21,369 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:43:21,370 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365409328] [2022-02-15 00:43:21,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:43:21,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:43:21,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:21,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:43:21,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:21,558 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 00:43:21,558 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:43:21,559 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365409328] [2022-02-15 00:43:21,559 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365409328] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:43:21,559 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:43:21,559 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:43:21,560 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433533910] [2022-02-15 00:43:21,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:43:21,563 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:43:21,564 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:43:21,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:43:21,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:43:21,569 INFO L87 Difference]: Start difference. First operand 193 states and 310 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (3), 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 00:43:22,584 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:43:24,602 WARN L534 Checker$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 00:43:25,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:43:25,866 INFO L93 Difference]: Finished difference Result 221 states and 350 transitions. [2022-02-15 00:43:25,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:43:25,866 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (3), 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 52 [2022-02-15 00:43:25,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:43:25,868 INFO L225 Difference]: With dead ends: 221 [2022-02-15 00:43:25,868 INFO L226 Difference]: Without dead ends: 221 [2022-02-15 00:43:25,868 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 00:43:25,869 INFO L933 BasicCegarLoop]: 208 mSDtfsCounter, 22 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 547 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-02-15 00:43:25,869 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 547 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 387 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2022-02-15 00:43:25,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2022-02-15 00:43:25,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 204. [2022-02-15 00:43:25,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 199 states have (on average 1.6331658291457287) internal successors, (325), 199 states have internal predecessors, (325), 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 00:43:25,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 329 transitions. [2022-02-15 00:43:25,875 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 329 transitions. Word has length 52 [2022-02-15 00:43:25,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:43:25,875 INFO L470 AbstractCegarLoop]: Abstraction has 204 states and 329 transitions. [2022-02-15 00:43:25,876 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (3), 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 00:43:25,876 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 329 transitions. [2022-02-15 00:43:25,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-02-15 00:43:25,877 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:43:25,877 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:43:25,877 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-15 00:43:25,877 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:43:25,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:43:25,878 INFO L85 PathProgramCache]: Analyzing trace with hash 326764794, now seen corresponding path program 1 times [2022-02-15 00:43:25,878 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:43:25,878 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622950557] [2022-02-15 00:43:25,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:43:25,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:43:25,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:25,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:43:25,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:25,976 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 00:43:25,977 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:43:25,977 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622950557] [2022-02-15 00:43:25,977 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1622950557] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:43:25,977 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:43:25,977 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:43:25,977 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474287876] [2022-02-15 00:43:25,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:43:25,978 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:43:25,978 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:43:25,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:43:25,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:43:25,978 INFO L87 Difference]: Start difference. First operand 204 states and 329 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:43:27,332 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:43:28,898 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:43:30,918 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 00:43:32,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:43:32,208 INFO L93 Difference]: Finished difference Result 221 states and 349 transitions. [2022-02-15 00:43:32,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:43:32,209 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2022-02-15 00:43:32,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:43:32,210 INFO L225 Difference]: With dead ends: 221 [2022-02-15 00:43:32,210 INFO L226 Difference]: Without dead ends: 221 [2022-02-15 00:43:32,210 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 00:43:32,211 INFO L933 BasicCegarLoop]: 209 mSDtfsCounter, 24 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 549 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-02-15 00:43:32,211 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 549 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 385 Invalid, 1 Unknown, 0 Unchecked, 6.2s Time] [2022-02-15 00:43:32,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2022-02-15 00:43:32,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 204. [2022-02-15 00:43:32,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 199 states have (on average 1.6281407035175879) internal successors, (324), 199 states have internal predecessors, (324), 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 00:43:32,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 328 transitions. [2022-02-15 00:43:32,217 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 328 transitions. Word has length 65 [2022-02-15 00:43:32,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:43:32,217 INFO L470 AbstractCegarLoop]: Abstraction has 204 states and 328 transitions. [2022-02-15 00:43:32,217 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:43:32,217 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 328 transitions. [2022-02-15 00:43:32,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-02-15 00:43:32,219 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:43:32,219 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, 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 00:43:32,219 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-15 00:43:32,219 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:43:32,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:43:32,219 INFO L85 PathProgramCache]: Analyzing trace with hash 1636949139, now seen corresponding path program 1 times [2022-02-15 00:43:32,219 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:43:32,220 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933921348] [2022-02-15 00:43:32,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:43:32,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:43:32,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:32,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:43:32,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:32,315 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 00:43:32,315 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:43:32,315 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933921348] [2022-02-15 00:43:32,316 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933921348] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:43:32,316 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:43:32,316 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:43:32,316 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264714691] [2022-02-15 00:43:32,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:43:32,316 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:43:32,316 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:43:32,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:43:32,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:43:32,317 INFO L87 Difference]: Start difference. First operand 204 states and 328 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 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 00:43:34,331 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 00:43:34,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:43:34,660 INFO L93 Difference]: Finished difference Result 220 states and 347 transitions. [2022-02-15 00:43:34,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:43:34,660 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 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 66 [2022-02-15 00:43:34,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:43:34,661 INFO L225 Difference]: With dead ends: 220 [2022-02-15 00:43:34,661 INFO L226 Difference]: Without dead ends: 220 [2022-02-15 00:43:34,661 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 00:43:34,662 INFO L933 BasicCegarLoop]: 210 mSDtfsCounter, 28 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 551 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-15 00:43:34,662 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 551 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 380 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-15 00:43:34,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2022-02-15 00:43:34,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 204. [2022-02-15 00:43:34,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 199 states have (on average 1.6231155778894473) internal successors, (323), 199 states have internal predecessors, (323), 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 00:43:34,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 327 transitions. [2022-02-15 00:43:34,667 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 327 transitions. Word has length 66 [2022-02-15 00:43:34,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:43:34,667 INFO L470 AbstractCegarLoop]: Abstraction has 204 states and 327 transitions. [2022-02-15 00:43:34,667 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 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 00:43:34,667 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 327 transitions. [2022-02-15 00:43:34,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-02-15 00:43:34,668 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:43:34,668 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:43:34,668 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-15 00:43:34,668 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:43:34,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:43:34,669 INFO L85 PathProgramCache]: Analyzing trace with hash 1388649651, now seen corresponding path program 1 times [2022-02-15 00:43:34,669 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:43:34,669 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082179110] [2022-02-15 00:43:34,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:43:34,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:43:34,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:34,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:43:34,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:34,783 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 00:43:34,783 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:43:34,783 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082179110] [2022-02-15 00:43:34,783 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082179110] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:43:34,783 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:43:34,783 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:43:34,784 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598087429] [2022-02-15 00:43:34,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:43:34,784 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:43:34,784 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:43:34,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:43:34,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:43:34,785 INFO L87 Difference]: Start difference. First operand 204 states and 327 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 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 00:43:37,439 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:43:39,442 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:43:39,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:43:39,936 INFO L93 Difference]: Finished difference Result 331 states and 526 transitions. [2022-02-15 00:43:39,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:43:39,936 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 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 66 [2022-02-15 00:43:39,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:43:39,938 INFO L225 Difference]: With dead ends: 331 [2022-02-15 00:43:39,938 INFO L226 Difference]: Without dead ends: 331 [2022-02-15 00:43:39,938 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 00:43:39,938 INFO L933 BasicCegarLoop]: 140 mSDtfsCounter, 167 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 499 mSolverCounterSat, 64 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 499 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-02-15 00:43:39,939 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [167 Valid, 410 Invalid, 564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 499 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2022-02-15 00:43:39,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2022-02-15 00:43:39,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 216. [2022-02-15 00:43:39,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 211 states have (on average 1.6066350710900474) internal successors, (339), 211 states have internal predecessors, (339), 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 00:43:39,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 343 transitions. [2022-02-15 00:43:39,957 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 343 transitions. Word has length 66 [2022-02-15 00:43:39,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:43:39,957 INFO L470 AbstractCegarLoop]: Abstraction has 216 states and 343 transitions. [2022-02-15 00:43:39,957 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 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 00:43:39,957 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 343 transitions. [2022-02-15 00:43:39,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-02-15 00:43:39,958 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:43:39,958 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:43:39,958 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-15 00:43:39,958 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:43:39,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:43:39,958 INFO L85 PathProgramCache]: Analyzing trace with hash -931919629, now seen corresponding path program 1 times [2022-02-15 00:43:39,959 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:43:39,959 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699659179] [2022-02-15 00:43:39,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:43:39,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:43:40,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:40,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:43:40,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:40,119 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 00:43:40,120 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:43:40,121 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699659179] [2022-02-15 00:43:40,121 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699659179] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:43:40,121 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:43:40,121 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:43:40,123 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450921908] [2022-02-15 00:43:40,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:43:40,123 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:43:40,124 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:43:40,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:43:40,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:43:40,125 INFO L87 Difference]: Start difference. First operand 216 states and 343 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 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 00:43:41,367 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:43:42,699 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:43:44,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:43:44,070 INFO L93 Difference]: Finished difference Result 331 states and 523 transitions. [2022-02-15 00:43:44,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:43:44,071 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 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 66 [2022-02-15 00:43:44,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:43:44,072 INFO L225 Difference]: With dead ends: 331 [2022-02-15 00:43:44,072 INFO L226 Difference]: Without dead ends: 331 [2022-02-15 00:43:44,072 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 00:43:44,073 INFO L933 BasicCegarLoop]: 140 mSDtfsCounter, 161 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 500 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 500 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-02-15 00:43:44,073 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 410 Invalid, 564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 500 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-02-15 00:43:44,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2022-02-15 00:43:44,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 221. [2022-02-15 00:43:44,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 216 states have (on average 1.6018518518518519) internal successors, (346), 216 states have internal predecessors, (346), 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 00:43:44,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 350 transitions. [2022-02-15 00:43:44,078 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 350 transitions. Word has length 66 [2022-02-15 00:43:44,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:43:44,078 INFO L470 AbstractCegarLoop]: Abstraction has 221 states and 350 transitions. [2022-02-15 00:43:44,078 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 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 00:43:44,078 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 350 transitions. [2022-02-15 00:43:44,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-02-15 00:43:44,079 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:43:44,079 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:43:44,079 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-02-15 00:43:44,079 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:43:44,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:43:44,079 INFO L85 PathProgramCache]: Analyzing trace with hash -707330029, now seen corresponding path program 1 times [2022-02-15 00:43:44,080 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:43:44,080 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279390033] [2022-02-15 00:43:44,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:43:44,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:43:44,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:44,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:43:44,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:44,184 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 00:43:44,185 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:43:44,185 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279390033] [2022-02-15 00:43:44,185 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279390033] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:43:44,185 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:43:44,185 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:43:44,185 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24017123] [2022-02-15 00:43:44,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:43:44,186 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:43:44,186 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:43:44,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:43:44,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:43:44,186 INFO L87 Difference]: Start difference. First operand 221 states and 350 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 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 00:43:46,199 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 00:43:46,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:43:46,667 INFO L93 Difference]: Finished difference Result 330 states and 519 transitions. [2022-02-15 00:43:46,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:43:46,668 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 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 66 [2022-02-15 00:43:46,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:43:46,669 INFO L225 Difference]: With dead ends: 330 [2022-02-15 00:43:46,669 INFO L226 Difference]: Without dead ends: 330 [2022-02-15 00:43:46,669 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 00:43:46,670 INFO L933 BasicCegarLoop]: 141 mSDtfsCounter, 159 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-02-15 00:43:46,670 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 412 Invalid, 558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 494 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-15 00:43:46,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2022-02-15 00:43:46,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 222. [2022-02-15 00:43:46,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 217 states have (on average 1.5898617511520738) internal successors, (345), 217 states have internal predecessors, (345), 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 00:43:46,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 349 transitions. [2022-02-15 00:43:46,675 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 349 transitions. Word has length 66 [2022-02-15 00:43:46,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:43:46,675 INFO L470 AbstractCegarLoop]: Abstraction has 222 states and 349 transitions. [2022-02-15 00:43:46,675 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 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 00:43:46,675 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 349 transitions. [2022-02-15 00:43:46,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-02-15 00:43:46,676 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:43:46,676 INFO L514 BasicCegarLoop]: trace histogram [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 00:43:46,676 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-02-15 00:43:46,676 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:43:46,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:43:46,677 INFO L85 PathProgramCache]: Analyzing trace with hash 175120026, now seen corresponding path program 1 times [2022-02-15 00:43:46,677 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:43:46,677 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550552951] [2022-02-15 00:43:46,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:43:46,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:43:46,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:46,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:43:46,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:46,758 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 00:43:46,758 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:43:46,758 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550552951] [2022-02-15 00:43:46,758 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550552951] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:43:46,758 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:43:46,758 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:43:46,758 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22932674] [2022-02-15 00:43:46,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:43:46,759 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:43:46,759 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:43:46,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:43:46,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:43:46,759 INFO L87 Difference]: Start difference. First operand 222 states and 349 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:43:47,765 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:43:49,783 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:43:52,339 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:43:52,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:43:52,795 INFO L93 Difference]: Finished difference Result 330 states and 516 transitions. [2022-02-15 00:43:52,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:43:52,795 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 67 [2022-02-15 00:43:52,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:43:52,796 INFO L225 Difference]: With dead ends: 330 [2022-02-15 00:43:52,796 INFO L226 Difference]: Without dead ends: 330 [2022-02-15 00:43:52,796 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 00:43:52,797 INFO L933 BasicCegarLoop]: 141 mSDtfsCounter, 163 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 561 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-02-15 00:43:52,797 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 412 Invalid, 561 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 497 Invalid, 1 Unknown, 0 Unchecked, 6.0s Time] [2022-02-15 00:43:52,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2022-02-15 00:43:52,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 222. [2022-02-15 00:43:52,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 217 states have (on average 1.576036866359447) internal successors, (342), 217 states have internal predecessors, (342), 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 00:43:52,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 346 transitions. [2022-02-15 00:43:52,801 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 346 transitions. Word has length 67 [2022-02-15 00:43:52,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:43:52,801 INFO L470 AbstractCegarLoop]: Abstraction has 222 states and 346 transitions. [2022-02-15 00:43:52,801 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:43:52,801 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 346 transitions. [2022-02-15 00:43:52,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-02-15 00:43:52,802 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:43:52,802 INFO L514 BasicCegarLoop]: trace histogram [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 00:43:52,802 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-02-15 00:43:52,802 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:43:52,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:43:52,803 INFO L85 PathProgramCache]: Analyzing trace with hash 1179369879, now seen corresponding path program 1 times [2022-02-15 00:43:52,803 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:43:52,803 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126465972] [2022-02-15 00:43:52,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:43:52,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:43:52,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:52,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:43:52,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:52,886 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 00:43:52,886 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:43:52,886 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126465972] [2022-02-15 00:43:52,886 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126465972] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:43:52,886 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:43:52,887 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:43:52,887 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405233255] [2022-02-15 00:43:52,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:43:52,887 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:43:52,887 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:43:52,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:43:52,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:43:52,888 INFO L87 Difference]: Start difference. First operand 222 states and 346 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 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 00:43:54,207 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:43:56,721 WARN L534 Checker$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 00:43:58,200 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:43:58,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:43:58,567 INFO L93 Difference]: Finished difference Result 235 states and 362 transitions. [2022-02-15 00:43:58,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:43:58,568 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 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 68 [2022-02-15 00:43:58,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:43:58,569 INFO L225 Difference]: With dead ends: 235 [2022-02-15 00:43:58,569 INFO L226 Difference]: Without dead ends: 235 [2022-02-15 00:43:58,569 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 00:43:58,569 INFO L933 BasicCegarLoop]: 213 mSDtfsCounter, 20 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-02-15 00:43:58,570 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 557 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 377 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2022-02-15 00:43:58,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2022-02-15 00:43:58,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 222. [2022-02-15 00:43:58,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 217 states have (on average 1.5714285714285714) internal successors, (341), 217 states have internal predecessors, (341), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:43:58,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 345 transitions. [2022-02-15 00:43:58,575 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 345 transitions. Word has length 68 [2022-02-15 00:43:58,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:43:58,575 INFO L470 AbstractCegarLoop]: Abstraction has 222 states and 345 transitions. [2022-02-15 00:43:58,575 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 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 00:43:58,575 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 345 transitions. [2022-02-15 00:43:58,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-02-15 00:43:58,576 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:43:58,576 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:43:58,576 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-02-15 00:43:58,576 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:43:58,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:43:58,576 INFO L85 PathProgramCache]: Analyzing trace with hash -454362324, now seen corresponding path program 1 times [2022-02-15 00:43:58,576 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:43:58,576 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614602922] [2022-02-15 00:43:58,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:43:58,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:43:58,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:58,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:43:58,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:58,674 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 00:43:58,674 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:43:58,674 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614602922] [2022-02-15 00:43:58,674 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614602922] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:43:58,674 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:43:58,674 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:43:58,675 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264594206] [2022-02-15 00:43:58,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:43:58,675 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:43:58,675 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:43:58,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:43:58,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:43:58,675 INFO L87 Difference]: Start difference. First operand 222 states and 345 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:44:00,438 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:44:02,462 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:44:04,485 WARN L534 Checker$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 00:44:06,519 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 00:44:07,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:44:07,111 INFO L93 Difference]: Finished difference Result 330 states and 514 transitions. [2022-02-15 00:44:07,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:44:07,112 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 69 [2022-02-15 00:44:07,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:44:07,114 INFO L225 Difference]: With dead ends: 330 [2022-02-15 00:44:07,114 INFO L226 Difference]: Without dead ends: 330 [2022-02-15 00:44:07,114 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 00:44:07,115 INFO L933 BasicCegarLoop]: 154 mSDtfsCounter, 136 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 508 mSolverCounterSat, 61 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 508 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2022-02-15 00:44:07,116 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 438 Invalid, 572 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 508 Invalid, 3 Unknown, 0 Unchecked, 8.4s Time] [2022-02-15 00:44:07,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2022-02-15 00:44:07,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 244. [2022-02-15 00:44:07,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 239 states have (on average 1.606694560669456) internal successors, (384), 239 states have internal predecessors, (384), 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 00:44:07,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 388 transitions. [2022-02-15 00:44:07,124 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 388 transitions. Word has length 69 [2022-02-15 00:44:07,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:44:07,125 INFO L470 AbstractCegarLoop]: Abstraction has 244 states and 388 transitions. [2022-02-15 00:44:07,125 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:44:07,125 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 388 transitions. [2022-02-15 00:44:07,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-02-15 00:44:07,126 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:44:07,127 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:44:07,127 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-02-15 00:44:07,127 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:44:07,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:44:07,128 INFO L85 PathProgramCache]: Analyzing trace with hash -851471807, now seen corresponding path program 1 times [2022-02-15 00:44:07,128 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:44:07,128 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837003963] [2022-02-15 00:44:07,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:44:07,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:44:07,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:44:07,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:44:07,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:44:07,273 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-02-15 00:44:07,273 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:44:07,274 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837003963] [2022-02-15 00:44:07,274 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837003963] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:44:07,274 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:44:07,274 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:44:07,274 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905208191] [2022-02-15 00:44:07,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:44:07,274 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:44:07,274 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:44:07,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:44:07,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:44:07,275 INFO L87 Difference]: Start difference. First operand 244 states and 388 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 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 00:44:08,935 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:44:10,959 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 00:44:12,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:44:12,545 INFO L93 Difference]: Finished difference Result 286 states and 448 transitions. [2022-02-15 00:44:12,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:44:12,545 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 97 [2022-02-15 00:44:12,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:44:12,546 INFO L225 Difference]: With dead ends: 286 [2022-02-15 00:44:12,546 INFO L226 Difference]: Without dead ends: 286 [2022-02-15 00:44:12,546 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 00:44:12,547 INFO L933 BasicCegarLoop]: 231 mSDtfsCounter, 30 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 433 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 599 SdHoareTripleChecker+Invalid, 445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 433 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-02-15 00:44:12,547 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 599 Invalid, 445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 433 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2022-02-15 00:44:12,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2022-02-15 00:44:12,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 266. [2022-02-15 00:44:12,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 261 states have (on average 1.6015325670498084) internal successors, (418), 261 states have internal predecessors, (418), 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 00:44:12,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 422 transitions. [2022-02-15 00:44:12,551 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 422 transitions. Word has length 97 [2022-02-15 00:44:12,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:44:12,551 INFO L470 AbstractCegarLoop]: Abstraction has 266 states and 422 transitions. [2022-02-15 00:44:12,551 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 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 00:44:12,551 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 422 transitions. [2022-02-15 00:44:12,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-02-15 00:44:12,552 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:44:12,552 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:44:12,552 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-02-15 00:44:12,552 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:44:12,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:44:12,552 INFO L85 PathProgramCache]: Analyzing trace with hash -714043438, now seen corresponding path program 1 times [2022-02-15 00:44:12,552 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:44:12,553 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128217808] [2022-02-15 00:44:12,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:44:12,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:44:12,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:44:12,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:44:12,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:44:12,629 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-02-15 00:44:12,629 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:44:12,630 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128217808] [2022-02-15 00:44:12,630 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128217808] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:44:12,630 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:44:12,630 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:44:12,630 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167530712] [2022-02-15 00:44:12,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:44:12,630 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:44:12,630 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:44:12,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:44:12,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:44:12,631 INFO L87 Difference]: Start difference. First operand 266 states and 422 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:44:14,901 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:44:16,451 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:44:18,471 WARN L534 Checker$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 00:44:18,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:44:18,946 INFO L93 Difference]: Finished difference Result 352 states and 544 transitions. [2022-02-15 00:44:18,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:44:18,947 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 97 [2022-02-15 00:44:18,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:44:18,948 INFO L225 Difference]: With dead ends: 352 [2022-02-15 00:44:18,948 INFO L226 Difference]: Without dead ends: 352 [2022-02-15 00:44:18,948 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 00:44:18,949 INFO L933 BasicCegarLoop]: 154 mSDtfsCounter, 159 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 510 mSolverCounterSat, 61 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 510 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-02-15 00:44:18,949 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 438 Invalid, 572 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 510 Invalid, 1 Unknown, 0 Unchecked, 6.3s Time] [2022-02-15 00:44:18,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2022-02-15 00:44:18,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 266. [2022-02-15 00:44:18,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 261 states have (on average 1.5862068965517242) internal successors, (414), 261 states have internal predecessors, (414), 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 00:44:18,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 418 transitions. [2022-02-15 00:44:18,953 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 418 transitions. Word has length 97 [2022-02-15 00:44:18,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:44:18,953 INFO L470 AbstractCegarLoop]: Abstraction has 266 states and 418 transitions. [2022-02-15 00:44:18,953 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:44:18,953 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 418 transitions. [2022-02-15 00:44:18,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-02-15 00:44:18,954 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:44:18,954 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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] [2022-02-15 00:44:18,954 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-02-15 00:44:18,955 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:44:18,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:44:18,955 INFO L85 PathProgramCache]: Analyzing trace with hash -986051140, now seen corresponding path program 1 times [2022-02-15 00:44:18,955 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:44:18,955 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598097856] [2022-02-15 00:44:18,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:44:18,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:44:19,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:44:19,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:44:19,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:44:19,065 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-02-15 00:44:19,065 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:44:19,066 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598097856] [2022-02-15 00:44:19,066 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598097856] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:44:19,066 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:44:19,066 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:44:19,066 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842870849] [2022-02-15 00:44:19,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:44:19,066 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:44:19,066 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:44:19,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:44:19,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:44:19,067 INFO L87 Difference]: Start difference. First operand 266 states and 418 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 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 00:44:20,302 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:44:22,320 WARN L534 Checker$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 00:44:24,352 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 00:44:25,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:44:25,327 INFO L93 Difference]: Finished difference Result 390 states and 607 transitions. [2022-02-15 00:44:25,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:44:25,327 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 110 [2022-02-15 00:44:25,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:44:25,329 INFO L225 Difference]: With dead ends: 390 [2022-02-15 00:44:25,329 INFO L226 Difference]: Without dead ends: 390 [2022-02-15 00:44:25,329 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 00:44:25,329 INFO L933 BasicCegarLoop]: 278 mSDtfsCounter, 158 mSDsluCounter, 408 mSDsCounter, 0 mSdLazyCounter, 630 mSolverCounterSat, 45 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 686 SdHoareTripleChecker+Invalid, 677 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 630 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-02-15 00:44:25,329 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 686 Invalid, 677 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 630 Invalid, 2 Unknown, 0 Unchecked, 6.2s Time] [2022-02-15 00:44:25,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2022-02-15 00:44:25,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 282. [2022-02-15 00:44:25,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 277 states have (on average 1.5703971119133573) internal successors, (435), 277 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 00:44:25,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 439 transitions. [2022-02-15 00:44:25,334 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 439 transitions. Word has length 110 [2022-02-15 00:44:25,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:44:25,334 INFO L470 AbstractCegarLoop]: Abstraction has 282 states and 439 transitions. [2022-02-15 00:44:25,334 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 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 00:44:25,334 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 439 transitions. [2022-02-15 00:44:25,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-02-15 00:44:25,336 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:44:25,336 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1] [2022-02-15 00:44:25,336 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-02-15 00:44:25,336 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:44:25,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:44:25,336 INFO L85 PathProgramCache]: Analyzing trace with hash -1816483301, now seen corresponding path program 1 times [2022-02-15 00:44:25,336 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:44:25,336 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71791593] [2022-02-15 00:44:25,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:44:25,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:44:25,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:44:25,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:44:25,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:44:25,428 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-02-15 00:44:25,428 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:44:25,428 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71791593] [2022-02-15 00:44:25,428 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71791593] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:44:25,428 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:44:25,428 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:44:25,428 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259664823] [2022-02-15 00:44:25,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:44:25,429 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:44:25,429 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:44:25,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:44:25,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:44:25,429 INFO L87 Difference]: Start difference. First operand 282 states and 439 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 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 00:44:26,980 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:44:28,922 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:44:30,832 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:44:32,083 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:44:32,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:44:32,452 INFO L93 Difference]: Finished difference Result 295 states and 454 transitions. [2022-02-15 00:44:32,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:44:32,452 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 111 [2022-02-15 00:44:32,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:44:32,453 INFO L225 Difference]: With dead ends: 295 [2022-02-15 00:44:32,453 INFO L226 Difference]: Without dead ends: 295 [2022-02-15 00:44:32,453 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 00:44:32,454 INFO L933 BasicCegarLoop]: 249 mSDtfsCounter, 19 mSDsluCounter, 385 mSDsCounter, 0 mSdLazyCounter, 418 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 634 SdHoareTripleChecker+Invalid, 428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 418 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-02-15 00:44:32,454 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 634 Invalid, 428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 418 Invalid, 0 Unknown, 0 Unchecked, 7.0s Time] [2022-02-15 00:44:32,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2022-02-15 00:44:32,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 282. [2022-02-15 00:44:32,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 277 states have (on average 1.5667870036101084) internal successors, (434), 277 states have internal predecessors, (434), 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 00:44:32,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 438 transitions. [2022-02-15 00:44:32,458 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 438 transitions. Word has length 111 [2022-02-15 00:44:32,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:44:32,458 INFO L470 AbstractCegarLoop]: Abstraction has 282 states and 438 transitions. [2022-02-15 00:44:32,458 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 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 00:44:32,458 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 438 transitions. [2022-02-15 00:44:32,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-02-15 00:44:32,459 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:44:32,459 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1] [2022-02-15 00:44:32,459 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-02-15 00:44:32,459 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:44:32,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:44:32,459 INFO L85 PathProgramCache]: Analyzing trace with hash -2050275241, now seen corresponding path program 1 times [2022-02-15 00:44:32,459 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:44:32,460 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676079768] [2022-02-15 00:44:32,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:44:32,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:44:32,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:44:32,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:44:32,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:44:32,564 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-02-15 00:44:32,564 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:44:32,564 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676079768] [2022-02-15 00:44:32,564 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676079768] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:44:32,564 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:44:32,564 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-15 00:44:32,564 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497437939] [2022-02-15 00:44:32,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:44:32,564 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-15 00:44:32,564 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:44:32,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-15 00:44:32,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:44:32,565 INFO L87 Difference]: Start difference. First operand 282 states and 438 transitions. Second operand has 6 states, 6 states have (on average 13.5) internal successors, (81), 5 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:44:34,949 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 00:44:36,106 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:44:37,181 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:44:39,198 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 00:44:39,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:44:39,551 INFO L93 Difference]: Finished difference Result 291 states and 449 transitions. [2022-02-15 00:44:39,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-15 00:44:39,551 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 5 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 112 [2022-02-15 00:44:39,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:44:39,552 INFO L225 Difference]: With dead ends: 291 [2022-02-15 00:44:39,552 INFO L226 Difference]: Without dead ends: 291 [2022-02-15 00:44:39,553 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-02-15 00:44:39,553 INFO L933 BasicCegarLoop]: 225 mSDtfsCounter, 3 mSDsluCounter, 496 mSDsCounter, 0 mSdLazyCounter, 456 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 721 SdHoareTripleChecker+Invalid, 462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 456 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-02-15 00:44:39,553 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 721 Invalid, 462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 456 Invalid, 2 Unknown, 0 Unchecked, 7.0s Time] [2022-02-15 00:44:39,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2022-02-15 00:44:39,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 291. [2022-02-15 00:44:39,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 291 states, 286 states have (on average 1.555944055944056) internal successors, (445), 286 states have internal predecessors, (445), 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 00:44:39,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 449 transitions. [2022-02-15 00:44:39,557 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 449 transitions. Word has length 112 [2022-02-15 00:44:39,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:44:39,558 INFO L470 AbstractCegarLoop]: Abstraction has 291 states and 449 transitions. [2022-02-15 00:44:39,558 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 5 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:44:39,558 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 449 transitions. [2022-02-15 00:44:39,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-02-15 00:44:39,558 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:44:39,559 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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, 1] [2022-02-15 00:44:39,559 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-02-15 00:44:39,559 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:44:39,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:44:39,559 INFO L85 PathProgramCache]: Analyzing trace with hash -1195242861, now seen corresponding path program 1 times [2022-02-15 00:44:39,559 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:44:39,559 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461598063] [2022-02-15 00:44:39,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:44:39,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:44:39,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:44:39,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:44:39,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:44:39,645 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-02-15 00:44:39,645 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:44:39,645 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461598063] [2022-02-15 00:44:39,646 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461598063] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:44:39,646 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:44:39,646 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:44:39,647 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603017391] [2022-02-15 00:44:39,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:44:39,647 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:44:39,647 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:44:39,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:44:39,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:44:39,647 INFO L87 Difference]: Start difference. First operand 291 states and 449 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 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 00:44:40,710 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:44:42,726 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:44:44,749 WARN L534 Checker$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 00:44:45,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:44:45,772 INFO L93 Difference]: Finished difference Result 308 states and 470 transitions. [2022-02-15 00:44:45,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:44:45,773 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 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 114 [2022-02-15 00:44:45,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:44:45,774 INFO L225 Difference]: With dead ends: 308 [2022-02-15 00:44:45,774 INFO L226 Difference]: Without dead ends: 308 [2022-02-15 00:44:45,774 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 00:44:45,775 INFO L933 BasicCegarLoop]: 221 mSDtfsCounter, 34 mSDsluCounter, 356 mSDsCounter, 0 mSdLazyCounter, 409 mSolverCounterSat, 10 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 577 SdHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 409 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-02-15 00:44:45,775 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 577 Invalid, 421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 409 Invalid, 2 Unknown, 0 Unchecked, 6.1s Time] [2022-02-15 00:44:45,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2022-02-15 00:44:45,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 291. [2022-02-15 00:44:45,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 291 states, 286 states have (on average 1.5524475524475525) internal successors, (444), 286 states have internal predecessors, (444), 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 00:44:45,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 448 transitions. [2022-02-15 00:44:45,780 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 448 transitions. Word has length 114 [2022-02-15 00:44:45,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:44:45,781 INFO L470 AbstractCegarLoop]: Abstraction has 291 states and 448 transitions. [2022-02-15 00:44:45,781 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 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 00:44:45,781 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 448 transitions. [2022-02-15 00:44:45,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-02-15 00:44:45,782 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:44:45,782 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:44:45,783 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-02-15 00:44:45,783 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:44:45,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:44:45,783 INFO L85 PathProgramCache]: Analyzing trace with hash -1677366494, now seen corresponding path program 1 times [2022-02-15 00:44:45,783 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:44:45,783 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055641437] [2022-02-15 00:44:45,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:44:45,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:44:45,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:44:45,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:44:45,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:44:45,899 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-15 00:44:45,900 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:44:45,900 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055641437] [2022-02-15 00:44:45,900 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055641437] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:44:45,900 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:44:45,900 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:44:45,900 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699580132] [2022-02-15 00:44:45,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:44:45,900 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:44:45,900 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:44:45,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:44:45,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:44:45,901 INFO L87 Difference]: Start difference. First operand 291 states and 448 transitions. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 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 00:44:48,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:44:48,851 INFO L93 Difference]: Finished difference Result 462 states and 713 transitions. [2022-02-15 00:44:48,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:44:48,851 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 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 119 [2022-02-15 00:44:48,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:44:48,853 INFO L225 Difference]: With dead ends: 462 [2022-02-15 00:44:48,853 INFO L226 Difference]: Without dead ends: 462 [2022-02-15 00:44:48,855 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 00:44:48,855 INFO L933 BasicCegarLoop]: 160 mSDtfsCounter, 141 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 506 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 450 SdHoareTripleChecker+Invalid, 553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 506 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-02-15 00:44:48,855 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 450 Invalid, 553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 506 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-02-15 00:44:48,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 462 states. [2022-02-15 00:44:48,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 462 to 355. [2022-02-15 00:44:48,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 350 states have (on average 1.5657142857142856) internal successors, (548), 350 states have internal predecessors, (548), 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 00:44:48,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 552 transitions. [2022-02-15 00:44:48,861 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 552 transitions. Word has length 119 [2022-02-15 00:44:48,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:44:48,861 INFO L470 AbstractCegarLoop]: Abstraction has 355 states and 552 transitions. [2022-02-15 00:44:48,861 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 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 00:44:48,861 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 552 transitions. [2022-02-15 00:44:48,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-02-15 00:44:48,862 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:44:48,862 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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, 1, 1, 1, 1] [2022-02-15 00:44:48,862 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-02-15 00:44:48,862 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:44:48,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:44:48,863 INFO L85 PathProgramCache]: Analyzing trace with hash -493221854, now seen corresponding path program 1 times [2022-02-15 00:44:48,863 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:44:48,863 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742803149] [2022-02-15 00:44:48,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:44:48,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:44:48,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:44:48,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:44:48,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:44:48,988 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2022-02-15 00:44:48,988 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:44:48,989 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742803149] [2022-02-15 00:44:48,989 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1742803149] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:44:48,989 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:44:48,989 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:44:48,989 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309974211] [2022-02-15 00:44:48,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:44:48,989 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:44:48,990 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:44:48,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:44:48,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:44:48,990 INFO L87 Difference]: Start difference. First operand 355 states and 552 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 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 00:44:50,285 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:44:51,826 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:44:53,677 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:44:54,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:44:54,026 INFO L93 Difference]: Finished difference Result 362 states and 561 transitions. [2022-02-15 00:44:54,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:44:54,026 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 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 124 [2022-02-15 00:44:54,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:44:54,027 INFO L225 Difference]: With dead ends: 362 [2022-02-15 00:44:54,027 INFO L226 Difference]: Without dead ends: 362 [2022-02-15 00:44:54,028 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 00:44:54,028 INFO L933 BasicCegarLoop]: 228 mSDtfsCounter, 30 mSDsluCounter, 363 mSDsCounter, 0 mSdLazyCounter, 397 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-02-15 00:44:54,028 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 591 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 397 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2022-02-15 00:44:54,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2022-02-15 00:44:54,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 355. [2022-02-15 00:44:54,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 350 states have (on average 1.562857142857143) internal successors, (547), 350 states have internal predecessors, (547), 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 00:44:54,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 551 transitions. [2022-02-15 00:44:54,034 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 551 transitions. Word has length 124 [2022-02-15 00:44:54,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:44:54,034 INFO L470 AbstractCegarLoop]: Abstraction has 355 states and 551 transitions. [2022-02-15 00:44:54,034 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 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 00:44:54,034 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 551 transitions. [2022-02-15 00:44:54,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-02-15 00:44:54,035 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:44:54,035 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:44:54,035 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-02-15 00:44:54,035 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:44:54,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:44:54,036 INFO L85 PathProgramCache]: Analyzing trace with hash 423811832, now seen corresponding path program 1 times [2022-02-15 00:44:54,036 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:44:54,036 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112215284] [2022-02-15 00:44:54,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:44:54,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:44:54,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:44:54,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:44:54,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:44:54,143 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-15 00:44:54,143 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:44:54,143 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112215284] [2022-02-15 00:44:54,143 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1112215284] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:44:54,144 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:44:54,144 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:44:54,144 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236870941] [2022-02-15 00:44:54,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:44:54,145 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:44:54,145 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:44:54,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:44:54,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:44:54,145 INFO L87 Difference]: Start difference. First operand 355 states and 551 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 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 00:44:55,839 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:44:57,188 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:44:58,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:44:58,352 INFO L93 Difference]: Finished difference Result 464 states and 713 transitions. [2022-02-15 00:44:58,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:44:58,353 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 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 125 [2022-02-15 00:44:58,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:44:58,354 INFO L225 Difference]: With dead ends: 464 [2022-02-15 00:44:58,354 INFO L226 Difference]: Without dead ends: 464 [2022-02-15 00:44:58,354 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 00:44:58,355 INFO L933 BasicCegarLoop]: 205 mSDtfsCounter, 92 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 534 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 547 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 534 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-02-15 00:44:58,355 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [92 Valid, 547 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 534 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-02-15 00:44:58,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2022-02-15 00:44:58,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 394. [2022-02-15 00:44:58,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 389 states have (on average 1.5681233933161953) internal successors, (610), 389 states have internal predecessors, (610), 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 00:44:58,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 614 transitions. [2022-02-15 00:44:58,390 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 614 transitions. Word has length 125 [2022-02-15 00:44:58,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:44:58,390 INFO L470 AbstractCegarLoop]: Abstraction has 394 states and 614 transitions. [2022-02-15 00:44:58,390 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 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 00:44:58,390 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 614 transitions. [2022-02-15 00:44:58,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-02-15 00:44:58,391 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:44:58,391 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:44:58,391 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-02-15 00:44:58,391 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:44:58,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:44:58,391 INFO L85 PathProgramCache]: Analyzing trace with hash 437344633, now seen corresponding path program 1 times [2022-02-15 00:44:58,392 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:44:58,392 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145848992] [2022-02-15 00:44:58,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:44:58,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:44:58,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:44:58,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:44:58,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:44:58,597 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-15 00:44:58,597 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:44:58,597 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145848992] [2022-02-15 00:44:58,598 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1145848992] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:44:58,598 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:44:58,598 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:44:58,598 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648987379] [2022-02-15 00:44:58,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:44:58,598 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:44:58,598 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:44:58,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:44:58,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:44:58,599 INFO L87 Difference]: Start difference. First operand 394 states and 614 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 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 00:45:00,428 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:45:02,450 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 00:45:02,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:45:02,884 INFO L93 Difference]: Finished difference Result 529 states and 815 transitions. [2022-02-15 00:45:02,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:45:02,885 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 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 125 [2022-02-15 00:45:02,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:45:02,886 INFO L225 Difference]: With dead ends: 529 [2022-02-15 00:45:02,886 INFO L226 Difference]: Without dead ends: 529 [2022-02-15 00:45:02,886 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 00:45:02,887 INFO L933 BasicCegarLoop]: 140 mSDtfsCounter, 137 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 60 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-02-15 00:45:02,887 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [137 Valid, 410 Invalid, 558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 497 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2022-02-15 00:45:02,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 529 states. [2022-02-15 00:45:02,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 529 to 392. [2022-02-15 00:45:02,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 387 states have (on average 1.5684754521963824) internal successors, (607), 387 states have internal predecessors, (607), 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 00:45:02,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 611 transitions. [2022-02-15 00:45:02,893 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 611 transitions. Word has length 125 [2022-02-15 00:45:02,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:45:02,893 INFO L470 AbstractCegarLoop]: Abstraction has 392 states and 611 transitions. [2022-02-15 00:45:02,893 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 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 00:45:02,893 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 611 transitions. [2022-02-15 00:45:02,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-02-15 00:45:02,894 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:45:02,894 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:45:02,894 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-02-15 00:45:02,894 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:45:02,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:45:02,894 INFO L85 PathProgramCache]: Analyzing trace with hash 295665995, now seen corresponding path program 1 times [2022-02-15 00:45:02,894 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:45:02,894 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705757060] [2022-02-15 00:45:02,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:45:02,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:45:02,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:45:03,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:45:03,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:45:03,022 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-15 00:45:03,022 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:45:03,022 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705757060] [2022-02-15 00:45:03,023 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [705757060] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:45:03,023 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:45:03,023 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:45:03,023 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532810289] [2022-02-15 00:45:03,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:45:03,023 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:45:03,023 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:45:03,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:45:03,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:45:03,024 INFO L87 Difference]: Start difference. First operand 392 states and 611 transitions. Second operand has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 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 00:45:04,183 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:45:05,269 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:45:06,549 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:45:08,567 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 00:45:08,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:45:08,955 INFO L93 Difference]: Finished difference Result 498 states and 768 transitions. [2022-02-15 00:45:08,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:45:08,956 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 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 126 [2022-02-15 00:45:08,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:45:08,957 INFO L225 Difference]: With dead ends: 498 [2022-02-15 00:45:08,957 INFO L226 Difference]: Without dead ends: 498 [2022-02-15 00:45:08,957 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 00:45:08,958 INFO L933 BasicCegarLoop]: 202 mSDtfsCounter, 87 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 526 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 541 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 526 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-02-15 00:45:08,958 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [87 Valid, 541 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 526 Invalid, 1 Unknown, 0 Unchecked, 5.9s Time] [2022-02-15 00:45:08,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498 states. [2022-02-15 00:45:08,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498 to 432. [2022-02-15 00:45:08,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 432 states, 427 states have (on average 1.5714285714285714) internal successors, (671), 427 states have internal predecessors, (671), 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 00:45:08,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 675 transitions. [2022-02-15 00:45:08,965 INFO L78 Accepts]: Start accepts. Automaton has 432 states and 675 transitions. Word has length 126 [2022-02-15 00:45:08,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:45:08,965 INFO L470 AbstractCegarLoop]: Abstraction has 432 states and 675 transitions. [2022-02-15 00:45:08,965 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 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 00:45:08,965 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states and 675 transitions. [2022-02-15 00:45:08,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-02-15 00:45:08,966 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:45:08,966 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:45:08,966 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-02-15 00:45:08,966 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:45:08,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:45:08,967 INFO L85 PathProgramCache]: Analyzing trace with hash 715182826, now seen corresponding path program 1 times [2022-02-15 00:45:08,967 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:45:08,967 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958584189] [2022-02-15 00:45:08,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:45:08,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:45:09,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:45:09,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:45:09,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:45:09,063 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-02-15 00:45:09,063 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:45:09,063 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958584189] [2022-02-15 00:45:09,063 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958584189] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:45:09,063 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:45:09,063 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:45:09,063 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003205628] [2022-02-15 00:45:09,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:45:09,064 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:45:09,064 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:45:09,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:45:09,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:45:09,064 INFO L87 Difference]: Start difference. First operand 432 states and 675 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 00:45:12,531 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 00:45:12,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:45:12,888 INFO L93 Difference]: Finished difference Result 488 states and 753 transitions. [2022-02-15 00:45:12,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:45:12,890 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 126 [2022-02-15 00:45:12,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:45:12,892 INFO L225 Difference]: With dead ends: 488 [2022-02-15 00:45:12,892 INFO L226 Difference]: Without dead ends: 488 [2022-02-15 00:45:12,892 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 00:45:12,892 INFO L933 BasicCegarLoop]: 267 mSDtfsCounter, 36 mSDsluCounter, 402 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 669 SdHoareTripleChecker+Invalid, 493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-02-15 00:45:12,892 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 669 Invalid, 493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 482 Invalid, 1 Unknown, 0 Unchecked, 3.8s Time] [2022-02-15 00:45:12,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2022-02-15 00:45:12,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 456. [2022-02-15 00:45:12,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 456 states, 451 states have (on average 1.5676274944567627) internal successors, (707), 451 states have internal predecessors, (707), 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 00:45:12,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 711 transitions. [2022-02-15 00:45:12,901 INFO L78 Accepts]: Start accepts. Automaton has 456 states and 711 transitions. Word has length 126 [2022-02-15 00:45:12,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:45:12,901 INFO L470 AbstractCegarLoop]: Abstraction has 456 states and 711 transitions. [2022-02-15 00:45:12,901 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 00:45:12,901 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states and 711 transitions. [2022-02-15 00:45:12,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-02-15 00:45:12,902 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:45:12,902 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:45:12,902 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-02-15 00:45:12,903 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:45:12,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:45:12,903 INFO L85 PathProgramCache]: Analyzing trace with hash -1786561130, now seen corresponding path program 1 times [2022-02-15 00:45:12,903 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:45:12,903 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132859641] [2022-02-15 00:45:12,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:45:12,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:45:12,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:45:13,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:45:13,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:45:13,044 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-15 00:45:13,044 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:45:13,044 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132859641] [2022-02-15 00:45:13,044 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132859641] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:45:13,044 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:45:13,044 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:45:13,045 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321103032] [2022-02-15 00:45:13,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:45:13,045 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:45:13,045 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:45:13,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:45:13,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:45:13,046 INFO L87 Difference]: Start difference. First operand 456 states and 711 transitions. Second operand has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 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 00:45:14,146 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:45:15,859 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:45:16,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:45:16,674 INFO L93 Difference]: Finished difference Result 513 states and 788 transitions. [2022-02-15 00:45:16,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:45:16,674 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 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 133 [2022-02-15 00:45:16,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:45:16,676 INFO L225 Difference]: With dead ends: 513 [2022-02-15 00:45:16,676 INFO L226 Difference]: Without dead ends: 513 [2022-02-15 00:45:16,676 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 00:45:16,676 INFO L933 BasicCegarLoop]: 205 mSDtfsCounter, 69 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 521 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 547 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 521 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-02-15 00:45:16,677 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 547 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 521 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-02-15 00:45:16,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states. [2022-02-15 00:45:16,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 459. [2022-02-15 00:45:16,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 459 states, 454 states have (on average 1.5638766519823788) internal successors, (710), 454 states have internal predecessors, (710), 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 00:45:16,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 714 transitions. [2022-02-15 00:45:16,682 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 714 transitions. Word has length 133 [2022-02-15 00:45:16,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:45:16,682 INFO L470 AbstractCegarLoop]: Abstraction has 459 states and 714 transitions. [2022-02-15 00:45:16,682 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 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 00:45:16,682 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 714 transitions. [2022-02-15 00:45:16,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-02-15 00:45:16,683 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:45:16,683 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:45:16,683 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-02-15 00:45:16,683 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:45:16,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:45:16,684 INFO L85 PathProgramCache]: Analyzing trace with hash 500717211, now seen corresponding path program 1 times [2022-02-15 00:45:16,684 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:45:16,684 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113171443] [2022-02-15 00:45:16,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:45:16,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:45:16,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:45:16,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:45:16,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:45:16,813 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-02-15 00:45:16,813 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:45:16,813 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113171443] [2022-02-15 00:45:16,813 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [113171443] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:45:16,814 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:45:16,814 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:45:16,814 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554177873] [2022-02-15 00:45:16,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:45:16,814 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:45:16,814 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:45:16,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:45:16,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:45:16,815 INFO L87 Difference]: Start difference. First operand 459 states and 714 transitions. Second operand has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:45:18,409 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:45:20,230 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:45:21,485 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:45:22,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:45:22,689 INFO L93 Difference]: Finished difference Result 544 states and 830 transitions. [2022-02-15 00:45:22,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:45:22,690 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 143 [2022-02-15 00:45:22,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:45:22,691 INFO L225 Difference]: With dead ends: 544 [2022-02-15 00:45:22,691 INFO L226 Difference]: Without dead ends: 544 [2022-02-15 00:45:22,692 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 00:45:22,692 INFO L933 BasicCegarLoop]: 155 mSDtfsCounter, 159 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 509 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 440 SdHoareTripleChecker+Invalid, 568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-02-15 00:45:22,692 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 440 Invalid, 568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 509 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2022-02-15 00:45:22,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 544 states. [2022-02-15 00:45:22,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 544 to 459. [2022-02-15 00:45:22,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 459 states, 454 states have (on average 1.5462555066079295) internal successors, (702), 454 states have internal predecessors, (702), 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 00:45:22,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 706 transitions. [2022-02-15 00:45:22,698 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 706 transitions. Word has length 143 [2022-02-15 00:45:22,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:45:22,698 INFO L470 AbstractCegarLoop]: Abstraction has 459 states and 706 transitions. [2022-02-15 00:45:22,698 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:45:22,698 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 706 transitions. [2022-02-15 00:45:22,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-02-15 00:45:22,699 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:45:22,699 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:45:22,699 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-02-15 00:45:22,699 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:45:22,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:45:22,700 INFO L85 PathProgramCache]: Analyzing trace with hash 111454881, now seen corresponding path program 1 times [2022-02-15 00:45:22,700 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:45:22,700 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910074470] [2022-02-15 00:45:22,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:45:22,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:45:22,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:45:22,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:45:22,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:45:22,794 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-02-15 00:45:22,794 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:45:22,794 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910074470] [2022-02-15 00:45:22,794 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910074470] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:45:22,794 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:45:22,794 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:45:22,794 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927351178] [2022-02-15 00:45:22,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:45:22,795 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:45:22,795 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:45:22,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:45:22,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:45:22,795 INFO L87 Difference]: Start difference. First operand 459 states and 706 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 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 00:45:25,206 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:45:27,230 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 00:45:27,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:45:27,577 INFO L93 Difference]: Finished difference Result 493 states and 754 transitions. [2022-02-15 00:45:27,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:45:27,578 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 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 146 [2022-02-15 00:45:27,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:45:27,579 INFO L225 Difference]: With dead ends: 493 [2022-02-15 00:45:27,579 INFO L226 Difference]: Without dead ends: 493 [2022-02-15 00:45:27,579 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 00:45:27,580 INFO L933 BasicCegarLoop]: 214 mSDtfsCounter, 90 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 503 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 563 SdHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 503 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-02-15 00:45:27,580 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [90 Valid, 563 Invalid, 511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 503 Invalid, 1 Unknown, 0 Unchecked, 4.8s Time] [2022-02-15 00:45:27,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2022-02-15 00:45:27,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 459. [2022-02-15 00:45:27,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 459 states, 454 states have (on average 1.5440528634361232) internal successors, (701), 454 states have internal predecessors, (701), 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 00:45:27,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 705 transitions. [2022-02-15 00:45:27,590 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 705 transitions. Word has length 146 [2022-02-15 00:45:27,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:45:27,591 INFO L470 AbstractCegarLoop]: Abstraction has 459 states and 705 transitions. [2022-02-15 00:45:27,591 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 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 00:45:27,591 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 705 transitions. [2022-02-15 00:45:27,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-02-15 00:45:27,592 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:45:27,592 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 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, 1, 1] [2022-02-15 00:45:27,592 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-02-15 00:45:27,592 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:45:27,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:45:27,593 INFO L85 PathProgramCache]: Analyzing trace with hash -1380090645, now seen corresponding path program 1 times [2022-02-15 00:45:27,593 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:45:27,593 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369182543] [2022-02-15 00:45:27,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:45:27,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:45:27,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:45:27,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:45:27,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:45:27,716 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-02-15 00:45:27,716 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:45:27,716 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369182543] [2022-02-15 00:45:27,716 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369182543] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:45:27,716 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:45:27,716 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:45:27,717 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747291244] [2022-02-15 00:45:27,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:45:27,717 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:45:27,717 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:45:27,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:45:27,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:45:27,718 INFO L87 Difference]: Start difference. First operand 459 states and 705 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 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 00:45:29,246 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:45:31,003 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:45:32,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:45:32,064 INFO L93 Difference]: Finished difference Result 584 states and 887 transitions. [2022-02-15 00:45:32,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:45:32,065 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 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 146 [2022-02-15 00:45:32,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:45:32,067 INFO L225 Difference]: With dead ends: 584 [2022-02-15 00:45:32,067 INFO L226 Difference]: Without dead ends: 584 [2022-02-15 00:45:32,067 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 00:45:32,067 INFO L933 BasicCegarLoop]: 155 mSDtfsCounter, 142 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 512 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 440 SdHoareTripleChecker+Invalid, 565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 512 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-02-15 00:45:32,067 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 440 Invalid, 565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 512 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-02-15 00:45:32,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 584 states. [2022-02-15 00:45:32,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 584 to 489. [2022-02-15 00:45:32,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 489 states, 484 states have (on average 1.5351239669421488) internal successors, (743), 484 states have internal predecessors, (743), 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 00:45:32,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 747 transitions. [2022-02-15 00:45:32,079 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 747 transitions. Word has length 146 [2022-02-15 00:45:32,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:45:32,079 INFO L470 AbstractCegarLoop]: Abstraction has 489 states and 747 transitions. [2022-02-15 00:45:32,079 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 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 00:45:32,079 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 747 transitions. [2022-02-15 00:45:32,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-02-15 00:45:32,080 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:45:32,080 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:45:32,080 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-02-15 00:45:32,081 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:45:32,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:45:32,081 INFO L85 PathProgramCache]: Analyzing trace with hash -841746752, now seen corresponding path program 1 times [2022-02-15 00:45:32,081 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:45:32,081 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416061434] [2022-02-15 00:45:32,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:45:32,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:45:32,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:45:32,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:45:32,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:45:32,189 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-02-15 00:45:32,190 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:45:32,190 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416061434] [2022-02-15 00:45:32,190 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416061434] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:45:32,190 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:45:32,190 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:45:32,190 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860778491] [2022-02-15 00:45:32,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:45:32,190 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:45:32,190 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:45:32,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:45:32,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:45:32,191 INFO L87 Difference]: Start difference. First operand 489 states and 747 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 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 00:45:34,698 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:45:35,977 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:45:37,554 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:45:38,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:45:38,060 INFO L93 Difference]: Finished difference Result 501 states and 763 transitions. [2022-02-15 00:45:38,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:45:38,061 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 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 146 [2022-02-15 00:45:38,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:45:38,062 INFO L225 Difference]: With dead ends: 501 [2022-02-15 00:45:38,063 INFO L226 Difference]: Without dead ends: 501 [2022-02-15 00:45:38,063 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 00:45:38,063 INFO L933 BasicCegarLoop]: 260 mSDtfsCounter, 40 mSDsluCounter, 395 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 655 SdHoareTripleChecker+Invalid, 452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-02-15 00:45:38,064 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 655 Invalid, 452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 447 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2022-02-15 00:45:38,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2022-02-15 00:45:38,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 489. [2022-02-15 00:45:38,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 489 states, 484 states have (on average 1.5330578512396693) internal successors, (742), 484 states have internal predecessors, (742), 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 00:45:38,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 746 transitions. [2022-02-15 00:45:38,071 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 746 transitions. Word has length 146 [2022-02-15 00:45:38,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:45:38,071 INFO L470 AbstractCegarLoop]: Abstraction has 489 states and 746 transitions. [2022-02-15 00:45:38,071 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 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 00:45:38,071 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 746 transitions. [2022-02-15 00:45:38,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-02-15 00:45:38,073 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:45:38,073 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:45:38,073 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-02-15 00:45:38,073 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:45:38,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:45:38,074 INFO L85 PathProgramCache]: Analyzing trace with hash 1302552011, now seen corresponding path program 1 times [2022-02-15 00:45:38,074 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:45:38,074 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506634341] [2022-02-15 00:45:38,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:45:38,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:45:38,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:45:38,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:45:38,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:45:38,206 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-02-15 00:45:38,207 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:45:38,207 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506634341] [2022-02-15 00:45:38,207 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506634341] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:45:38,207 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:45:38,207 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:45:38,207 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030498738] [2022-02-15 00:45:38,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:45:38,207 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:45:38,208 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:45:38,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:45:38,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:45:38,208 INFO L87 Difference]: Start difference. First operand 489 states and 746 transitions. Second operand has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 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 00:45:40,549 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:45:42,577 WARN L534 Checker$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 00:45:44,599 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 00:45:44,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:45:44,985 INFO L93 Difference]: Finished difference Result 521 states and 792 transitions. [2022-02-15 00:45:44,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:45:44,985 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 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 147 [2022-02-15 00:45:44,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:45:44,987 INFO L225 Difference]: With dead ends: 521 [2022-02-15 00:45:44,987 INFO L226 Difference]: Without dead ends: 521 [2022-02-15 00:45:44,987 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 00:45:44,988 INFO L933 BasicCegarLoop]: 215 mSDtfsCounter, 67 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 498 mSolverCounterSat, 7 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 567 SdHoareTripleChecker+Invalid, 508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 498 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-02-15 00:45:44,988 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [67 Valid, 567 Invalid, 508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 498 Invalid, 3 Unknown, 0 Unchecked, 6.8s Time] [2022-02-15 00:45:44,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521 states. [2022-02-15 00:45:44,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 489. [2022-02-15 00:45:44,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 489 states, 484 states have (on average 1.53099173553719) internal successors, (741), 484 states have internal predecessors, (741), 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 00:45:44,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 745 transitions. [2022-02-15 00:45:44,993 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 745 transitions. Word has length 147 [2022-02-15 00:45:44,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:45:44,993 INFO L470 AbstractCegarLoop]: Abstraction has 489 states and 745 transitions. [2022-02-15 00:45:44,993 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 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 00:45:44,993 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 745 transitions. [2022-02-15 00:45:44,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-02-15 00:45:44,994 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:45:44,994 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 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] [2022-02-15 00:45:44,994 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-02-15 00:45:44,995 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:45:44,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:45:44,995 INFO L85 PathProgramCache]: Analyzing trace with hash 1125148137, now seen corresponding path program 1 times [2022-02-15 00:45:44,995 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:45:44,995 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625384081] [2022-02-15 00:45:44,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:45:44,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:45:45,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:45:45,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:45:45,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:45:45,109 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-02-15 00:45:45,109 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:45:45,109 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625384081] [2022-02-15 00:45:45,109 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625384081] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:45:45,109 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:45:45,109 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:45:45,109 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970737820] [2022-02-15 00:45:45,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:45:45,110 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:45:45,111 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:45:45,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:45:45,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:45:45,111 INFO L87 Difference]: Start difference. First operand 489 states and 745 transitions. Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:45:47,040 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:45:48,982 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:45:50,605 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:45:52,076 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:45:52,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:45:52,506 INFO L93 Difference]: Finished difference Result 574 states and 862 transitions. [2022-02-15 00:45:52,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:45:52,506 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 148 [2022-02-15 00:45:52,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:45:52,508 INFO L225 Difference]: With dead ends: 574 [2022-02-15 00:45:52,508 INFO L226 Difference]: Without dead ends: 574 [2022-02-15 00:45:52,508 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 00:45:52,508 INFO L933 BasicCegarLoop]: 148 mSDtfsCounter, 148 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 504 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 426 SdHoareTripleChecker+Invalid, 562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 504 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-02-15 00:45:52,509 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 426 Invalid, 562 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 504 Invalid, 0 Unknown, 0 Unchecked, 7.4s Time] [2022-02-15 00:45:52,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2022-02-15 00:45:52,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 489. [2022-02-15 00:45:52,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 489 states, 484 states have (on average 1.5165289256198347) internal successors, (734), 484 states have internal predecessors, (734), 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 00:45:52,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 738 transitions. [2022-02-15 00:45:52,514 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 738 transitions. Word has length 148 [2022-02-15 00:45:52,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:45:52,514 INFO L470 AbstractCegarLoop]: Abstraction has 489 states and 738 transitions. [2022-02-15 00:45:52,514 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:45:52,514 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 738 transitions. [2022-02-15 00:45:52,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-02-15 00:45:52,515 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:45:52,515 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 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] [2022-02-15 00:45:52,515 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-02-15 00:45:52,515 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:45:52,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:45:52,515 INFO L85 PathProgramCache]: Analyzing trace with hash -73587128, now seen corresponding path program 1 times [2022-02-15 00:45:52,515 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:45:52,515 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238379387] [2022-02-15 00:45:52,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:45:52,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:45:52,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:45:52,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:45:52,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:45:52,622 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-02-15 00:45:52,622 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:45:52,622 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238379387] [2022-02-15 00:45:52,622 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238379387] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:45:52,622 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:45:52,623 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 00:45:52,623 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640230214] [2022-02-15 00:45:52,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:45:52,623 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 00:45:52,623 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:45:52,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 00:45:52,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 00:45:52,623 INFO L87 Difference]: Start difference. First operand 489 states and 738 transitions. Second operand has 4 states, 4 states have (on average 29.0) internal successors, (116), 3 states have internal predecessors, (116), 1 states have call successors, (3), 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 00:45:54,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:45:54,426 INFO L93 Difference]: Finished difference Result 947 states and 1419 transitions. [2022-02-15 00:45:54,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 00:45:54,426 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.0) internal successors, (116), 3 states have internal predecessors, (116), 1 states have call successors, (3), 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 148 [2022-02-15 00:45:54,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:45:54,429 INFO L225 Difference]: With dead ends: 947 [2022-02-15 00:45:54,429 INFO L226 Difference]: Without dead ends: 947 [2022-02-15 00:45:54,429 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 00:45:54,429 INFO L933 BasicCegarLoop]: 254 mSDtfsCounter, 150 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 448 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-02-15 00:45:54,430 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 448 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 341 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-02-15 00:45:54,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 947 states. [2022-02-15 00:45:54,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 947 to 945. [2022-02-15 00:45:54,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 945 states, 940 states have (on average 1.504255319148936) internal successors, (1414), 940 states have internal predecessors, (1414), 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 00:45:54,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 945 states to 945 states and 1418 transitions. [2022-02-15 00:45:54,438 INFO L78 Accepts]: Start accepts. Automaton has 945 states and 1418 transitions. Word has length 148 [2022-02-15 00:45:54,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:45:54,438 INFO L470 AbstractCegarLoop]: Abstraction has 945 states and 1418 transitions. [2022-02-15 00:45:54,438 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.0) internal successors, (116), 3 states have internal predecessors, (116), 1 states have call successors, (3), 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 00:45:54,438 INFO L276 IsEmpty]: Start isEmpty. Operand 945 states and 1418 transitions. [2022-02-15 00:45:54,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-02-15 00:45:54,440 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:45:54,440 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 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] [2022-02-15 00:45:54,440 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-02-15 00:45:54,440 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:45:54,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:45:54,440 INFO L85 PathProgramCache]: Analyzing trace with hash 50486119, now seen corresponding path program 1 times [2022-02-15 00:45:54,440 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:45:54,440 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414710804] [2022-02-15 00:45:54,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:45:54,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:45:54,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:45:54,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:45:54,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:45:54,532 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2022-02-15 00:45:54,532 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:45:54,532 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414710804] [2022-02-15 00:45:54,532 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414710804] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:45:54,532 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:45:54,532 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:45:54,532 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750006928] [2022-02-15 00:45:54,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:45:54,533 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:45:54,533 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:45:54,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:45:54,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:45:54,533 INFO L87 Difference]: Start difference. First operand 945 states and 1418 transitions. Second operand has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 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 00:45:56,237 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 00:45:58,639 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:45:59,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:45:59,036 INFO L93 Difference]: Finished difference Result 1044 states and 1554 transitions. [2022-02-15 00:45:59,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:45:59,036 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 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 148 [2022-02-15 00:45:59,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:45:59,039 INFO L225 Difference]: With dead ends: 1044 [2022-02-15 00:45:59,039 INFO L226 Difference]: Without dead ends: 1044 [2022-02-15 00:45:59,039 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 00:45:59,040 INFO L933 BasicCegarLoop]: 253 mSDtfsCounter, 36 mSDsluCounter, 388 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 641 SdHoareTripleChecker+Invalid, 488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-02-15 00:45:59,040 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 641 Invalid, 488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 478 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-02-15 00:45:59,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1044 states. [2022-02-15 00:45:59,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1044 to 997. [2022-02-15 00:45:59,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 997 states, 992 states have (on average 1.502016129032258) internal successors, (1490), 992 states have internal predecessors, (1490), 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 00:45:59,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 997 states to 997 states and 1494 transitions. [2022-02-15 00:45:59,051 INFO L78 Accepts]: Start accepts. Automaton has 997 states and 1494 transitions. Word has length 148 [2022-02-15 00:45:59,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:45:59,051 INFO L470 AbstractCegarLoop]: Abstraction has 997 states and 1494 transitions. [2022-02-15 00:45:59,051 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 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 00:45:59,051 INFO L276 IsEmpty]: Start isEmpty. Operand 997 states and 1494 transitions. [2022-02-15 00:45:59,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-02-15 00:45:59,052 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:45:59,053 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:45:59,053 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-02-15 00:45:59,053 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:45:59,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:45:59,053 INFO L85 PathProgramCache]: Analyzing trace with hash 2147424636, now seen corresponding path program 1 times [2022-02-15 00:45:59,053 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:45:59,053 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132672991] [2022-02-15 00:45:59,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:45:59,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:45:59,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:45:59,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:45:59,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:45:59,161 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-02-15 00:45:59,161 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:45:59,161 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132672991] [2022-02-15 00:45:59,161 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132672991] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:45:59,161 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:45:59,161 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:45:59,161 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759484998] [2022-02-15 00:45:59,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:45:59,161 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:45:59,161 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:45:59,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:45:59,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:45:59,162 INFO L87 Difference]: Start difference. First operand 997 states and 1494 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:46:01,263 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:46:02,397 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:46:04,412 WARN L534 Checker$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 00:46:04,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:46:04,755 INFO L93 Difference]: Finished difference Result 1060 states and 1579 transitions. [2022-02-15 00:46:04,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:46:04,755 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 150 [2022-02-15 00:46:04,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:46:04,758 INFO L225 Difference]: With dead ends: 1060 [2022-02-15 00:46:04,758 INFO L226 Difference]: Without dead ends: 1060 [2022-02-15 00:46:04,758 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 00:46:04,758 INFO L933 BasicCegarLoop]: 222 mSDtfsCounter, 68 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 508 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 581 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 508 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-02-15 00:46:04,758 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [68 Valid, 581 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 508 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2022-02-15 00:46:04,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1060 states. [2022-02-15 00:46:04,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1060 to 997. [2022-02-15 00:46:04,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 997 states, 992 states have (on average 1.5) internal successors, (1488), 992 states have internal predecessors, (1488), 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 00:46:04,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 997 states to 997 states and 1492 transitions. [2022-02-15 00:46:04,768 INFO L78 Accepts]: Start accepts. Automaton has 997 states and 1492 transitions. Word has length 150 [2022-02-15 00:46:04,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:46:04,768 INFO L470 AbstractCegarLoop]: Abstraction has 997 states and 1492 transitions. [2022-02-15 00:46:04,768 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:46:04,768 INFO L276 IsEmpty]: Start isEmpty. Operand 997 states and 1492 transitions. [2022-02-15 00:46:04,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2022-02-15 00:46:04,770 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:46:04,770 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:46:04,770 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-02-15 00:46:04,770 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:46:04,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:46:04,770 INFO L85 PathProgramCache]: Analyzing trace with hash -256300962, now seen corresponding path program 1 times [2022-02-15 00:46:04,770 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:46:04,771 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973801670] [2022-02-15 00:46:04,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:46:04,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:46:04,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:46:04,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:46:04,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:46:04,908 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-02-15 00:46:04,909 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:46:04,909 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973801670] [2022-02-15 00:46:04,909 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973801670] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:46:04,909 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:46:04,909 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:46:04,909 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503460655] [2022-02-15 00:46:04,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:46:04,910 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:46:04,910 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:46:04,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:46:04,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:46:04,910 INFO L87 Difference]: Start difference. First operand 997 states and 1492 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 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 00:46:06,065 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:46:07,996 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:46:10,013 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 00:46:10,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:46:10,516 INFO L93 Difference]: Finished difference Result 1162 states and 1704 transitions. [2022-02-15 00:46:10,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:46:10,517 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 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 151 [2022-02-15 00:46:10,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:46:10,520 INFO L225 Difference]: With dead ends: 1162 [2022-02-15 00:46:10,520 INFO L226 Difference]: Without dead ends: 1162 [2022-02-15 00:46:10,520 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 00:46:10,520 INFO L933 BasicCegarLoop]: 141 mSDtfsCounter, 143 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 61 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-02-15 00:46:10,520 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 412 Invalid, 556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 494 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2022-02-15 00:46:10,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1162 states. [2022-02-15 00:46:10,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1162 to 997. [2022-02-15 00:46:10,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 997 states, 992 states have (on average 1.4858870967741935) internal successors, (1474), 992 states have internal predecessors, (1474), 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 00:46:10,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 997 states to 997 states and 1478 transitions. [2022-02-15 00:46:10,529 INFO L78 Accepts]: Start accepts. Automaton has 997 states and 1478 transitions. Word has length 151 [2022-02-15 00:46:10,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:46:10,530 INFO L470 AbstractCegarLoop]: Abstraction has 997 states and 1478 transitions. [2022-02-15 00:46:10,530 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 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 00:46:10,530 INFO L276 IsEmpty]: Start isEmpty. Operand 997 states and 1478 transitions. [2022-02-15 00:46:10,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-02-15 00:46:10,531 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:46:10,531 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:46:10,531 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-02-15 00:46:10,531 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:46:10,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:46:10,532 INFO L85 PathProgramCache]: Analyzing trace with hash -1370523072, now seen corresponding path program 1 times [2022-02-15 00:46:10,532 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:46:10,532 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273274152] [2022-02-15 00:46:10,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:46:10,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:46:10,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:46:10,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:46:10,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:46:10,622 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 126 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-02-15 00:46:10,622 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:46:10,622 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273274152] [2022-02-15 00:46:10,622 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273274152] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:46:10,622 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:46:10,622 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:46:10,622 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449566651] [2022-02-15 00:46:10,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:46:10,623 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:46:10,623 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:46:10,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:46:10,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:46:10,623 INFO L87 Difference]: Start difference. First operand 997 states and 1478 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 00:46:12,058 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:46:14,083 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:46:16,108 WARN L534 Checker$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 00:46:16,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:46:16,981 INFO L93 Difference]: Finished difference Result 1044 states and 1537 transitions. [2022-02-15 00:46:16,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:46:16,981 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 154 [2022-02-15 00:46:16,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:46:16,983 INFO L225 Difference]: With dead ends: 1044 [2022-02-15 00:46:16,983 INFO L226 Difference]: Without dead ends: 1044 [2022-02-15 00:46:16,984 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 00:46:16,984 INFO L933 BasicCegarLoop]: 231 mSDtfsCounter, 59 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 599 SdHoareTripleChecker+Invalid, 498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-02-15 00:46:16,984 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [59 Valid, 599 Invalid, 498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 489 Invalid, 2 Unknown, 0 Unchecked, 6.3s Time] [2022-02-15 00:46:16,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1044 states. [2022-02-15 00:46:16,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1044 to 997. [2022-02-15 00:46:16,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 997 states, 992 states have (on average 1.4838709677419355) internal successors, (1472), 992 states have internal predecessors, (1472), 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 00:46:16,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 997 states to 997 states and 1476 transitions. [2022-02-15 00:46:16,992 INFO L78 Accepts]: Start accepts. Automaton has 997 states and 1476 transitions. Word has length 154 [2022-02-15 00:46:16,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:46:16,993 INFO L470 AbstractCegarLoop]: Abstraction has 997 states and 1476 transitions. [2022-02-15 00:46:16,993 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 00:46:16,993 INFO L276 IsEmpty]: Start isEmpty. Operand 997 states and 1476 transitions. [2022-02-15 00:46:16,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-02-15 00:46:16,994 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:46:16,994 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:46:16,994 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-02-15 00:46:16,995 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:46:16,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:46:16,995 INFO L85 PathProgramCache]: Analyzing trace with hash 1544979744, now seen corresponding path program 1 times [2022-02-15 00:46:16,995 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:46:16,995 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898473179] [2022-02-15 00:46:16,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:46:16,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:46:17,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:46:17,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:46:17,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:46:17,082 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-02-15 00:46:17,082 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:46:17,082 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898473179] [2022-02-15 00:46:17,082 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898473179] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:46:17,082 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:46:17,082 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:46:17,082 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608372499] [2022-02-15 00:46:17,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:46:17,082 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:46:17,082 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:46:17,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:46:17,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:46:17,083 INFO L87 Difference]: Start difference. First operand 997 states and 1476 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 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 00:46:18,315 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:46:20,334 WARN L534 Checker$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 00:46:22,355 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:46:23,569 WARN L534 Checker$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 00:46:23,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:46:23,943 INFO L93 Difference]: Finished difference Result 1040 states and 1529 transitions. [2022-02-15 00:46:23,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:46:23,943 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 155 [2022-02-15 00:46:23,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:46:23,946 INFO L225 Difference]: With dead ends: 1040 [2022-02-15 00:46:23,946 INFO L226 Difference]: Without dead ends: 1040 [2022-02-15 00:46:23,946 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 00:46:23,946 INFO L933 BasicCegarLoop]: 234 mSDtfsCounter, 56 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 605 SdHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-02-15 00:46:23,947 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [56 Valid, 605 Invalid, 492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 483 Invalid, 2 Unknown, 0 Unchecked, 6.8s Time] [2022-02-15 00:46:23,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1040 states. [2022-02-15 00:46:23,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1040 to 997. [2022-02-15 00:46:23,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 997 states, 992 states have (on average 1.4818548387096775) internal successors, (1470), 992 states have internal predecessors, (1470), 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 00:46:23,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 997 states to 997 states and 1474 transitions. [2022-02-15 00:46:23,975 INFO L78 Accepts]: Start accepts. Automaton has 997 states and 1474 transitions. Word has length 155 [2022-02-15 00:46:23,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:46:23,975 INFO L470 AbstractCegarLoop]: Abstraction has 997 states and 1474 transitions. [2022-02-15 00:46:23,976 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 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 00:46:23,976 INFO L276 IsEmpty]: Start isEmpty. Operand 997 states and 1474 transitions. [2022-02-15 00:46:23,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-02-15 00:46:23,978 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:46:23,978 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:46:23,978 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-02-15 00:46:23,978 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:46:23,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:46:23,979 INFO L85 PathProgramCache]: Analyzing trace with hash -728495667, now seen corresponding path program 1 times [2022-02-15 00:46:23,979 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:46:23,979 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143329006] [2022-02-15 00:46:23,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:46:23,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:46:24,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:46:24,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:46:24,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:46:24,081 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-02-15 00:46:24,082 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:46:24,082 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143329006] [2022-02-15 00:46:24,082 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [143329006] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:46:24,082 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:46:24,082 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:46:24,082 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411145139] [2022-02-15 00:46:24,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:46:24,083 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:46:24,083 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:46:24,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:46:24,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:46:24,083 INFO L87 Difference]: Start difference. First operand 997 states and 1474 transitions. Second operand has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 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 00:46:25,579 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:46:28,496 WARN L534 Checker$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 00:46:29,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:46:29,378 INFO L93 Difference]: Finished difference Result 1040 states and 1527 transitions. [2022-02-15 00:46:29,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:46:29,378 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 158 [2022-02-15 00:46:29,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:46:29,381 INFO L225 Difference]: With dead ends: 1040 [2022-02-15 00:46:29,381 INFO L226 Difference]: Without dead ends: 1040 [2022-02-15 00:46:29,381 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 00:46:29,381 INFO L933 BasicCegarLoop]: 234 mSDtfsCounter, 49 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 605 SdHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-02-15 00:46:29,381 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 605 Invalid, 492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 484 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2022-02-15 00:46:29,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1040 states. [2022-02-15 00:46:29,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1040 to 997. [2022-02-15 00:46:29,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 997 states, 992 states have (on average 1.4798387096774193) internal successors, (1468), 992 states have internal predecessors, (1468), 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 00:46:29,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 997 states to 997 states and 1472 transitions. [2022-02-15 00:46:29,389 INFO L78 Accepts]: Start accepts. Automaton has 997 states and 1472 transitions. Word has length 158 [2022-02-15 00:46:29,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:46:29,389 INFO L470 AbstractCegarLoop]: Abstraction has 997 states and 1472 transitions. [2022-02-15 00:46:29,389 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 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 00:46:29,389 INFO L276 IsEmpty]: Start isEmpty. Operand 997 states and 1472 transitions. [2022-02-15 00:46:29,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-02-15 00:46:29,391 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:46:29,391 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:46:29,391 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-02-15 00:46:29,391 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:46:29,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:46:29,391 INFO L85 PathProgramCache]: Analyzing trace with hash -212926458, now seen corresponding path program 1 times [2022-02-15 00:46:29,391 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:46:29,391 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774235040] [2022-02-15 00:46:29,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:46:29,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:46:29,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:46:29,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:46:29,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:46:29,477 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-02-15 00:46:29,477 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:46:29,477 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774235040] [2022-02-15 00:46:29,477 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774235040] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:46:29,477 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:46:29,477 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:46:29,477 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016255671] [2022-02-15 00:46:29,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:46:29,477 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:46:29,477 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:46:29,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:46:29,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:46:29,478 INFO L87 Difference]: Start difference. First operand 997 states and 1472 transitions. Second operand has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 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 00:46:30,557 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:46:32,574 WARN L534 Checker$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 00:46:34,571 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:46:35,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:46:35,012 INFO L93 Difference]: Finished difference Result 1242 states and 1812 transitions. [2022-02-15 00:46:35,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:46:35,012 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 158 [2022-02-15 00:46:35,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:46:35,015 INFO L225 Difference]: With dead ends: 1242 [2022-02-15 00:46:35,016 INFO L226 Difference]: Without dead ends: 1242 [2022-02-15 00:46:35,016 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 00:46:35,016 INFO L933 BasicCegarLoop]: 141 mSDtfsCounter, 136 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 59 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-02-15 00:46:35,016 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 412 Invalid, 555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 495 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2022-02-15 00:46:35,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1242 states. [2022-02-15 00:46:35,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1242 to 1067. [2022-02-15 00:46:35,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1067 states, 1062 states have (on average 1.4764595103578155) internal successors, (1568), 1062 states have internal predecessors, (1568), 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 00:46:35,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1067 states to 1067 states and 1572 transitions. [2022-02-15 00:46:35,030 INFO L78 Accepts]: Start accepts. Automaton has 1067 states and 1572 transitions. Word has length 158 [2022-02-15 00:46:35,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:46:35,030 INFO L470 AbstractCegarLoop]: Abstraction has 1067 states and 1572 transitions. [2022-02-15 00:46:35,030 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 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 00:46:35,030 INFO L276 IsEmpty]: Start isEmpty. Operand 1067 states and 1572 transitions. [2022-02-15 00:46:35,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2022-02-15 00:46:35,031 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:46:35,031 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:46:35,031 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-02-15 00:46:35,031 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:46:35,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:46:35,032 INFO L85 PathProgramCache]: Analyzing trace with hash -159893672, now seen corresponding path program 1 times [2022-02-15 00:46:35,032 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:46:35,033 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882012869] [2022-02-15 00:46:35,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:46:35,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:46:35,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:46:35,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:46:35,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:46:35,149 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-02-15 00:46:35,149 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:46:35,149 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882012869] [2022-02-15 00:46:35,149 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882012869] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:46:35,149 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:46:35,149 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:46:35,149 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924922658] [2022-02-15 00:46:35,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:46:35,151 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:46:35,151 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:46:35,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:46:35,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:46:35,151 INFO L87 Difference]: Start difference. First operand 1067 states and 1572 transitions. Second operand has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 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 00:46:36,959 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:46:38,987 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:46:41,067 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:46:41,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:46:41,462 INFO L93 Difference]: Finished difference Result 1232 states and 1788 transitions. [2022-02-15 00:46:41,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:46:41,462 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 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 159 [2022-02-15 00:46:41,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:46:41,486 INFO L225 Difference]: With dead ends: 1232 [2022-02-15 00:46:41,486 INFO L226 Difference]: Without dead ends: 1232 [2022-02-15 00:46:41,486 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 00:46:41,486 INFO L933 BasicCegarLoop]: 141 mSDtfsCounter, 137 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 61 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-02-15 00:46:41,486 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [137 Valid, 412 Invalid, 556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 494 Invalid, 1 Unknown, 0 Unchecked, 6.3s Time] [2022-02-15 00:46:41,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1232 states. [2022-02-15 00:46:41,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1232 to 1067. [2022-02-15 00:46:41,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1067 states, 1062 states have (on average 1.4670433145009416) internal successors, (1558), 1062 states have internal predecessors, (1558), 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 00:46:41,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1067 states to 1067 states and 1562 transitions. [2022-02-15 00:46:41,502 INFO L78 Accepts]: Start accepts. Automaton has 1067 states and 1562 transitions. Word has length 159 [2022-02-15 00:46:41,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:46:41,502 INFO L470 AbstractCegarLoop]: Abstraction has 1067 states and 1562 transitions. [2022-02-15 00:46:41,502 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 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 00:46:41,502 INFO L276 IsEmpty]: Start isEmpty. Operand 1067 states and 1562 transitions. [2022-02-15 00:46:41,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2022-02-15 00:46:41,503 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:46:41,503 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 00:46:41,503 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-02-15 00:46:41,504 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:46:41,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:46:41,504 INFO L85 PathProgramCache]: Analyzing trace with hash 1161711826, now seen corresponding path program 1 times [2022-02-15 00:46:41,504 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:46:41,504 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935465061] [2022-02-15 00:46:41,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:46:41,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:46:41,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:46:41,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:46:41,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:46:41,598 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-02-15 00:46:41,599 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:46:41,599 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935465061] [2022-02-15 00:46:41,599 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935465061] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:46:41,599 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:46:41,599 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:46:41,599 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410877797] [2022-02-15 00:46:41,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:46:41,600 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:46:41,600 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:46:41,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:46:41,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:46:41,600 INFO L87 Difference]: Start difference. First operand 1067 states and 1562 transitions. Second operand has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 1 states have call successors, (3), 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 00:46:44,250 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:46:46,268 WARN L534 Checker$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 00:46:46,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:46:46,638 INFO L93 Difference]: Finished difference Result 1092 states and 1592 transitions. [2022-02-15 00:46:46,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:46:46,638 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 1 states have call successors, (3), 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 159 [2022-02-15 00:46:46,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:46:46,641 INFO L225 Difference]: With dead ends: 1092 [2022-02-15 00:46:46,641 INFO L226 Difference]: Without dead ends: 1092 [2022-02-15 00:46:46,641 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 00:46:46,641 INFO L933 BasicCegarLoop]: 237 mSDtfsCounter, 33 mSDsluCounter, 374 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 611 SdHoareTripleChecker+Invalid, 486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-02-15 00:46:46,641 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 611 Invalid, 486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 478 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2022-02-15 00:46:46,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1092 states. [2022-02-15 00:46:46,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1092 to 1067. [2022-02-15 00:46:46,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1067 states, 1062 states have (on average 1.4651600753295668) internal successors, (1556), 1062 states have internal predecessors, (1556), 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 00:46:46,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1067 states to 1067 states and 1560 transitions. [2022-02-15 00:46:46,649 INFO L78 Accepts]: Start accepts. Automaton has 1067 states and 1560 transitions. Word has length 159 [2022-02-15 00:46:46,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:46:46,650 INFO L470 AbstractCegarLoop]: Abstraction has 1067 states and 1560 transitions. [2022-02-15 00:46:46,651 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 1 states have call successors, (3), 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 00:46:46,651 INFO L276 IsEmpty]: Start isEmpty. Operand 1067 states and 1560 transitions. [2022-02-15 00:46:46,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-02-15 00:46:46,652 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:46:46,652 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 00:46:46,652 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-02-15 00:46:46,652 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:46:46,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:46:46,652 INFO L85 PathProgramCache]: Analyzing trace with hash -77990792, now seen corresponding path program 1 times [2022-02-15 00:46:46,653 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:46:46,653 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693809171] [2022-02-15 00:46:46,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:46:46,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:46:46,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:46:46,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:46:46,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:46:46,752 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2022-02-15 00:46:46,752 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:46:46,752 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693809171] [2022-02-15 00:46:46,752 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [693809171] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:46:46,752 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:46:46,752 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 00:46:46,752 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002589653] [2022-02-15 00:46:46,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:46:46,752 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 00:46:46,752 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:46:46,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 00:46:46,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 00:46:46,753 INFO L87 Difference]: Start difference. First operand 1067 states and 1560 transitions. Second operand has 4 states, 4 states have (on average 24.5) internal successors, (98), 3 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:46:48,413 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:46:50,433 WARN L534 Checker$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 00:46:50,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:46:50,686 INFO L93 Difference]: Finished difference Result 1094 states and 1595 transitions. [2022-02-15 00:46:50,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 00:46:50,686 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 3 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 167 [2022-02-15 00:46:50,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:46:50,689 INFO L225 Difference]: With dead ends: 1094 [2022-02-15 00:46:50,689 INFO L226 Difference]: Without dead ends: 1094 [2022-02-15 00:46:50,689 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 00:46:50,689 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 15 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 293 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 439 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 293 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-02-15 00:46:50,689 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 439 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 293 Invalid, 1 Unknown, 0 Unchecked, 3.9s Time] [2022-02-15 00:46:50,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1094 states. [2022-02-15 00:46:50,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1094 to 1094. [2022-02-15 00:46:50,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1094 states, 1089 states have (on average 1.460973370064279) internal successors, (1591), 1089 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 00:46:50,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1094 states to 1094 states and 1595 transitions. [2022-02-15 00:46:50,707 INFO L78 Accepts]: Start accepts. Automaton has 1094 states and 1595 transitions. Word has length 167 [2022-02-15 00:46:50,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:46:50,708 INFO L470 AbstractCegarLoop]: Abstraction has 1094 states and 1595 transitions. [2022-02-15 00:46:50,708 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 3 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:46:50,708 INFO L276 IsEmpty]: Start isEmpty. Operand 1094 states and 1595 transitions. [2022-02-15 00:46:50,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-02-15 00:46:50,709 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:46:50,709 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 00:46:50,709 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-02-15 00:46:50,714 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:46:50,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:46:50,715 INFO L85 PathProgramCache]: Analyzing trace with hash -155981063, now seen corresponding path program 1 times [2022-02-15 00:46:50,715 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:46:50,715 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718113057] [2022-02-15 00:46:50,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:46:50,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:46:50,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:46:50,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:46:50,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:46:50,790 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2022-02-15 00:46:50,790 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:46:50,790 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718113057] [2022-02-15 00:46:50,791 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718113057] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:46:50,791 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:46:50,791 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 00:46:50,791 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591931521] [2022-02-15 00:46:50,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:46:50,791 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 00:46:50,791 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:46:50,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 00:46:50,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 00:46:50,791 INFO L87 Difference]: Start difference. First operand 1094 states and 1595 transitions. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (3), 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 00:46:52,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:46:52,884 INFO L93 Difference]: Finished difference Result 1096 states and 1597 transitions. [2022-02-15 00:46:52,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 00:46:52,884 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (3), 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 00:46:52,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:46:52,887 INFO L225 Difference]: With dead ends: 1096 [2022-02-15 00:46:52,887 INFO L226 Difference]: Without dead ends: 1096 [2022-02-15 00:46:52,887 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 00:46:52,888 INFO L933 BasicCegarLoop]: 233 mSDtfsCounter, 4 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-02-15 00:46:52,888 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 418 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-02-15 00:46:52,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1096 states. [2022-02-15 00:46:52,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1096 to 1096. [2022-02-15 00:46:52,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1096 states, 1091 states have (on average 1.46012832263978) internal successors, (1593), 1091 states have internal predecessors, (1593), 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 00:46:52,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1096 states to 1096 states and 1597 transitions. [2022-02-15 00:46:52,913 INFO L78 Accepts]: Start accepts. Automaton has 1096 states and 1597 transitions. Word has length 167 [2022-02-15 00:46:52,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:46:52,913 INFO L470 AbstractCegarLoop]: Abstraction has 1096 states and 1597 transitions. [2022-02-15 00:46:52,913 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (3), 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 00:46:52,913 INFO L276 IsEmpty]: Start isEmpty. Operand 1096 states and 1597 transitions. [2022-02-15 00:46:52,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-02-15 00:46:52,915 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:46:52,915 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:46:52,915 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-02-15 00:46:52,915 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:46:52,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:46:52,915 INFO L85 PathProgramCache]: Analyzing trace with hash -2137854178, now seen corresponding path program 1 times [2022-02-15 00:46:52,915 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:46:52,916 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803625621] [2022-02-15 00:46:52,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:46:52,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:46:52,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:46:53,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:46:53,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:46:53,009 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 157 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2022-02-15 00:46:53,009 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:46:53,009 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803625621] [2022-02-15 00:46:53,009 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [803625621] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:46:53,009 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:46:53,009 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:46:53,009 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331428714] [2022-02-15 00:46:53,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:46:53,010 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:46:53,010 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:46:53,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:46:53,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:46:53,010 INFO L87 Difference]: Start difference. First operand 1096 states and 1597 transitions. Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:46:55,754 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:46:57,770 WARN L534 Checker$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 00:46:58,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:46:58,122 INFO L93 Difference]: Finished difference Result 1124 states and 1632 transitions. [2022-02-15 00:46:58,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:46:58,124 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 168 [2022-02-15 00:46:58,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:46:58,141 INFO L225 Difference]: With dead ends: 1124 [2022-02-15 00:46:58,141 INFO L226 Difference]: Without dead ends: 1124 [2022-02-15 00:46:58,141 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 00:46:58,142 INFO L933 BasicCegarLoop]: 256 mSDtfsCounter, 44 mSDsluCounter, 391 mSDsCounter, 0 mSdLazyCounter, 454 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 647 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 454 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-02-15 00:46:58,142 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [44 Valid, 647 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 454 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2022-02-15 00:46:58,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1124 states. [2022-02-15 00:46:58,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1124 to 1096. [2022-02-15 00:46:58,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1096 states, 1091 states have (on average 1.458295142071494) internal successors, (1591), 1091 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 00:46:58,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1096 states to 1096 states and 1595 transitions. [2022-02-15 00:46:58,151 INFO L78 Accepts]: Start accepts. Automaton has 1096 states and 1595 transitions. Word has length 168 [2022-02-15 00:46:58,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:46:58,152 INFO L470 AbstractCegarLoop]: Abstraction has 1096 states and 1595 transitions. [2022-02-15 00:46:58,152 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:46:58,152 INFO L276 IsEmpty]: Start isEmpty. Operand 1096 states and 1595 transitions. [2022-02-15 00:46:58,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-02-15 00:46:58,153 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:46:58,153 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 00:46:58,161 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-02-15 00:46:58,161 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:46:58,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:46:58,162 INFO L85 PathProgramCache]: Analyzing trace with hash -1150460582, now seen corresponding path program 1 times [2022-02-15 00:46:58,162 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:46:58,162 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328573623] [2022-02-15 00:46:58,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:46:58,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:46:58,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:46:58,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:46:58,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:46:58,346 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 156 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-02-15 00:46:58,346 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:46:58,346 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328573623] [2022-02-15 00:46:58,346 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328573623] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:46:58,346 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:46:58,346 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:46:58,346 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260359484] [2022-02-15 00:46:58,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:46:58,346 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:46:58,346 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:46:58,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:46:58,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:46:58,347 INFO L87 Difference]: Start difference. First operand 1096 states and 1595 transitions. Second operand has 5 states, 5 states have (on average 28.0) internal successors, (140), 4 states have internal predecessors, (140), 1 states have call successors, (3), 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 00:47:01,679 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:47:03,342 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:47:03,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:47:03,760 INFO L93 Difference]: Finished difference Result 1262 states and 1818 transitions. [2022-02-15 00:47:03,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:47:03,760 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 4 states have internal predecessors, (140), 1 states have call successors, (3), 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 170 [2022-02-15 00:47:03,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:47:03,763 INFO L225 Difference]: With dead ends: 1262 [2022-02-15 00:47:03,763 INFO L226 Difference]: Without dead ends: 1262 [2022-02-15 00:47:03,763 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 00:47:03,763 INFO L933 BasicCegarLoop]: 141 mSDtfsCounter, 131 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-02-15 00:47:03,763 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [131 Valid, 412 Invalid, 558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 495 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2022-02-15 00:47:03,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1262 states. [2022-02-15 00:47:03,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1262 to 1096. [2022-02-15 00:47:03,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1096 states, 1091 states have (on average 1.454628780934922) internal successors, (1587), 1091 states have internal predecessors, (1587), 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 00:47:03,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1096 states to 1096 states and 1591 transitions. [2022-02-15 00:47:03,772 INFO L78 Accepts]: Start accepts. Automaton has 1096 states and 1591 transitions. Word has length 170 [2022-02-15 00:47:03,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:47:03,772 INFO L470 AbstractCegarLoop]: Abstraction has 1096 states and 1591 transitions. [2022-02-15 00:47:03,772 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 4 states have internal predecessors, (140), 1 states have call successors, (3), 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 00:47:03,772 INFO L276 IsEmpty]: Start isEmpty. Operand 1096 states and 1591 transitions. [2022-02-15 00:47:03,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2022-02-15 00:47:03,774 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:47:03,774 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:47:03,774 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-02-15 00:47:03,774 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:47:03,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:47:03,774 INFO L85 PathProgramCache]: Analyzing trace with hash -1610206959, now seen corresponding path program 1 times [2022-02-15 00:47:03,774 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:47:03,774 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610948464] [2022-02-15 00:47:03,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:47:03,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:47:04,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:47:04,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:47:04,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:47:04,108 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2022-02-15 00:47:04,108 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:47:04,108 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610948464] [2022-02-15 00:47:04,108 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610948464] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:47:04,108 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:47:04,108 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-15 00:47:04,108 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507934138] [2022-02-15 00:47:04,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:47:04,109 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-15 00:47:04,109 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:47:04,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-15 00:47:04,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-02-15 00:47:04,109 INFO L87 Difference]: Start difference. First operand 1096 states and 1591 transitions. Second operand has 7 states, 6 states have (on average 13.666666666666666) internal successors, (82), 5 states have internal predecessors, (82), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:47:05,242 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:47:07,260 WARN L534 Checker$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 00:47:09,281 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:47:10,607 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:47:11,890 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:47:13,350 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:47:13,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:47:13,797 INFO L93 Difference]: Finished difference Result 1104 states and 1601 transitions. [2022-02-15 00:47:13,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-15 00:47:13,797 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 13.666666666666666) internal successors, (82), 5 states have internal predecessors, (82), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 180 [2022-02-15 00:47:13,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:47:13,799 INFO L225 Difference]: With dead ends: 1104 [2022-02-15 00:47:13,799 INFO L226 Difference]: Without dead ends: 1096 [2022-02-15 00:47:13,799 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-02-15 00:47:13,799 INFO L933 BasicCegarLoop]: 231 mSDtfsCounter, 7 mSDsluCounter, 721 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 952 SdHoareTripleChecker+Invalid, 470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2022-02-15 00:47:13,800 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 952 Invalid, 470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 464 Invalid, 2 Unknown, 0 Unchecked, 9.6s Time] [2022-02-15 00:47:13,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1096 states. [2022-02-15 00:47:13,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1096 to 1096. [2022-02-15 00:47:13,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1096 states, 1091 states have (on average 1.453712190650779) internal successors, (1586), 1091 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 00:47:13,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1096 states to 1096 states and 1590 transitions. [2022-02-15 00:47:13,812 INFO L78 Accepts]: Start accepts. Automaton has 1096 states and 1590 transitions. Word has length 180 [2022-02-15 00:47:13,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:47:13,812 INFO L470 AbstractCegarLoop]: Abstraction has 1096 states and 1590 transitions. [2022-02-15 00:47:13,812 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 13.666666666666666) internal successors, (82), 5 states have internal predecessors, (82), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:47:13,812 INFO L276 IsEmpty]: Start isEmpty. Operand 1096 states and 1590 transitions. [2022-02-15 00:47:13,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2022-02-15 00:47:13,814 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:47:13,814 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:47:13,814 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-02-15 00:47:13,814 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:47:13,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:47:13,815 INFO L85 PathProgramCache]: Analyzing trace with hash -2025533776, now seen corresponding path program 1 times [2022-02-15 00:47:13,815 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:47:13,815 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258622664] [2022-02-15 00:47:13,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:47:13,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:47:14,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:47:14,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:47:14,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:47:14,762 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 14 proven. 169 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-02-15 00:47:14,763 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:47:14,763 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258622664] [2022-02-15 00:47:14,763 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258622664] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-15 00:47:14,763 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2032538691] [2022-02-15 00:47:14,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:47:14,763 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-15 00:47:14,763 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-15 00:47:14,776 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 00:47:14,778 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 00:47:15,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:47:15,636 INFO L263 TraceCheckSpWp]: Trace formula consists of 1152 conjuncts, 183 conjunts are in the unsatisfiable core [2022-02-15 00:47:15,668 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-15 00:47:15,853 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 6561037 treesize of output 4524840 [2022-02-15 00:47:15,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:47:18,012 INFO L353 Elim1Store]: treesize reduction 520, result has 8.1 percent of original size [2022-02-15 00:47:18,015 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 5 case distinctions, treesize of input 63342154 treesize of output 63342173 [2022-02-15 00:47:21,166 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 78202535 treesize of output 61274178 [2022-02-15 00:47:22,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:47:22,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:47:22,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:47:22,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:47:22,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:47:22,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:47:22,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:47:22,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:47:22,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:47:22,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:47:22,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:47:22,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:47:22,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:47:22,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:47:22,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:47:22,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:47:22,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:47:22,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:47:22,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:47:22,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:47:22,859 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 36700474 treesize of output 36700493 [2022-02-15 00:47:36,056 INFO L244 Elim1Store]: Index analysis took 376 ms