/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.12.i.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-7968f31 [2022-03-17 18:59:34,413 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-17 18:59:34,414 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-17 18:59:34,435 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-17 18:59:34,436 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-17 18:59:34,436 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-17 18:59:34,437 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-17 18:59:34,438 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-17 18:59:34,439 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-17 18:59:34,439 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-17 18:59:34,440 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-17 18:59:34,441 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-17 18:59:34,441 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-17 18:59:34,442 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-17 18:59:34,442 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-17 18:59:34,443 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-17 18:59:34,443 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-17 18:59:34,444 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-17 18:59:34,445 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-17 18:59:34,446 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-17 18:59:34,447 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-17 18:59:34,448 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-17 18:59:34,448 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-17 18:59:34,449 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-17 18:59:34,449 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-17 18:59:34,451 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-17 18:59:34,451 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-17 18:59:34,451 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-17 18:59:34,452 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-17 18:59:34,452 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-17 18:59:34,453 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-03-17 18:59:34,453 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-17 18:59:34,453 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-17 18:59:34,454 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-17 18:59:34,454 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-17 18:59:34,455 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-17 18:59:34,455 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-17 18:59:34,455 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-17 18:59:34,455 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-17 18:59:34,455 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-17 18:59:34,456 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-17 18:59:34,456 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-17 18:59:34,457 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-03-17 18:59:34,466 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-17 18:59:34,466 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-17 18:59:34,467 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-17 18:59:34,467 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-17 18:59:34,467 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-17 18:59:34,467 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-17 18:59:34,467 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-17 18:59:34,467 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-17 18:59:34,467 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-17 18:59:34,467 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-17 18:59:34,467 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-17 18:59:34,468 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-17 18:59:34,468 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-17 18:59:34,468 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-17 18:59:34,468 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-17 18:59:34,468 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-17 18:59:34,468 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-17 18:59:34,468 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-17 18:59:34,468 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-17 18:59:34,468 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-17 18:59:34,468 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-17 18:59:34,469 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-03-17 18:59:34,469 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-17 18:59:34,631 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-17 18:59:34,650 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-17 18:59:34,652 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-17 18:59:34,653 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-17 18:59:34,654 INFO L275 PluginConnector]: CDTParser initialized [2022-03-17 18:59:34,655 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.12.i.cil-1.c [2022-03-17 18:59:34,698 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/57d5cc39d/e1b64918af7143048214f9cd9349532a/FLAG5314ae251 [2022-03-17 18:59:35,128 INFO L306 CDTParser]: Found 1 translation units. [2022-03-17 18:59:35,128 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.12.i.cil-1.c [2022-03-17 18:59:35,143 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/57d5cc39d/e1b64918af7143048214f9cd9349532a/FLAG5314ae251 [2022-03-17 18:59:35,159 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/57d5cc39d/e1b64918af7143048214f9cd9349532a [2022-03-17 18:59:35,161 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-17 18:59:35,164 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-17 18:59:35,167 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-17 18:59:35,168 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-17 18:59:35,170 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-17 18:59:35,171 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 06:59:35" (1/1) ... [2022-03-17 18:59:35,172 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69654de5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:59:35, skipping insertion in model container [2022-03-17 18:59:35,172 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 06:59:35" (1/1) ... [2022-03-17 18:59:35,176 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-17 18:59:35,225 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-17 18:59:35,493 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.12.i.cil-1.c[75166,75179] [2022-03-17 18:59:35,498 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-17 18:59:35,514 INFO L203 MainTranslator]: Completed pre-run [2022-03-17 18:59:35,587 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.12.i.cil-1.c[75166,75179] [2022-03-17 18:59:35,597 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-17 18:59:35,606 INFO L208 MainTranslator]: Completed translation [2022-03-17 18:59:35,607 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:59:35 WrapperNode [2022-03-17 18:59:35,607 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-17 18:59:35,607 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-17 18:59:35,607 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-17 18:59:35,608 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-17 18:59:35,616 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:59:35" (1/1) ... [2022-03-17 18:59:35,616 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:59:35" (1/1) ... [2022-03-17 18:59:35,643 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:59:35" (1/1) ... [2022-03-17 18:59:35,644 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:59:35" (1/1) ... [2022-03-17 18:59:35,701 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:59:35" (1/1) ... [2022-03-17 18:59:35,707 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:59:35" (1/1) ... [2022-03-17 18:59:35,709 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:59:35" (1/1) ... [2022-03-17 18:59:35,720 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-17 18:59:35,720 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-17 18:59:35,720 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-17 18:59:35,720 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-17 18:59:35,724 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:59:35" (1/1) ... [2022-03-17 18:59:35,729 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-17 18:59:35,735 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 18:59:35,748 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) [2022-03-17 18:59:35,754 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 [2022-03-17 18:59:35,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-17 18:59:35,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-17 18:59:35,775 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-17 18:59:35,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-03-17 18:59:35,776 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-03-17 18:59:35,776 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-17 18:59:35,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-03-17 18:59:35,776 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-03-17 18:59:35,776 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-03-17 18:59:35,776 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-03-17 18:59:35,776 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-17 18:59:35,776 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-17 18:59:35,777 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-17 18:59:35,777 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-17 18:59:35,777 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-03-17 18:59:35,778 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-03-17 18:59:35,779 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-17 18:59:35,779 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-03-17 18:59:35,779 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-03-17 18:59:35,779 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-03-17 18:59:35,779 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-03-17 18:59:35,779 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-03-17 18:59:35,779 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-03-17 18:59:35,779 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-03-17 18:59:35,779 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-03-17 18:59:35,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-03-17 18:59:35,779 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-17 18:59:35,779 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-03-17 18:59:35,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-17 18:59:35,779 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-03-17 18:59:35,780 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-17 18:59:35,780 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-03-17 18:59:35,780 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-03-17 18:59:35,780 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-17 18:59:35,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-17 18:59:35,780 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-17 18:59:35,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-03-17 18:59:35,780 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-03-17 18:59:35,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-03-17 18:59:35,781 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-03-17 18:59:35,781 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-17 18:59:35,939 INFO L234 CfgBuilder]: Building ICFG [2022-03-17 18:59:35,940 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-17 18:59:36,551 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-17 18:59:36,987 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-03-17 18:59:36,987 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-03-17 18:59:36,997 INFO L275 CfgBuilder]: Performing block encoding [2022-03-17 18:59:37,006 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-17 18:59:37,007 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-17 18:59:37,008 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.03 06:59:37 BoogieIcfgContainer [2022-03-17 18:59:37,008 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-17 18:59:37,009 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-03-17 18:59:37,009 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-03-17 18:59:37,010 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-03-17 18:59:37,013 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.03 06:59:37" (1/1) ... [2022-03-17 18:59:37,080 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 17.03 06:59:37 BasicIcfg [2022-03-17 18:59:37,081 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-03-17 18:59:37,083 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-17 18:59:37,083 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-17 18:59:37,085 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-17 18:59:37,085 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 06:59:35" (1/4) ... [2022-03-17 18:59:37,086 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50924326 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 06:59:37, skipping insertion in model container [2022-03-17 18:59:37,086 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:59:35" (2/4) ... [2022-03-17 18:59:37,087 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50924326 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 06:59:37, skipping insertion in model container [2022-03-17 18:59:37,087 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.03 06:59:37" (3/4) ... [2022-03-17 18:59:37,088 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50924326 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.03 06:59:37, skipping insertion in model container [2022-03-17 18:59:37,088 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 17.03 06:59:37" (4/4) ... [2022-03-17 18:59:37,089 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.12.i.cil-1.cJordan [2022-03-17 18:59:37,093 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-03-17 18:59:37,094 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-17 18:59:37,131 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-17 18:59:37,137 INFO L340 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 [2022-03-17 18:59:37,137 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-17 18:59:37,156 INFO L276 IsEmpty]: Start isEmpty. Operand has 160 states, 152 states have (on average 1.7105263157894737) internal successors, (260), 153 states have internal predecessors, (260), 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) [2022-03-17 18:59:37,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-03-17 18:59:37,166 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:59:37,167 INFO L500 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] [2022-03-17 18:59:37,167 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:59:37,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:59:37,171 INFO L85 PathProgramCache]: Analyzing trace with hash -796355078, now seen corresponding path program 1 times [2022-03-17 18:59:37,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:59:37,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103945463] [2022-03-17 18:59:37,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:59:37,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:59:37,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:59:37,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:59:37,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:59:37,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:59:37,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:59:37,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103945463] [2022-03-17 18:59:37,615 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103945463] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:59:37,615 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:59:37,615 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:59:37,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079967484] [2022-03-17 18:59:37,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:59:37,624 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:59:37,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:59:37,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:59:37,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:59:37,645 INFO L87 Difference]: Start difference. First operand has 160 states, 152 states have (on average 1.7105263157894737) internal successors, (260), 153 states have internal predecessors, (260), 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 8.8) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:59:39,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:59:39,655 INFO L93 Difference]: Finished difference Result 292 states and 487 transitions. [2022-03-17 18:59:39,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:59:39,657 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (3), 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 48 [2022-03-17 18:59:39,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:59:39,664 INFO L225 Difference]: With dead ends: 292 [2022-03-17 18:59:39,664 INFO L226 Difference]: Without dead ends: 266 [2022-03-17 18:59:39,666 INFO L911 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 [2022-03-17 18:59:39,668 INFO L912 BasicCegarLoop]: 162 mSDtfsCounter, 160 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 540 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 475 SdHoareTripleChecker+Invalid, 603 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 540 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-03-17 18:59:39,668 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 475 Invalid, 603 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 540 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-03-17 18:59:39,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2022-03-17 18:59:39,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 184. [2022-03-17 18:59:39,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 179 states have (on average 1.6089385474860336) internal successors, (288), 179 states have internal predecessors, (288), 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) [2022-03-17 18:59:39,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 292 transitions. [2022-03-17 18:59:39,703 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 292 transitions. Word has length 48 [2022-03-17 18:59:39,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:59:39,703 INFO L478 AbstractCegarLoop]: Abstraction has 184 states and 292 transitions. [2022-03-17 18:59:39,703 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:59:39,703 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 292 transitions. [2022-03-17 18:59:39,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-03-17 18:59:39,705 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:59:39,705 INFO L500 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] [2022-03-17 18:59:39,705 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-17 18:59:39,705 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:59:39,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:59:39,706 INFO L85 PathProgramCache]: Analyzing trace with hash 1083746607, now seen corresponding path program 1 times [2022-03-17 18:59:39,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:59:39,706 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278829100] [2022-03-17 18:59:39,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:59:39,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:59:39,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:59:39,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:59:39,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:59:39,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:59:39,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:59:39,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278829100] [2022-03-17 18:59:39,870 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278829100] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:59:39,870 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:59:39,870 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:59:39,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030001675] [2022-03-17 18:59:39,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:59:39,871 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:59:39,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:59:39,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:59:39,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:59:39,872 INFO L87 Difference]: Start difference. First operand 184 states and 292 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:59:41,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:59:41,395 INFO L93 Difference]: Finished difference Result 212 states and 332 transitions. [2022-03-17 18:59:41,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:59:41,398 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 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 49 [2022-03-17 18:59:41,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:59:41,399 INFO L225 Difference]: With dead ends: 212 [2022-03-17 18:59:41,399 INFO L226 Difference]: Without dead ends: 212 [2022-03-17 18:59:41,400 INFO L911 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 [2022-03-17 18:59:41,400 INFO L912 BasicCegarLoop]: 190 mSDtfsCounter, 22 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 493 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-03-17 18:59:41,401 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 493 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 370 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-03-17 18:59:41,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2022-03-17 18:59:41,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 195. [2022-03-17 18:59:41,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 190 states have (on average 1.6157894736842104) internal successors, (307), 190 states have internal predecessors, (307), 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) [2022-03-17 18:59:41,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 311 transitions. [2022-03-17 18:59:41,426 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 311 transitions. Word has length 49 [2022-03-17 18:59:41,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:59:41,427 INFO L478 AbstractCegarLoop]: Abstraction has 195 states and 311 transitions. [2022-03-17 18:59:41,427 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:59:41,427 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 311 transitions. [2022-03-17 18:59:41,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-03-17 18:59:41,428 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:59:41,429 INFO L500 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] [2022-03-17 18:59:41,429 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-17 18:59:41,429 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:59:41,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:59:41,430 INFO L85 PathProgramCache]: Analyzing trace with hash -650707435, now seen corresponding path program 1 times [2022-03-17 18:59:41,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:59:41,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687606669] [2022-03-17 18:59:41,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:59:41,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:59:41,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:59:41,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:59:41,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:59:41,599 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:59:41,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:59:41,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687606669] [2022-03-17 18:59:41,599 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687606669] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:59:41,600 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:59:41,600 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:59:41,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551290640] [2022-03-17 18:59:41,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:59:41,601 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:59:41,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:59:41,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:59:41,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:59:41,601 INFO L87 Difference]: Start difference. First operand 195 states and 311 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:59:43,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:59:43,868 INFO L93 Difference]: Finished difference Result 212 states and 331 transitions. [2022-03-17 18:59:43,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:59:43,868 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (3), 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 62 [2022-03-17 18:59:43,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:59:43,870 INFO L225 Difference]: With dead ends: 212 [2022-03-17 18:59:43,870 INFO L226 Difference]: Without dead ends: 212 [2022-03-17 18:59:43,873 INFO L911 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 [2022-03-17 18:59:43,874 INFO L912 BasicCegarLoop]: 191 mSDtfsCounter, 24 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-03-17 18:59:43,874 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 495 Invalid, 378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-03-17 18:59:43,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2022-03-17 18:59:43,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 195. [2022-03-17 18:59:43,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 190 states have (on average 1.6105263157894736) internal successors, (306), 190 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) [2022-03-17 18:59:43,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 310 transitions. [2022-03-17 18:59:43,890 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 310 transitions. Word has length 62 [2022-03-17 18:59:43,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:59:43,891 INFO L478 AbstractCegarLoop]: Abstraction has 195 states and 310 transitions. [2022-03-17 18:59:43,891 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:59:43,891 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 310 transitions. [2022-03-17 18:59:43,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-03-17 18:59:43,892 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:59:43,892 INFO L500 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] [2022-03-17 18:59:43,893 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-17 18:59:43,893 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:59:43,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:59:43,893 INFO L85 PathProgramCache]: Analyzing trace with hash -833256075, now seen corresponding path program 1 times [2022-03-17 18:59:43,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:59:43,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854761330] [2022-03-17 18:59:43,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:59:43,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:59:43,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:59:44,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:59:44,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:59:44,046 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:59:44,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:59:44,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854761330] [2022-03-17 18:59:44,046 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854761330] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:59:44,046 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:59:44,046 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:59:44,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424317144] [2022-03-17 18:59:44,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:59:44,048 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:59:44,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:59:44,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:59:44,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:59:44,051 INFO L87 Difference]: Start difference. First operand 195 states and 310 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:59:46,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:59:46,112 INFO L93 Difference]: Finished difference Result 211 states and 329 transitions. [2022-03-17 18:59:46,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:59:46,113 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 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 63 [2022-03-17 18:59:46,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:59:46,114 INFO L225 Difference]: With dead ends: 211 [2022-03-17 18:59:46,114 INFO L226 Difference]: Without dead ends: 211 [2022-03-17 18:59:46,114 INFO L911 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 [2022-03-17 18:59:46,115 INFO L912 BasicCegarLoop]: 192 mSDtfsCounter, 28 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 366 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 497 SdHoareTripleChecker+Invalid, 375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-03-17 18:59:46,115 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 497 Invalid, 375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 366 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-03-17 18:59:46,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2022-03-17 18:59:46,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 195. [2022-03-17 18:59:46,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 190 states have (on average 1.605263157894737) internal successors, (305), 190 states have internal predecessors, (305), 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) [2022-03-17 18:59:46,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 309 transitions. [2022-03-17 18:59:46,121 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 309 transitions. Word has length 63 [2022-03-17 18:59:46,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:59:46,121 INFO L478 AbstractCegarLoop]: Abstraction has 195 states and 309 transitions. [2022-03-17 18:59:46,121 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:59:46,121 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 309 transitions. [2022-03-17 18:59:46,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-03-17 18:59:46,122 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:59:46,122 INFO L500 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] [2022-03-17 18:59:46,123 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-17 18:59:46,123 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:59:46,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:59:46,123 INFO L85 PathProgramCache]: Analyzing trace with hash -45663915, now seen corresponding path program 1 times [2022-03-17 18:59:46,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:59:46,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933350551] [2022-03-17 18:59:46,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:59:46,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:59:46,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:59:46,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:59:46,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:59:46,259 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:59:46,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:59:46,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933350551] [2022-03-17 18:59:46,261 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933350551] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:59:46,261 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:59:46,261 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:59:46,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693076116] [2022-03-17 18:59:46,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:59:46,262 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:59:46,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:59:46,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:59:46,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:59:46,262 INFO L87 Difference]: Start difference. First operand 195 states and 309 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:59:48,271 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:59:48,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:59:48,790 INFO L93 Difference]: Finished difference Result 316 states and 496 transitions. [2022-03-17 18:59:48,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:59:48,791 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 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 63 [2022-03-17 18:59:48,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:59:48,792 INFO L225 Difference]: With dead ends: 316 [2022-03-17 18:59:48,792 INFO L226 Difference]: Without dead ends: 316 [2022-03-17 18:59:48,793 INFO L911 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 [2022-03-17 18:59:48,793 INFO L912 BasicCegarLoop]: 122 mSDtfsCounter, 155 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 64 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 356 SdHoareTripleChecker+Invalid, 543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-17 18:59:48,794 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 356 Invalid, 543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 478 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-17 18:59:48,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2022-03-17 18:59:48,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 207. [2022-03-17 18:59:48,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 202 states have (on average 1.5891089108910892) internal successors, (321), 202 states have internal predecessors, (321), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:59:48,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 325 transitions. [2022-03-17 18:59:48,799 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 325 transitions. Word has length 63 [2022-03-17 18:59:48,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:59:48,800 INFO L478 AbstractCegarLoop]: Abstraction has 207 states and 325 transitions. [2022-03-17 18:59:48,800 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:59:48,800 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 325 transitions. [2022-03-17 18:59:48,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-03-17 18:59:48,801 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:59:48,801 INFO L500 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] [2022-03-17 18:59:48,801 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-17 18:59:48,801 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:59:48,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:59:48,802 INFO L85 PathProgramCache]: Analyzing trace with hash 1721349397, now seen corresponding path program 1 times [2022-03-17 18:59:48,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:59:48,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345658896] [2022-03-17 18:59:48,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:59:48,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:59:48,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:59:48,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:59:48,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:59:48,909 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:59:48,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:59:48,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345658896] [2022-03-17 18:59:48,909 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345658896] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:59:48,910 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:59:48,910 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:59:48,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598133442] [2022-03-17 18:59:48,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:59:48,910 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:59:48,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:59:48,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:59:48,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:59:48,911 INFO L87 Difference]: Start difference. First operand 207 states and 325 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:59:50,640 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:59:53,112 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:59:54,638 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 [] [2022-03-17 18:59:55,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:59:55,086 INFO L93 Difference]: Finished difference Result 316 states and 493 transitions. [2022-03-17 18:59:55,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:59:55,087 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 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 63 [2022-03-17 18:59:55,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:59:55,088 INFO L225 Difference]: With dead ends: 316 [2022-03-17 18:59:55,088 INFO L226 Difference]: Without dead ends: 316 [2022-03-17 18:59:55,088 INFO L911 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 [2022-03-17 18:59:55,092 INFO L912 BasicCegarLoop]: 122 mSDtfsCounter, 149 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 64 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 356 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-03-17 18:59:55,092 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 356 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 481 Invalid, 1 Unknown, 0 Unchecked, 6.1s Time] [2022-03-17 18:59:55,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2022-03-17 18:59:55,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 212. [2022-03-17 18:59:55,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 207 states have (on average 1.5845410628019323) internal successors, (328), 207 states have internal predecessors, (328), 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) [2022-03-17 18:59:55,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 332 transitions. [2022-03-17 18:59:55,103 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 332 transitions. Word has length 63 [2022-03-17 18:59:55,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:59:55,103 INFO L478 AbstractCegarLoop]: Abstraction has 212 states and 332 transitions. [2022-03-17 18:59:55,103 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:59:55,103 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 332 transitions. [2022-03-17 18:59:55,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-03-17 18:59:55,104 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:59:55,104 INFO L500 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] [2022-03-17 18:59:55,104 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-17 18:59:55,104 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:59:55,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:59:55,105 INFO L85 PathProgramCache]: Analyzing trace with hash 1263473141, now seen corresponding path program 1 times [2022-03-17 18:59:55,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:59:55,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587449343] [2022-03-17 18:59:55,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:59:55,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:59:55,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:59:55,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:59:55,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:59:55,212 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:59:55,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:59:55,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587449343] [2022-03-17 18:59:55,213 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587449343] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:59:55,213 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:59:55,213 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:59:55,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329846727] [2022-03-17 18:59:55,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:59:55,214 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:59:55,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:59:55,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:59:55,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:59:55,214 INFO L87 Difference]: Start difference. First operand 212 states and 332 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:59:57,347 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:59:57,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:59:57,829 INFO L93 Difference]: Finished difference Result 315 states and 489 transitions. [2022-03-17 18:59:57,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:59:57,829 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 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 63 [2022-03-17 18:59:57,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:59:57,831 INFO L225 Difference]: With dead ends: 315 [2022-03-17 18:59:57,831 INFO L226 Difference]: Without dead ends: 315 [2022-03-17 18:59:57,831 INFO L911 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 [2022-03-17 18:59:57,831 INFO L912 BasicCegarLoop]: 123 mSDtfsCounter, 147 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-03-17 18:59:57,832 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [147 Valid, 358 Invalid, 543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 480 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-03-17 18:59:57,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2022-03-17 18:59:57,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 213. [2022-03-17 18:59:57,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 208 states have (on average 1.5721153846153846) internal successors, (327), 208 states have internal predecessors, (327), 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) [2022-03-17 18:59:57,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 331 transitions. [2022-03-17 18:59:57,836 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 331 transitions. Word has length 63 [2022-03-17 18:59:57,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:59:57,836 INFO L478 AbstractCegarLoop]: Abstraction has 213 states and 331 transitions. [2022-03-17 18:59:57,837 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:59:57,837 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 331 transitions. [2022-03-17 18:59:57,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-03-17 18:59:57,837 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:59:57,837 INFO L500 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] [2022-03-17 18:59:57,837 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-17 18:59:57,838 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:59:57,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:59:57,838 INFO L85 PathProgramCache]: Analyzing trace with hash -1359784043, now seen corresponding path program 1 times [2022-03-17 18:59:57,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:59:57,838 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001564286] [2022-03-17 18:59:57,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:59:57,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:59:57,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:59:57,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:59:57,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:59:57,940 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:59:57,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:59:57,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001564286] [2022-03-17 18:59:57,941 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001564286] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:59:57,941 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:59:57,941 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:59:57,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430937679] [2022-03-17 18:59:57,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:59:57,941 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:59:57,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:59:57,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:59:57,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:59:57,942 INFO L87 Difference]: Start difference. First operand 213 states and 331 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:59:59,063 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:00:00,069 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:00:02,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:00:02,106 INFO L93 Difference]: Finished difference Result 315 states and 486 transitions. [2022-03-17 19:00:02,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:00:02,106 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 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 64 [2022-03-17 19:00:02,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:00:02,108 INFO L225 Difference]: With dead ends: 315 [2022-03-17 19:00:02,108 INFO L226 Difference]: Without dead ends: 315 [2022-03-17 19:00:02,108 INFO L911 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 [2022-03-17 19:00:02,109 INFO L912 BasicCegarLoop]: 123 mSDtfsCounter, 151 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-03-17 19:00:02,109 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 358 Invalid, 543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 480 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-03-17 19:00:02,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2022-03-17 19:00:02,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 213. [2022-03-17 19:00:02,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 208 states have (on average 1.5576923076923077) internal successors, (324), 208 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) [2022-03-17 19:00:02,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 328 transitions. [2022-03-17 19:00:02,114 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 328 transitions. Word has length 64 [2022-03-17 19:00:02,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:00:02,118 INFO L478 AbstractCegarLoop]: Abstraction has 213 states and 328 transitions. [2022-03-17 19:00:02,118 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:00:02,118 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 328 transitions. [2022-03-17 19:00:02,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-03-17 19:00:02,118 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:00:02,119 INFO L500 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] [2022-03-17 19:00:02,119 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-17 19:00:02,119 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:00:02,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:00:02,119 INFO L85 PathProgramCache]: Analyzing trace with hash 413743057, now seen corresponding path program 1 times [2022-03-17 19:00:02,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:00:02,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445112398] [2022-03-17 19:00:02,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:00:02,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:00:02,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:00:02,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:00:02,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:00:02,210 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 19:00:02,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:00:02,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445112398] [2022-03-17 19:00:02,211 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445112398] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:00:02,211 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:00:02,211 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:00:02,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4158110] [2022-03-17 19:00:02,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:00:02,212 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:00:02,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:00:02,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:00:02,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:00:02,213 INFO L87 Difference]: Start difference. First operand 213 states and 328 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) [2022-03-17 19:00:04,669 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:00:06,687 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:00:06,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:00:06,984 INFO L93 Difference]: Finished difference Result 226 states and 344 transitions. [2022-03-17 19:00:06,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:00:06,984 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 [2022-03-17 19:00:06,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:00:06,985 INFO L225 Difference]: With dead ends: 226 [2022-03-17 19:00:06,985 INFO L226 Difference]: Without dead ends: 226 [2022-03-17 19:00:06,985 INFO L911 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 [2022-03-17 19:00:06,986 INFO L912 BasicCegarLoop]: 195 mSDtfsCounter, 20 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-03-17 19:00:06,986 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 503 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 359 Invalid, 1 Unknown, 0 Unchecked, 4.8s Time] [2022-03-17 19:00:06,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2022-03-17 19:00:06,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 213. [2022-03-17 19:00:06,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 208 states have (on average 1.5528846153846154) internal successors, (323), 208 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) [2022-03-17 19:00:06,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 327 transitions. [2022-03-17 19:00:06,990 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 327 transitions. Word has length 65 [2022-03-17 19:00:06,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:00:06,990 INFO L478 AbstractCegarLoop]: Abstraction has 213 states and 327 transitions. [2022-03-17 19:00:06,990 INFO L479 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) [2022-03-17 19:00:06,990 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 327 transitions. [2022-03-17 19:00:06,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-03-17 19:00:06,990 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:00:06,990 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:00:06,991 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-17 19:00:06,991 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:00:06,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:00:06,993 INFO L85 PathProgramCache]: Analyzing trace with hash 303433714, now seen corresponding path program 1 times [2022-03-17 19:00:06,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:00:06,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133435226] [2022-03-17 19:00:06,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:00:06,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:00:07,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:00:07,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:00:07,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:00:07,080 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 19:00:07,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:00:07,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133435226] [2022-03-17 19:00:07,081 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133435226] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:00:07,081 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:00:07,081 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:00:07,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044569303] [2022-03-17 19:00:07,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:00:07,081 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:00:07,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:00:07,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:00:07,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:00:07,082 INFO L87 Difference]: Start difference. First operand 213 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) [2022-03-17 19:00:09,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:00:09,464 INFO L93 Difference]: Finished difference Result 216 states and 330 transitions. [2022-03-17 19:00:09,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:00:09,464 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 [2022-03-17 19:00:09,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:00:09,465 INFO L225 Difference]: With dead ends: 216 [2022-03-17 19:00:09,465 INFO L226 Difference]: Without dead ends: 216 [2022-03-17 19:00:09,465 INFO L911 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 [2022-03-17 19:00:09,466 INFO L912 BasicCegarLoop]: 202 mSDtfsCounter, 11 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 346 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 517 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 19:00:09,466 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 517 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 346 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 19:00:09,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2022-03-17 19:00:09,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 213. [2022-03-17 19:00:09,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 208 states have (on average 1.5480769230769231) internal successors, (322), 208 states have internal predecessors, (322), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:00:09,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 326 transitions. [2022-03-17 19:00:09,469 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 326 transitions. Word has length 66 [2022-03-17 19:00:09,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:00:09,470 INFO L478 AbstractCegarLoop]: Abstraction has 213 states and 326 transitions. [2022-03-17 19:00:09,470 INFO L479 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) [2022-03-17 19:00:09,470 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 326 transitions. [2022-03-17 19:00:09,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-03-17 19:00:09,470 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:00:09,470 INFO L500 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] [2022-03-17 19:00:09,471 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-17 19:00:09,471 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:00:09,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:00:09,471 INFO L85 PathProgramCache]: Analyzing trace with hash 15292259, now seen corresponding path program 1 times [2022-03-17 19:00:09,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:00:09,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411229419] [2022-03-17 19:00:09,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:00:09,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:00:09,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:00:09,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:00:09,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:00:09,607 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 19:00:09,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:00:09,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411229419] [2022-03-17 19:00:09,608 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411229419] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:00:09,608 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:00:09,608 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:00:09,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302749929] [2022-03-17 19:00:09,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:00:09,608 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:00:09,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:00:09,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:00:09,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:00:09,609 INFO L87 Difference]: Start difference. First operand 213 states and 326 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) [2022-03-17 19:00:11,431 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 [] [2022-03-17 19:00:13,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:00:13,098 INFO L93 Difference]: Finished difference Result 315 states and 483 transitions. [2022-03-17 19:00:13,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:00:13,099 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 [2022-03-17 19:00:13,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:00:13,106 INFO L225 Difference]: With dead ends: 315 [2022-03-17 19:00:13,106 INFO L226 Difference]: Without dead ends: 315 [2022-03-17 19:00:13,106 INFO L911 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 [2022-03-17 19:00:13,106 INFO L912 BasicCegarLoop]: 130 mSDtfsCounter, 124 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-03-17 19:00:13,107 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 372 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 487 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-03-17 19:00:13,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2022-03-17 19:00:13,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 235. [2022-03-17 19:00:13,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235 states, 230 states have (on average 1.5869565217391304) internal successors, (365), 230 states have internal predecessors, (365), 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) [2022-03-17 19:00:13,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 369 transitions. [2022-03-17 19:00:13,111 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 369 transitions. Word has length 66 [2022-03-17 19:00:13,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:00:13,111 INFO L478 AbstractCegarLoop]: Abstraction has 235 states and 369 transitions. [2022-03-17 19:00:13,111 INFO L479 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) [2022-03-17 19:00:13,111 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 369 transitions. [2022-03-17 19:00:13,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-03-17 19:00:13,112 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:00:13,112 INFO L500 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] [2022-03-17 19:00:13,112 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-17 19:00:13,112 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:00:13,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:00:13,113 INFO L85 PathProgramCache]: Analyzing trace with hash -1382857682, now seen corresponding path program 1 times [2022-03-17 19:00:13,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:00:13,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613647851] [2022-03-17 19:00:13,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:00:13,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:00:13,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:00:13,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:00:13,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:00:13,214 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-03-17 19:00:13,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:00:13,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613647851] [2022-03-17 19:00:13,215 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613647851] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:00:13,215 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:00:13,215 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:00:13,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129034372] [2022-03-17 19:00:13,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:00:13,215 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:00:13,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:00:13,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:00:13,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:00:13,216 INFO L87 Difference]: Start difference. First operand 235 states and 369 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 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) [2022-03-17 19:00:15,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:00:15,277 INFO L93 Difference]: Finished difference Result 277 states and 429 transitions. [2022-03-17 19:00:15,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:00:15,278 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 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 94 [2022-03-17 19:00:15,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:00:15,279 INFO L225 Difference]: With dead ends: 277 [2022-03-17 19:00:15,279 INFO L226 Difference]: Without dead ends: 277 [2022-03-17 19:00:15,279 INFO L911 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 [2022-03-17 19:00:15,280 INFO L912 BasicCegarLoop]: 199 mSDtfsCounter, 30 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 400 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 517 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 400 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-03-17 19:00:15,280 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 517 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 400 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-03-17 19:00:15,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2022-03-17 19:00:15,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 257. [2022-03-17 19:00:15,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 252 states have (on average 1.5833333333333333) internal successors, (399), 252 states have internal predecessors, (399), 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) [2022-03-17 19:00:15,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 403 transitions. [2022-03-17 19:00:15,284 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 403 transitions. Word has length 94 [2022-03-17 19:00:15,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:00:15,284 INFO L478 AbstractCegarLoop]: Abstraction has 257 states and 403 transitions. [2022-03-17 19:00:15,284 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 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) [2022-03-17 19:00:15,284 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 403 transitions. [2022-03-17 19:00:15,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-03-17 19:00:15,285 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:00:15,285 INFO L500 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] [2022-03-17 19:00:15,285 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-17 19:00:15,285 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:00:15,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:00:15,286 INFO L85 PathProgramCache]: Analyzing trace with hash -328030164, now seen corresponding path program 1 times [2022-03-17 19:00:15,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:00:15,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772592228] [2022-03-17 19:00:15,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:00:15,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:00:15,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:00:15,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:00:15,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:00:15,383 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-17 19:00:15,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:00:15,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772592228] [2022-03-17 19:00:15,384 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772592228] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:00:15,384 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:00:15,384 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:00:15,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937282279] [2022-03-17 19:00:15,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:00:15,384 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:00:15,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:00:15,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:00:15,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:00:15,385 INFO L87 Difference]: Start difference. First operand 257 states and 403 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:00:16,518 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 [] [2022-03-17 19:00:17,586 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 [] [2022-03-17 19:00:18,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:00:18,712 INFO L93 Difference]: Finished difference Result 375 states and 581 transitions. [2022-03-17 19:00:18,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:00:18,713 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 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 107 [2022-03-17 19:00:18,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:00:18,714 INFO L225 Difference]: With dead ends: 375 [2022-03-17 19:00:18,714 INFO L226 Difference]: Without dead ends: 375 [2022-03-17 19:00:18,714 INFO L911 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 [2022-03-17 19:00:18,715 INFO L912 BasicCegarLoop]: 248 mSDtfsCounter, 147 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 602 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 608 SdHoareTripleChecker+Invalid, 647 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 602 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-03-17 19:00:18,715 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [147 Valid, 608 Invalid, 647 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 602 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-03-17 19:00:18,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2022-03-17 19:00:18,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 273. [2022-03-17 19:00:18,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 268 states have (on average 1.5708955223880596) internal successors, (421), 268 states have internal predecessors, (421), 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) [2022-03-17 19:00:18,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 425 transitions. [2022-03-17 19:00:18,722 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 425 transitions. Word has length 107 [2022-03-17 19:00:18,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:00:18,723 INFO L478 AbstractCegarLoop]: Abstraction has 273 states and 425 transitions. [2022-03-17 19:00:18,723 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:00:18,723 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 425 transitions. [2022-03-17 19:00:18,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-03-17 19:00:18,724 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:00:18,724 INFO L500 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] [2022-03-17 19:00:18,724 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-17 19:00:18,724 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:00:18,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:00:18,724 INFO L85 PathProgramCache]: Analyzing trace with hash 177090676, now seen corresponding path program 1 times [2022-03-17 19:00:18,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:00:18,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750665802] [2022-03-17 19:00:18,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:00:18,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:00:18,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:00:18,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:00:18,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:00:18,833 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-03-17 19:00:18,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:00:18,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750665802] [2022-03-17 19:00:18,834 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1750665802] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:00:18,834 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:00:18,834 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:00:18,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876458406] [2022-03-17 19:00:18,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:00:18,834 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:00:18,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:00:18,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:00:18,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:00:18,835 INFO L87 Difference]: Start difference. First operand 273 states and 425 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:00:21,489 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 [] [2022-03-17 19:00:22,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:00:22,517 INFO L93 Difference]: Finished difference Result 286 states and 440 transitions. [2022-03-17 19:00:22,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:00:22,517 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (3), 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 108 [2022-03-17 19:00:22,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:00:22,519 INFO L225 Difference]: With dead ends: 286 [2022-03-17 19:00:22,519 INFO L226 Difference]: Without dead ends: 286 [2022-03-17 19:00:22,519 INFO L911 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 [2022-03-17 19:00:22,520 INFO L912 BasicCegarLoop]: 232 mSDtfsCounter, 20 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 582 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-03-17 19:00:22,520 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 582 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-03-17 19:00:22,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2022-03-17 19:00:22,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 273. [2022-03-17 19:00:22,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 268 states have (on average 1.5671641791044777) internal successors, (420), 268 states have internal predecessors, (420), 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) [2022-03-17 19:00:22,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 424 transitions. [2022-03-17 19:00:22,525 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 424 transitions. Word has length 108 [2022-03-17 19:00:22,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:00:22,525 INFO L478 AbstractCegarLoop]: Abstraction has 273 states and 424 transitions. [2022-03-17 19:00:22,526 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:00:22,526 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 424 transitions. [2022-03-17 19:00:22,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-17 19:00:22,526 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:00:22,527 INFO L500 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] [2022-03-17 19:00:22,527 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-17 19:00:22,527 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:00:22,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:00:22,527 INFO L85 PathProgramCache]: Analyzing trace with hash -521407407, now seen corresponding path program 1 times [2022-03-17 19:00:22,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:00:22,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342461106] [2022-03-17 19:00:22,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:00:22,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:00:22,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:00:22,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:00:22,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:00:22,654 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-03-17 19:00:22,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:00:22,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342461106] [2022-03-17 19:00:22,654 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342461106] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:00:22,654 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:00:22,654 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-17 19:00:22,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711773577] [2022-03-17 19:00:22,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:00:22,655 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-17 19:00:22,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:00:22,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-17 19:00:22,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-17 19:00:22,657 INFO L87 Difference]: Start difference. First operand 273 states and 424 transitions. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:00:25,511 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 [] [2022-03-17 19:00:27,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:00:27,903 INFO L93 Difference]: Finished difference Result 282 states and 435 transitions. [2022-03-17 19:00:27,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-17 19:00:27,904 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 1 states have call successors, (3), 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 109 [2022-03-17 19:00:27,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:00:27,905 INFO L225 Difference]: With dead ends: 282 [2022-03-17 19:00:27,905 INFO L226 Difference]: Without dead ends: 282 [2022-03-17 19:00:27,905 INFO L911 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 [2022-03-17 19:00:27,906 INFO L912 BasicCegarLoop]: 207 mSDtfsCounter, 3 mSDsluCounter, 442 mSDsCounter, 0 mSdLazyCounter, 439 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 649 SdHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 439 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-03-17 19:00:27,906 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 649 Invalid, 444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 439 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2022-03-17 19:00:27,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2022-03-17 19:00:27,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 282. [2022-03-17 19:00:27,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 277 states have (on average 1.555956678700361) internal successors, (431), 277 states have internal predecessors, (431), 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) [2022-03-17 19:00:27,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 435 transitions. [2022-03-17 19:00:27,910 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 435 transitions. Word has length 109 [2022-03-17 19:00:27,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:00:27,910 INFO L478 AbstractCegarLoop]: Abstraction has 282 states and 435 transitions. [2022-03-17 19:00:27,910 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:00:27,910 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 435 transitions. [2022-03-17 19:00:27,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-03-17 19:00:27,911 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:00:27,911 INFO L500 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] [2022-03-17 19:00:27,911 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-17 19:00:27,911 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:00:27,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:00:27,912 INFO L85 PathProgramCache]: Analyzing trace with hash -1010693003, now seen corresponding path program 1 times [2022-03-17 19:00:27,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:00:27,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604624249] [2022-03-17 19:00:27,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:00:27,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:00:27,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:00:28,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:00:28,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:00:28,026 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-17 19:00:28,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:00:28,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604624249] [2022-03-17 19:00:28,028 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604624249] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:00:28,028 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:00:28,028 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:00:28,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916979088] [2022-03-17 19:00:28,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:00:28,028 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:00:28,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:00:28,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:00:28,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:00:28,029 INFO L87 Difference]: Start difference. First operand 282 states and 435 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 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) [2022-03-17 19:00:30,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:00:30,718 INFO L93 Difference]: Finished difference Result 371 states and 556 transitions. [2022-03-17 19:00:30,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:00:30,719 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 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 111 [2022-03-17 19:00:30,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:00:30,720 INFO L225 Difference]: With dead ends: 371 [2022-03-17 19:00:30,720 INFO L226 Difference]: Without dead ends: 371 [2022-03-17 19:00:30,720 INFO L911 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 [2022-03-17 19:00:30,721 INFO L912 BasicCegarLoop]: 130 mSDtfsCounter, 149 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-03-17 19:00:30,721 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 372 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 487 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-03-17 19:00:30,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2022-03-17 19:00:30,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 282. [2022-03-17 19:00:30,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 277 states have (on average 1.5415162454873645) internal successors, (427), 277 states have internal predecessors, (427), 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) [2022-03-17 19:00:30,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 431 transitions. [2022-03-17 19:00:30,726 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 431 transitions. Word has length 111 [2022-03-17 19:00:30,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:00:30,726 INFO L478 AbstractCegarLoop]: Abstraction has 282 states and 431 transitions. [2022-03-17 19:00:30,726 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 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) [2022-03-17 19:00:30,726 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 431 transitions. [2022-03-17 19:00:30,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-03-17 19:00:30,727 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:00:30,727 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 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] [2022-03-17 19:00:30,727 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-17 19:00:30,727 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:00:30,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:00:30,728 INFO L85 PathProgramCache]: Analyzing trace with hash 1517189340, now seen corresponding path program 1 times [2022-03-17 19:00:30,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:00:30,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829809141] [2022-03-17 19:00:30,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:00:30,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:00:30,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:00:30,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:00:30,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:00:30,834 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-17 19:00:30,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:00:30,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829809141] [2022-03-17 19:00:30,834 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1829809141] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:00:30,834 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:00:30,834 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:00:30,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778984262] [2022-03-17 19:00:30,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:00:30,835 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:00:30,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:00:30,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:00:30,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:00:30,836 INFO L87 Difference]: Start difference. First operand 282 states and 431 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 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) [2022-03-17 19:00:33,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:00:33,081 INFO L93 Difference]: Finished difference Result 299 states and 452 transitions. [2022-03-17 19:00:33,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:00:33,082 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 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 112 [2022-03-17 19:00:33,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:00:33,083 INFO L225 Difference]: With dead ends: 299 [2022-03-17 19:00:33,083 INFO L226 Difference]: Without dead ends: 299 [2022-03-17 19:00:33,083 INFO L911 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 [2022-03-17 19:00:33,083 INFO L912 BasicCegarLoop]: 203 mSDtfsCounter, 33 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-03-17 19:00:33,084 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 523 Invalid, 403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 393 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-03-17 19:00:33,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2022-03-17 19:00:33,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 282. [2022-03-17 19:00:33,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 277 states have (on average 1.5379061371841156) internal successors, (426), 277 states have internal predecessors, (426), 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) [2022-03-17 19:00:33,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 430 transitions. [2022-03-17 19:00:33,088 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 430 transitions. Word has length 112 [2022-03-17 19:00:33,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:00:33,088 INFO L478 AbstractCegarLoop]: Abstraction has 282 states and 430 transitions. [2022-03-17 19:00:33,088 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 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) [2022-03-17 19:00:33,088 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 430 transitions. [2022-03-17 19:00:33,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-03-17 19:00:33,089 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:00:33,089 INFO L500 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] [2022-03-17 19:00:33,089 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-17 19:00:33,089 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:00:33,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:00:33,089 INFO L85 PathProgramCache]: Analyzing trace with hash -527302323, now seen corresponding path program 1 times [2022-03-17 19:00:33,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:00:33,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194984482] [2022-03-17 19:00:33,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:00:33,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:00:33,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:00:33,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:00:33,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:00:33,192 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-17 19:00:33,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:00:33,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194984482] [2022-03-17 19:00:33,192 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194984482] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:00:33,192 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:00:33,192 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:00:33,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860449321] [2022-03-17 19:00:33,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:00:33,193 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:00:33,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:00:33,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:00:33,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:00:33,193 INFO L87 Difference]: Start difference. First operand 282 states and 430 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) [2022-03-17 19:00:34,349 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:00:35,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:00:35,954 INFO L93 Difference]: Finished difference Result 388 states and 587 transitions. [2022-03-17 19:00:35,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:00:35,955 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 116 [2022-03-17 19:00:35,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:00:35,956 INFO L225 Difference]: With dead ends: 388 [2022-03-17 19:00:35,956 INFO L226 Difference]: Without dead ends: 388 [2022-03-17 19:00:35,956 INFO L911 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 [2022-03-17 19:00:35,957 INFO L912 BasicCegarLoop]: 199 mSDtfsCounter, 92 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 529 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 517 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-03-17 19:00:35,957 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [92 Valid, 517 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 529 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-03-17 19:00:35,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2022-03-17 19:00:35,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 316. [2022-03-17 19:00:35,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 311 states have (on average 1.5434083601286173) internal successors, (480), 311 states have internal predecessors, (480), 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) [2022-03-17 19:00:35,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 484 transitions. [2022-03-17 19:00:35,962 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 484 transitions. Word has length 116 [2022-03-17 19:00:35,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:00:35,962 INFO L478 AbstractCegarLoop]: Abstraction has 316 states and 484 transitions. [2022-03-17 19:00:35,962 INFO L479 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) [2022-03-17 19:00:35,962 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 484 transitions. [2022-03-17 19:00:35,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-03-17 19:00:35,963 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:00:35,963 INFO L500 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] [2022-03-17 19:00:35,963 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-17 19:00:35,963 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:00:35,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:00:35,964 INFO L85 PathProgramCache]: Analyzing trace with hash 2097151404, now seen corresponding path program 1 times [2022-03-17 19:00:35,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:00:35,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968104592] [2022-03-17 19:00:35,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:00:35,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:00:36,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:00:36,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:00:36,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:00:36,061 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-17 19:00:36,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:00:36,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968104592] [2022-03-17 19:00:36,061 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968104592] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:00:36,061 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:00:36,061 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:00:36,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564138202] [2022-03-17 19:00:36,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:00:36,062 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:00:36,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:00:36,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:00:36,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:00:36,063 INFO L87 Difference]: Start difference. First operand 316 states and 484 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) [2022-03-17 19:00:38,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:00:38,374 INFO L93 Difference]: Finished difference Result 481 states and 737 transitions. [2022-03-17 19:00:38,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:00:38,375 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 116 [2022-03-17 19:00:38,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:00:38,376 INFO L225 Difference]: With dead ends: 481 [2022-03-17 19:00:38,376 INFO L226 Difference]: Without dead ends: 481 [2022-03-17 19:00:38,376 INFO L911 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 [2022-03-17 19:00:38,377 INFO L912 BasicCegarLoop]: 136 mSDtfsCounter, 129 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-17 19:00:38,377 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [129 Valid, 384 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-03-17 19:00:38,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2022-03-17 19:00:38,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 346. [2022-03-17 19:00:38,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 341 states have (on average 1.5542521994134897) internal successors, (530), 341 states have internal predecessors, (530), 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) [2022-03-17 19:00:38,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 534 transitions. [2022-03-17 19:00:38,382 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 534 transitions. Word has length 116 [2022-03-17 19:00:38,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:00:38,382 INFO L478 AbstractCegarLoop]: Abstraction has 346 states and 534 transitions. [2022-03-17 19:00:38,382 INFO L479 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) [2022-03-17 19:00:38,383 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 534 transitions. [2022-03-17 19:00:38,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-03-17 19:00:38,384 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:00:38,384 INFO L500 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] [2022-03-17 19:00:38,384 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-17 19:00:38,384 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:00:38,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:00:38,385 INFO L85 PathProgramCache]: Analyzing trace with hash 775708070, now seen corresponding path program 1 times [2022-03-17 19:00:38,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:00:38,385 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159358789] [2022-03-17 19:00:38,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:00:38,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:00:38,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:00:38,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:00:38,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:00:38,487 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2022-03-17 19:00:38,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:00:38,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159358789] [2022-03-17 19:00:38,487 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159358789] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:00:38,488 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:00:38,488 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:00:38,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119139823] [2022-03-17 19:00:38,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:00:38,489 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:00:38,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:00:38,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:00:38,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:00:38,489 INFO L87 Difference]: Start difference. First operand 346 states and 534 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 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) [2022-03-17 19:00:41,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:00:41,047 INFO L93 Difference]: Finished difference Result 425 states and 641 transitions. [2022-03-17 19:00:41,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:00:41,047 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 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 121 [2022-03-17 19:00:41,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:00:41,051 INFO L225 Difference]: With dead ends: 425 [2022-03-17 19:00:41,051 INFO L226 Difference]: Without dead ends: 425 [2022-03-17 19:00:41,051 INFO L911 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 [2022-03-17 19:00:41,052 INFO L912 BasicCegarLoop]: 123 mSDtfsCounter, 151 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-17 19:00:41,052 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 358 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-03-17 19:00:41,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425 states. [2022-03-17 19:00:41,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425 to 346. [2022-03-17 19:00:41,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 341 states have (on average 1.5366568914956011) internal successors, (524), 341 states have internal predecessors, (524), 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) [2022-03-17 19:00:41,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 528 transitions. [2022-03-17 19:00:41,056 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 528 transitions. Word has length 121 [2022-03-17 19:00:41,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:00:41,057 INFO L478 AbstractCegarLoop]: Abstraction has 346 states and 528 transitions. [2022-03-17 19:00:41,057 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 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) [2022-03-17 19:00:41,057 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 528 transitions. [2022-03-17 19:00:41,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-03-17 19:00:41,057 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:00:41,057 INFO L500 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] [2022-03-17 19:00:41,058 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-17 19:00:41,058 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:00:41,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:00:41,058 INFO L85 PathProgramCache]: Analyzing trace with hash 763597463, now seen corresponding path program 1 times [2022-03-17 19:00:41,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:00:41,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837603482] [2022-03-17 19:00:41,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:00:41,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:00:41,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:00:41,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:00:41,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:00:41,153 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-17 19:00:41,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:00:41,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837603482] [2022-03-17 19:00:41,153 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837603482] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:00:41,153 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:00:41,154 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:00:41,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280874199] [2022-03-17 19:00:41,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:00:41,154 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:00:41,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:00:41,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:00:41,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:00:41,155 INFO L87 Difference]: Start difference. First operand 346 states and 528 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) [2022-03-17 19:00:42,550 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:00:45,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:00:45,112 INFO L93 Difference]: Finished difference Result 442 states and 671 transitions. [2022-03-17 19:00:45,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:00:45,112 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 122 [2022-03-17 19:00:45,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:00:45,114 INFO L225 Difference]: With dead ends: 442 [2022-03-17 19:00:45,114 INFO L226 Difference]: Without dead ends: 442 [2022-03-17 19:00:45,114 INFO L911 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 [2022-03-17 19:00:45,114 INFO L912 BasicCegarLoop]: 188 mSDtfsCounter, 85 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 514 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 514 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-03-17 19:00:45,115 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [85 Valid, 495 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 514 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-03-17 19:00:45,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2022-03-17 19:00:45,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 385. [2022-03-17 19:00:45,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 385 states, 380 states have (on average 1.5421052631578946) internal successors, (586), 380 states have internal predecessors, (586), 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) [2022-03-17 19:00:45,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 590 transitions. [2022-03-17 19:00:45,120 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 590 transitions. Word has length 122 [2022-03-17 19:00:45,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:00:45,120 INFO L478 AbstractCegarLoop]: Abstraction has 385 states and 590 transitions. [2022-03-17 19:00:45,120 INFO L479 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) [2022-03-17 19:00:45,120 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 590 transitions. [2022-03-17 19:00:45,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-03-17 19:00:45,121 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:00:45,121 INFO L500 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] [2022-03-17 19:00:45,121 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-03-17 19:00:45,121 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:00:45,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:00:45,121 INFO L85 PathProgramCache]: Analyzing trace with hash 1207208886, now seen corresponding path program 1 times [2022-03-17 19:00:45,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:00:45,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817547479] [2022-03-17 19:00:45,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:00:45,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:00:45,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:00:45,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:00:45,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:00:45,204 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-17 19:00:45,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:00:45,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817547479] [2022-03-17 19:00:45,204 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817547479] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:00:45,204 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:00:45,204 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:00:45,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491647825] [2022-03-17 19:00:45,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:00:45,205 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:00:45,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:00:45,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:00:45,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:00:45,205 INFO L87 Difference]: Start difference. First operand 385 states and 590 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) [2022-03-17 19:00:47,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:00:47,567 INFO L93 Difference]: Finished difference Result 504 states and 766 transitions. [2022-03-17 19:00:47,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:00:47,568 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 122 [2022-03-17 19:00:47,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:00:47,569 INFO L225 Difference]: With dead ends: 504 [2022-03-17 19:00:47,569 INFO L226 Difference]: Without dead ends: 504 [2022-03-17 19:00:47,569 INFO L911 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 [2022-03-17 19:00:47,570 INFO L912 BasicCegarLoop]: 123 mSDtfsCounter, 124 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-17 19:00:47,570 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 358 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 478 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-03-17 19:00:47,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 504 states. [2022-03-17 19:00:47,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 504 to 383. [2022-03-17 19:00:47,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 378 states have (on average 1.5423280423280423) internal successors, (583), 378 states have internal predecessors, (583), 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) [2022-03-17 19:00:47,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 587 transitions. [2022-03-17 19:00:47,577 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 587 transitions. Word has length 122 [2022-03-17 19:00:47,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:00:47,577 INFO L478 AbstractCegarLoop]: Abstraction has 383 states and 587 transitions. [2022-03-17 19:00:47,577 INFO L479 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) [2022-03-17 19:00:47,577 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 587 transitions. [2022-03-17 19:00:47,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-03-17 19:00:47,578 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:00:47,578 INFO L500 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] [2022-03-17 19:00:47,578 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-17 19:00:47,579 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:00:47,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:00:47,579 INFO L85 PathProgramCache]: Analyzing trace with hash -1514824195, now seen corresponding path program 1 times [2022-03-17 19:00:47,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:00:47,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002672920] [2022-03-17 19:00:47,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:00:47,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:00:47,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:00:47,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:00:47,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:00:47,681 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-17 19:00:47,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:00:47,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002672920] [2022-03-17 19:00:47,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002672920] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:00:47,681 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:00:47,681 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:00:47,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181889497] [2022-03-17 19:00:47,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:00:47,682 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:00:47,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:00:47,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:00:47,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:00:47,683 INFO L87 Difference]: Start difference. First operand 383 states and 587 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) [2022-03-17 19:00:48,755 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 [] [2022-03-17 19:00:50,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:00:50,668 INFO L93 Difference]: Finished difference Result 462 states and 698 transitions. [2022-03-17 19:00:50,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:00:50,668 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 123 [2022-03-17 19:00:50,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:00:50,669 INFO L225 Difference]: With dead ends: 462 [2022-03-17 19:00:50,669 INFO L226 Difference]: Without dead ends: 462 [2022-03-17 19:00:50,670 INFO L911 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 [2022-03-17 19:00:50,670 INFO L912 BasicCegarLoop]: 123 mSDtfsCounter, 123 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-03-17 19:00:50,670 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 358 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-03-17 19:00:50,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 462 states. [2022-03-17 19:00:50,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 462 to 383. [2022-03-17 19:00:50,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 378 states have (on average 1.537037037037037) internal successors, (581), 378 states have internal predecessors, (581), 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) [2022-03-17 19:00:50,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 585 transitions. [2022-03-17 19:00:50,678 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 585 transitions. Word has length 123 [2022-03-17 19:00:50,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:00:50,678 INFO L478 AbstractCegarLoop]: Abstraction has 383 states and 585 transitions. [2022-03-17 19:00:50,679 INFO L479 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) [2022-03-17 19:00:50,679 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 585 transitions. [2022-03-17 19:00:50,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-03-17 19:00:50,680 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:00:50,680 INFO L500 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] [2022-03-17 19:00:50,680 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-03-17 19:00:50,680 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:00:50,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:00:50,680 INFO L85 PathProgramCache]: Analyzing trace with hash 407133951, now seen corresponding path program 1 times [2022-03-17 19:00:50,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:00:50,681 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26808111] [2022-03-17 19:00:50,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:00:50,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:00:50,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:00:50,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:00:50,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:00:50,780 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-17 19:00:50,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:00:50,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26808111] [2022-03-17 19:00:50,781 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [26808111] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:00:50,781 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:00:50,781 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:00:50,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498652449] [2022-03-17 19:00:50,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:00:50,781 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:00:50,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:00:50,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:00:50,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:00:50,782 INFO L87 Difference]: Start difference. First operand 383 states and 585 transitions. Second operand has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 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) [2022-03-17 19:00:52,379 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 [] [2022-03-17 19:00:54,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:00:54,174 INFO L93 Difference]: Finished difference Result 470 states and 713 transitions. [2022-03-17 19:00:54,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:00:54,185 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 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 130 [2022-03-17 19:00:54,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:00:54,187 INFO L225 Difference]: With dead ends: 470 [2022-03-17 19:00:54,187 INFO L226 Difference]: Without dead ends: 470 [2022-03-17 19:00:54,187 INFO L911 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 [2022-03-17 19:00:54,188 INFO L912 BasicCegarLoop]: 188 mSDtfsCounter, 68 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 501 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-03-17 19:00:54,189 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [68 Valid, 495 Invalid, 512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 501 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-03-17 19:00:54,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2022-03-17 19:00:54,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 426. [2022-03-17 19:00:54,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 426 states, 421 states have (on average 1.5368171021377672) internal successors, (647), 421 states have internal predecessors, (647), 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) [2022-03-17 19:00:54,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 651 transitions. [2022-03-17 19:00:54,196 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 651 transitions. Word has length 130 [2022-03-17 19:00:54,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:00:54,196 INFO L478 AbstractCegarLoop]: Abstraction has 426 states and 651 transitions. [2022-03-17 19:00:54,196 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 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) [2022-03-17 19:00:54,196 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 651 transitions. [2022-03-17 19:00:54,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-03-17 19:00:54,197 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:00:54,197 INFO L500 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] [2022-03-17 19:00:54,197 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-03-17 19:00:54,197 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:00:54,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:00:54,198 INFO L85 PathProgramCache]: Analyzing trace with hash 1190512926, now seen corresponding path program 1 times [2022-03-17 19:00:54,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:00:54,198 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187640065] [2022-03-17 19:00:54,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:00:54,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:00:54,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:00:54,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:00:54,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:00:54,298 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-03-17 19:00:54,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:00:54,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187640065] [2022-03-17 19:00:54,298 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187640065] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:00:54,298 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:00:54,298 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:00:54,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272526699] [2022-03-17 19:00:54,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:00:54,299 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:00:54,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:00:54,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:00:54,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:00:54,299 INFO L87 Difference]: Start difference. First operand 426 states and 651 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) [2022-03-17 19:00:57,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:00:57,308 INFO L93 Difference]: Finished difference Result 472 states and 716 transitions. [2022-03-17 19:00:57,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:00:57,308 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 130 [2022-03-17 19:00:57,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:00:57,310 INFO L225 Difference]: With dead ends: 472 [2022-03-17 19:00:57,310 INFO L226 Difference]: Without dead ends: 472 [2022-03-17 19:00:57,310 INFO L911 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 [2022-03-17 19:00:57,310 INFO L912 BasicCegarLoop]: 248 mSDtfsCounter, 35 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 613 SdHoareTripleChecker+Invalid, 470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-03-17 19:00:57,311 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 613 Invalid, 470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 461 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-03-17 19:00:57,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2022-03-17 19:00:57,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 450. [2022-03-17 19:00:57,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 450 states, 445 states have (on average 1.5325842696629213) internal successors, (682), 445 states have internal predecessors, (682), 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) [2022-03-17 19:00:57,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 686 transitions. [2022-03-17 19:00:57,316 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 686 transitions. Word has length 130 [2022-03-17 19:00:57,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:00:57,316 INFO L478 AbstractCegarLoop]: Abstraction has 450 states and 686 transitions. [2022-03-17 19:00:57,316 INFO L479 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) [2022-03-17 19:00:57,316 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 686 transitions. [2022-03-17 19:00:57,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-03-17 19:00:57,317 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:00:57,317 INFO L500 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] [2022-03-17 19:00:57,317 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-03-17 19:00:57,317 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:00:57,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:00:57,317 INFO L85 PathProgramCache]: Analyzing trace with hash 2135869213, now seen corresponding path program 1 times [2022-03-17 19:00:57,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:00:57,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408464370] [2022-03-17 19:00:57,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:00:57,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:00:57,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:00:57,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:00:57,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:00:57,410 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-17 19:00:57,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:00:57,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408464370] [2022-03-17 19:00:57,411 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408464370] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:00:57,411 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:00:57,411 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:00:57,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611862800] [2022-03-17 19:00:57,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:00:57,412 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:00:57,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:00:57,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:00:57,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:00:57,412 INFO L87 Difference]: Start difference. First operand 450 states and 686 transitions. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:00:59,437 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 [] [2022-03-17 19:00:59,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:00:59,831 INFO L93 Difference]: Finished difference Result 569 states and 856 transitions. [2022-03-17 19:00:59,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:00:59,831 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 143 [2022-03-17 19:00:59,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:00:59,833 INFO L225 Difference]: With dead ends: 569 [2022-03-17 19:00:59,833 INFO L226 Difference]: Without dead ends: 569 [2022-03-17 19:00:59,833 INFO L911 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 [2022-03-17 19:00:59,833 INFO L912 BasicCegarLoop]: 131 mSDtfsCounter, 130 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 19:00:59,833 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 374 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 488 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 19:00:59,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 569 states. [2022-03-17 19:00:59,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 569 to 480. [2022-03-17 19:00:59,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 480 states, 475 states have (on average 1.5242105263157895) internal successors, (724), 475 states have internal predecessors, (724), 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) [2022-03-17 19:00:59,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 480 states and 728 transitions. [2022-03-17 19:00:59,839 INFO L78 Accepts]: Start accepts. Automaton has 480 states and 728 transitions. Word has length 143 [2022-03-17 19:00:59,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:00:59,840 INFO L478 AbstractCegarLoop]: Abstraction has 480 states and 728 transitions. [2022-03-17 19:00:59,840 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:00:59,840 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states and 728 transitions. [2022-03-17 19:00:59,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-03-17 19:00:59,841 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:00:59,841 INFO L500 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] [2022-03-17 19:00:59,841 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-03-17 19:00:59,841 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:00:59,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:00:59,841 INFO L85 PathProgramCache]: Analyzing trace with hash 1981672196, now seen corresponding path program 1 times [2022-03-17 19:00:59,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:00:59,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102007352] [2022-03-17 19:00:59,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:00:59,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:00:59,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:00:59,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:00:59,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:00:59,945 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-17 19:00:59,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:00:59,945 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102007352] [2022-03-17 19:00:59,945 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102007352] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:00:59,945 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:00:59,945 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:00:59,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881887344] [2022-03-17 19:00:59,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:00:59,945 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:00:59,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:00:59,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:00:59,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:00:59,946 INFO L87 Difference]: Start difference. First operand 480 states and 728 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:01:01,424 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 [] [2022-03-17 19:01:03,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:01:03,759 INFO L93 Difference]: Finished difference Result 522 states and 787 transitions. [2022-03-17 19:01:03,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:01:03,760 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 144 [2022-03-17 19:01:03,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:01:03,761 INFO L225 Difference]: With dead ends: 522 [2022-03-17 19:01:03,761 INFO L226 Difference]: Without dead ends: 522 [2022-03-17 19:01:03,762 INFO L911 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 [2022-03-17 19:01:03,762 INFO L912 BasicCegarLoop]: 190 mSDtfsCounter, 75 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-03-17 19:01:03,762 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [75 Valid, 499 Invalid, 508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-03-17 19:01:03,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522 states. [2022-03-17 19:01:03,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522 to 480. [2022-03-17 19:01:03,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 480 states, 475 states have (on average 1.5221052631578946) internal successors, (723), 475 states have internal predecessors, (723), 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) [2022-03-17 19:01:03,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 480 states and 727 transitions. [2022-03-17 19:01:03,768 INFO L78 Accepts]: Start accepts. Automaton has 480 states and 727 transitions. Word has length 144 [2022-03-17 19:01:03,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:01:03,768 INFO L478 AbstractCegarLoop]: Abstraction has 480 states and 727 transitions. [2022-03-17 19:01:03,768 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:01:03,769 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states and 727 transitions. [2022-03-17 19:01:03,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-03-17 19:01:03,769 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:01:03,769 INFO L500 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 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] [2022-03-17 19:01:03,770 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-03-17 19:01:03,770 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:01:03,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:01:03,770 INFO L85 PathProgramCache]: Analyzing trace with hash 1271113360, now seen corresponding path program 1 times [2022-03-17 19:01:03,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:01:03,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376503190] [2022-03-17 19:01:03,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:01:03,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:01:03,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:01:03,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:01:03,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:01:03,870 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-03-17 19:01:03,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:01:03,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376503190] [2022-03-17 19:01:03,870 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376503190] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:01:03,870 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:01:03,870 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:01:03,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233852105] [2022-03-17 19:01:03,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:01:03,871 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:01:03,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:01:03,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:01:03,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:01:03,871 INFO L87 Difference]: Start difference. First operand 480 states and 727 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) [2022-03-17 19:01:06,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:01:06,062 INFO L93 Difference]: Finished difference Result 549 states and 818 transitions. [2022-03-17 19:01:06,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:01:06,063 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 [2022-03-17 19:01:06,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:01:06,064 INFO L225 Difference]: With dead ends: 549 [2022-03-17 19:01:06,064 INFO L226 Difference]: Without dead ends: 549 [2022-03-17 19:01:06,065 INFO L911 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 [2022-03-17 19:01:06,065 INFO L912 BasicCegarLoop]: 141 mSDtfsCounter, 138 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-03-17 19:01:06,065 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 394 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 474 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-03-17 19:01:06,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2022-03-17 19:01:06,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 480. [2022-03-17 19:01:06,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 480 states, 475 states have (on average 1.503157894736842) internal successors, (714), 475 states have internal predecessors, (714), 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) [2022-03-17 19:01:06,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 480 states and 718 transitions. [2022-03-17 19:01:06,070 INFO L78 Accepts]: Start accepts. Automaton has 480 states and 718 transitions. Word has length 146 [2022-03-17 19:01:06,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:01:06,070 INFO L478 AbstractCegarLoop]: Abstraction has 480 states and 718 transitions. [2022-03-17 19:01:06,070 INFO L479 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) [2022-03-17 19:01:06,070 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states and 718 transitions. [2022-03-17 19:01:06,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-03-17 19:01:06,071 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:01:06,071 INFO L500 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] [2022-03-17 19:01:06,072 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-03-17 19:01:06,072 INFO L403 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:01:06,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:01:06,072 INFO L85 PathProgramCache]: Analyzing trace with hash -1044031091, now seen corresponding path program 1 times [2022-03-17 19:01:06,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:01:06,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722964602] [2022-03-17 19:01:06,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:01:06,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:01:06,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:01:06,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:01:06,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:01:06,177 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-17 19:01:06,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:01:06,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722964602] [2022-03-17 19:01:06,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722964602] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:01:06,178 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:01:06,178 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:01:06,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99279733] [2022-03-17 19:01:06,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:01:06,178 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:01:06,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:01:06,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:01:06,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:01:06,179 INFO L87 Difference]: Start difference. First operand 480 states and 718 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) [2022-03-17 19:01:07,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:01:07,986 INFO L93 Difference]: Finished difference Result 512 states and 764 transitions. [2022-03-17 19:01:07,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:01:07,987 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 [2022-03-17 19:01:07,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:01:07,989 INFO L225 Difference]: With dead ends: 512 [2022-03-17 19:01:07,989 INFO L226 Difference]: Without dead ends: 512 [2022-03-17 19:01:07,989 INFO L911 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 [2022-03-17 19:01:07,989 INFO L912 BasicCegarLoop]: 197 mSDtfsCounter, 69 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-03-17 19:01:07,990 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 513 Invalid, 490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 483 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-03-17 19:01:07,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states. [2022-03-17 19:01:07,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 480. [2022-03-17 19:01:07,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 480 states, 475 states have (on average 1.5010526315789474) internal successors, (713), 475 states have internal predecessors, (713), 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) [2022-03-17 19:01:07,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 480 states and 717 transitions. [2022-03-17 19:01:07,996 INFO L78 Accepts]: Start accepts. Automaton has 480 states and 717 transitions. Word has length 147 [2022-03-17 19:01:07,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:01:07,996 INFO L478 AbstractCegarLoop]: Abstraction has 480 states and 717 transitions. [2022-03-17 19:01:07,996 INFO L479 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) [2022-03-17 19:01:07,996 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states and 717 transitions. [2022-03-17 19:01:07,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-03-17 19:01:07,998 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:01:07,998 INFO L500 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] [2022-03-17 19:01:07,998 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-03-17 19:01:07,998 INFO L403 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:01:07,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:01:07,998 INFO L85 PathProgramCache]: Analyzing trace with hash -604167374, now seen corresponding path program 1 times [2022-03-17 19:01:07,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:01:07,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574449947] [2022-03-17 19:01:07,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:01:07,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:01:08,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:01:08,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:01:08,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:01:08,104 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-17 19:01:08,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:01:08,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574449947] [2022-03-17 19:01:08,104 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574449947] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:01:08,104 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:01:08,104 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:01:08,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478649049] [2022-03-17 19:01:08,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:01:08,105 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:01:08,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:01:08,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:01:08,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:01:08,105 INFO L87 Difference]: Start difference. First operand 480 states and 717 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) [2022-03-17 19:01:10,528 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 [] [2022-03-17 19:01:11,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:01:11,435 INFO L93 Difference]: Finished difference Result 549 states and 810 transitions. [2022-03-17 19:01:11,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:01:11,435 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 148 [2022-03-17 19:01:11,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:01:11,443 INFO L225 Difference]: With dead ends: 549 [2022-03-17 19:01:11,443 INFO L226 Difference]: Without dead ends: 549 [2022-03-17 19:01:11,444 INFO L911 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 [2022-03-17 19:01:11,444 INFO L912 BasicCegarLoop]: 133 mSDtfsCounter, 123 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-03-17 19:01:11,444 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 378 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 466 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-03-17 19:01:11,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2022-03-17 19:01:11,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 480. [2022-03-17 19:01:11,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 480 states, 475 states have (on average 1.4863157894736843) internal successors, (706), 475 states have internal predecessors, (706), 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) [2022-03-17 19:01:11,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 480 states and 710 transitions. [2022-03-17 19:01:11,450 INFO L78 Accepts]: Start accepts. Automaton has 480 states and 710 transitions. Word has length 148 [2022-03-17 19:01:11,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:01:11,450 INFO L478 AbstractCegarLoop]: Abstraction has 480 states and 710 transitions. [2022-03-17 19:01:11,450 INFO L479 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) [2022-03-17 19:01:11,450 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states and 710 transitions. [2022-03-17 19:01:11,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-03-17 19:01:11,451 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:01:11,451 INFO L500 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:01:11,451 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-03-17 19:01:11,451 INFO L403 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:01:11,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:01:11,452 INFO L85 PathProgramCache]: Analyzing trace with hash -1752426755, now seen corresponding path program 1 times [2022-03-17 19:01:11,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:01:11,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985088613] [2022-03-17 19:01:11,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:01:11,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:01:11,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:01:11,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:01:11,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:01:11,556 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-03-17 19:01:11,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:01:11,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985088613] [2022-03-17 19:01:11,557 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985088613] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:01:11,557 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:01:11,557 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:01:11,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034267880] [2022-03-17 19:01:11,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:01:11,557 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:01:11,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:01:11,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:01:11,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:01:11,558 INFO L87 Difference]: Start difference. First operand 480 states and 710 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) [2022-03-17 19:01:13,613 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 [] [2022-03-17 19:01:14,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:01:14,572 INFO L93 Difference]: Finished difference Result 549 states and 803 transitions. [2022-03-17 19:01:14,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:01:14,573 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 152 [2022-03-17 19:01:14,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:01:14,574 INFO L225 Difference]: With dead ends: 549 [2022-03-17 19:01:14,574 INFO L226 Difference]: Without dead ends: 549 [2022-03-17 19:01:14,574 INFO L911 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 [2022-03-17 19:01:14,575 INFO L912 BasicCegarLoop]: 140 mSDtfsCounter, 127 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-03-17 19:01:14,575 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [127 Valid, 392 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 475 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-03-17 19:01:14,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2022-03-17 19:01:14,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 480. [2022-03-17 19:01:14,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 480 states, 475 states have (on average 1.471578947368421) internal successors, (699), 475 states have internal predecessors, (699), 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) [2022-03-17 19:01:14,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 480 states and 703 transitions. [2022-03-17 19:01:14,579 INFO L78 Accepts]: Start accepts. Automaton has 480 states and 703 transitions. Word has length 152 [2022-03-17 19:01:14,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:01:14,580 INFO L478 AbstractCegarLoop]: Abstraction has 480 states and 703 transitions. [2022-03-17 19:01:14,580 INFO L479 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) [2022-03-17 19:01:14,580 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states and 703 transitions. [2022-03-17 19:01:14,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-03-17 19:01:14,581 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:01:14,581 INFO L500 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:01:14,581 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-03-17 19:01:14,581 INFO L403 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:01:14,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:01:14,581 INFO L85 PathProgramCache]: Analyzing trace with hash -1057779748, now seen corresponding path program 1 times [2022-03-17 19:01:14,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:01:14,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073435672] [2022-03-17 19:01:14,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:01:14,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:01:14,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:01:14,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:01:14,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:01:14,673 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 137 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-03-17 19:01:14,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:01:14,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073435672] [2022-03-17 19:01:14,674 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073435672] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:01:14,674 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:01:14,674 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 19:01:14,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147251393] [2022-03-17 19:01:14,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:01:14,674 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 19:01:14,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:01:14,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 19:01:14,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 19:01:14,675 INFO L87 Difference]: Start difference. First operand 480 states and 703 transitions. Second operand has 4 states, 4 states have (on average 30.0) internal successors, (120), 3 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:01:16,965 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 [] [2022-03-17 19:01:17,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:01:17,224 INFO L93 Difference]: Finished difference Result 929 states and 1358 transitions. [2022-03-17 19:01:17,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 19:01:17,224 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.0) internal successors, (120), 3 states have internal predecessors, (120), 1 states have call successors, (3), 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 152 [2022-03-17 19:01:17,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:01:17,226 INFO L225 Difference]: With dead ends: 929 [2022-03-17 19:01:17,227 INFO L226 Difference]: Without dead ends: 929 [2022-03-17 19:01:17,227 INFO L911 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 [2022-03-17 19:01:17,227 INFO L912 BasicCegarLoop]: 239 mSDtfsCounter, 136 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 433 SdHoareTripleChecker+Invalid, 303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-17 19:01:17,227 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 433 Invalid, 303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-03-17 19:01:17,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 929 states. [2022-03-17 19:01:17,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 929 to 927. [2022-03-17 19:01:17,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 927 states, 922 states have (on average 1.467462039045553) internal successors, (1353), 922 states have internal predecessors, (1353), 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) [2022-03-17 19:01:17,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 927 states to 927 states and 1357 transitions. [2022-03-17 19:01:17,237 INFO L78 Accepts]: Start accepts. Automaton has 927 states and 1357 transitions. Word has length 152 [2022-03-17 19:01:17,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:01:17,237 INFO L478 AbstractCegarLoop]: Abstraction has 927 states and 1357 transitions. [2022-03-17 19:01:17,237 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.0) internal successors, (120), 3 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:01:17,238 INFO L276 IsEmpty]: Start isEmpty. Operand 927 states and 1357 transitions. [2022-03-17 19:01:17,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-03-17 19:01:17,239 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:01:17,239 INFO L500 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:01:17,239 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-03-17 19:01:17,239 INFO L403 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:01:17,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:01:17,240 INFO L85 PathProgramCache]: Analyzing trace with hash 1301527261, now seen corresponding path program 1 times [2022-03-17 19:01:17,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:01:17,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298026082] [2022-03-17 19:01:17,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:01:17,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:01:17,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:01:17,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:01:17,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:01:17,363 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 137 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-03-17 19:01:17,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:01:17,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298026082] [2022-03-17 19:01:17,364 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298026082] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:01:17,364 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:01:17,364 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-17 19:01:17,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579412540] [2022-03-17 19:01:17,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:01:17,364 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-17 19:01:17,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:01:17,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-17 19:01:17,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-17 19:01:17,365 INFO L87 Difference]: Start difference. First operand 927 states and 1357 transitions. Second operand has 6 states, 6 states have (on average 20.0) internal successors, (120), 5 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:01:18,746 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:01:20,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:01:20,948 INFO L93 Difference]: Finished difference Result 1427 states and 2084 transitions. [2022-03-17 19:01:20,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-17 19:01:20,949 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.0) internal successors, (120), 5 states have internal predecessors, (120), 1 states have call successors, (3), 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 152 [2022-03-17 19:01:20,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:01:20,952 INFO L225 Difference]: With dead ends: 1427 [2022-03-17 19:01:20,952 INFO L226 Difference]: Without dead ends: 1427 [2022-03-17 19:01:20,952 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-03-17 19:01:20,953 INFO L912 BasicCegarLoop]: 259 mSDtfsCounter, 89 mSDsluCounter, 558 mSDsCounter, 0 mSdLazyCounter, 750 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 817 SdHoareTripleChecker+Invalid, 769 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 750 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-03-17 19:01:20,954 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [89 Valid, 817 Invalid, 769 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 750 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-03-17 19:01:20,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1427 states. [2022-03-17 19:01:20,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1427 to 1410. [2022-03-17 19:01:20,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1410 states, 1405 states have (on average 1.4690391459074734) internal successors, (2064), 1405 states have internal predecessors, (2064), 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) [2022-03-17 19:01:20,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1410 states to 1410 states and 2068 transitions. [2022-03-17 19:01:20,966 INFO L78 Accepts]: Start accepts. Automaton has 1410 states and 2068 transitions. Word has length 152 [2022-03-17 19:01:20,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:01:20,967 INFO L478 AbstractCegarLoop]: Abstraction has 1410 states and 2068 transitions. [2022-03-17 19:01:20,967 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.0) internal successors, (120), 5 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:01:20,967 INFO L276 IsEmpty]: Start isEmpty. Operand 1410 states and 2068 transitions. [2022-03-17 19:01:20,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-17 19:01:20,970 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:01:20,970 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:01:20,970 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-03-17 19:01:20,970 INFO L403 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:01:20,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:01:20,971 INFO L85 PathProgramCache]: Analyzing trace with hash -40691048, now seen corresponding path program 1 times [2022-03-17 19:01:20,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:01:20,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167190334] [2022-03-17 19:01:20,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:01:20,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:01:21,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:01:21,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:01:21,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:01:21,057 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 124 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-03-17 19:01:21,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:01:21,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167190334] [2022-03-17 19:01:21,058 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167190334] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:01:21,058 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:01:21,058 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:01:21,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700899039] [2022-03-17 19:01:21,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:01:21,058 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:01:21,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:01:21,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:01:21,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:01:21,059 INFO L87 Difference]: Start difference. First operand 1410 states and 2068 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) [2022-03-17 19:01:23,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:01:23,314 INFO L93 Difference]: Finished difference Result 1468 states and 2141 transitions. [2022-03-17 19:01:23,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:01:23,315 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 153 [2022-03-17 19:01:23,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:01:23,318 INFO L225 Difference]: With dead ends: 1468 [2022-03-17 19:01:23,318 INFO L226 Difference]: Without dead ends: 1468 [2022-03-17 19:01:23,318 INFO L911 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 [2022-03-17 19:01:23,319 INFO L912 BasicCegarLoop]: 208 mSDtfsCounter, 54 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-03-17 19:01:23,319 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [54 Valid, 535 Invalid, 468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 461 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-03-17 19:01:23,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1468 states. [2022-03-17 19:01:23,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1468 to 1410. [2022-03-17 19:01:23,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1410 states, 1405 states have (on average 1.4669039145907474) internal successors, (2061), 1405 states have internal predecessors, (2061), 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) [2022-03-17 19:01:23,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1410 states to 1410 states and 2065 transitions. [2022-03-17 19:01:23,346 INFO L78 Accepts]: Start accepts. Automaton has 1410 states and 2065 transitions. Word has length 153 [2022-03-17 19:01:23,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:01:23,346 INFO L478 AbstractCegarLoop]: Abstraction has 1410 states and 2065 transitions. [2022-03-17 19:01:23,346 INFO L479 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) [2022-03-17 19:01:23,346 INFO L276 IsEmpty]: Start isEmpty. Operand 1410 states and 2065 transitions. [2022-03-17 19:01:23,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-03-17 19:01:23,349 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:01:23,349 INFO L500 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] [2022-03-17 19:01:23,349 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-03-17 19:01:23,349 INFO L403 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:01:23,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:01:23,349 INFO L85 PathProgramCache]: Analyzing trace with hash 379346722, now seen corresponding path program 1 times [2022-03-17 19:01:23,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:01:23,349 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440504532] [2022-03-17 19:01:23,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:01:23,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:01:23,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:01:23,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:01:23,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:01:23,451 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-03-17 19:01:23,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:01:23,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440504532] [2022-03-17 19:01:23,451 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440504532] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:01:23,451 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:01:23,452 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:01:23,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747636575] [2022-03-17 19:01:23,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:01:23,452 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:01:23,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:01:23,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:01:23,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:01:23,452 INFO L87 Difference]: Start difference. First operand 1410 states and 2065 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) [2022-03-17 19:01:26,041 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:01:28,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:01:28,389 INFO L93 Difference]: Finished difference Result 1800 states and 2611 transitions. [2022-03-17 19:01:28,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:01:28,390 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 155 [2022-03-17 19:01:28,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:01:28,394 INFO L225 Difference]: With dead ends: 1800 [2022-03-17 19:01:28,394 INFO L226 Difference]: Without dead ends: 1800 [2022-03-17 19:01:28,394 INFO L911 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 [2022-03-17 19:01:28,394 INFO L912 BasicCegarLoop]: 133 mSDtfsCounter, 116 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-03-17 19:01:28,395 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 378 Invalid, 519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 467 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-03-17 19:01:28,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1800 states. [2022-03-17 19:01:28,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1800 to 1550. [2022-03-17 19:01:28,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1550 states, 1545 states have (on average 1.4614886731391585) internal successors, (2258), 1545 states have internal predecessors, (2258), 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) [2022-03-17 19:01:28,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1550 states to 1550 states and 2262 transitions. [2022-03-17 19:01:28,417 INFO L78 Accepts]: Start accepts. Automaton has 1550 states and 2262 transitions. Word has length 155 [2022-03-17 19:01:28,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:01:28,418 INFO L478 AbstractCegarLoop]: Abstraction has 1550 states and 2262 transitions. [2022-03-17 19:01:28,418 INFO L479 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) [2022-03-17 19:01:28,418 INFO L276 IsEmpty]: Start isEmpty. Operand 1550 states and 2262 transitions. [2022-03-17 19:01:28,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-03-17 19:01:28,420 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:01:28,420 INFO L500 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] [2022-03-17 19:01:28,420 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-03-17 19:01:28,420 INFO L403 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:01:28,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:01:28,421 INFO L85 PathProgramCache]: Analyzing trace with hash -1248589795, now seen corresponding path program 1 times [2022-03-17 19:01:28,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:01:28,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840814498] [2022-03-17 19:01:28,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:01:28,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:01:28,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:01:28,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:01:28,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:01:28,506 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-03-17 19:01:28,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:01:28,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840814498] [2022-03-17 19:01:28,507 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840814498] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:01:28,507 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:01:28,507 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:01:28,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983221246] [2022-03-17 19:01:28,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:01:28,508 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:01:28,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:01:28,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:01:28,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:01:28,508 INFO L87 Difference]: Start difference. First operand 1550 states and 2262 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) [2022-03-17 19:01:31,657 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:01:32,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:01:32,414 INFO L93 Difference]: Finished difference Result 1683 states and 2431 transitions. [2022-03-17 19:01:32,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:01:32,414 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 156 [2022-03-17 19:01:32,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:01:32,418 INFO L225 Difference]: With dead ends: 1683 [2022-03-17 19:01:32,418 INFO L226 Difference]: Without dead ends: 1683 [2022-03-17 19:01:32,418 INFO L911 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 [2022-03-17 19:01:32,418 INFO L912 BasicCegarLoop]: 133 mSDtfsCounter, 115 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-03-17 19:01:32,418 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 378 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 466 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-03-17 19:01:32,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1683 states. [2022-03-17 19:01:32,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1683 to 1548. [2022-03-17 19:01:32,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1548 states, 1543 states have (on average 1.4523655217109528) internal successors, (2241), 1543 states have internal predecessors, (2241), 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) [2022-03-17 19:01:32,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1548 states to 1548 states and 2245 transitions. [2022-03-17 19:01:32,441 INFO L78 Accepts]: Start accepts. Automaton has 1548 states and 2245 transitions. Word has length 156 [2022-03-17 19:01:32,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:01:32,442 INFO L478 AbstractCegarLoop]: Abstraction has 1548 states and 2245 transitions. [2022-03-17 19:01:32,442 INFO L479 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) [2022-03-17 19:01:32,442 INFO L276 IsEmpty]: Start isEmpty. Operand 1548 states and 2245 transitions. [2022-03-17 19:01:32,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-03-17 19:01:32,445 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:01:32,445 INFO L500 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, 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] [2022-03-17 19:01:32,445 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-03-17 19:01:32,446 INFO L403 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:01:32,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:01:32,446 INFO L85 PathProgramCache]: Analyzing trace with hash 1614304247, now seen corresponding path program 1 times [2022-03-17 19:01:32,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:01:32,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818297001] [2022-03-17 19:01:32,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:01:32,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:01:32,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:01:32,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:01:32,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:01:32,554 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 126 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-03-17 19:01:32,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:01:32,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818297001] [2022-03-17 19:01:32,555 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818297001] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:01:32,555 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:01:32,555 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:01:32,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500655871] [2022-03-17 19:01:32,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:01:32,556 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:01:32,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:01:32,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:01:32,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:01:32,557 INFO L87 Difference]: Start difference. First operand 1548 states and 2245 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) [2022-03-17 19:01:34,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:01:34,525 INFO L93 Difference]: Finished difference Result 1932 states and 2764 transitions. [2022-03-17 19:01:34,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:01:34,525 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 158 [2022-03-17 19:01:34,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:01:34,530 INFO L225 Difference]: With dead ends: 1932 [2022-03-17 19:01:34,530 INFO L226 Difference]: Without dead ends: 1932 [2022-03-17 19:01:34,530 INFO L911 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 [2022-03-17 19:01:34,530 INFO L912 BasicCegarLoop]: 164 mSDtfsCounter, 124 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 498 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 440 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 498 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-03-17 19:01:34,530 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 440 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 498 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-03-17 19:01:34,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1932 states. [2022-03-17 19:01:34,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1932 to 1652. [2022-03-17 19:01:34,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1652 states, 1647 states have (on average 1.4365513054037644) internal successors, (2366), 1647 states have internal predecessors, (2366), 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) [2022-03-17 19:01:34,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1652 states to 1652 states and 2370 transitions. [2022-03-17 19:01:34,546 INFO L78 Accepts]: Start accepts. Automaton has 1652 states and 2370 transitions. Word has length 158 [2022-03-17 19:01:34,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:01:34,547 INFO L478 AbstractCegarLoop]: Abstraction has 1652 states and 2370 transitions. [2022-03-17 19:01:34,547 INFO L479 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) [2022-03-17 19:01:34,547 INFO L276 IsEmpty]: Start isEmpty. Operand 1652 states and 2370 transitions. [2022-03-17 19:01:34,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2022-03-17 19:01:34,549 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:01:34,549 INFO L500 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, 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] [2022-03-17 19:01:34,549 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-03-17 19:01:34,549 INFO L403 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:01:34,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:01:34,549 INFO L85 PathProgramCache]: Analyzing trace with hash 1346965296, now seen corresponding path program 1 times [2022-03-17 19:01:34,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:01:34,550 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35847525] [2022-03-17 19:01:34,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:01:34,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:01:34,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:01:34,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:01:34,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:01:34,669 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-03-17 19:01:34,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:01:34,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35847525] [2022-03-17 19:01:34,669 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [35847525] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:01:34,669 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:01:34,669 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:01:34,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213807552] [2022-03-17 19:01:34,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:01:34,671 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:01:34,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:01:34,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:01:34,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:01:34,671 INFO L87 Difference]: Start difference. First operand 1652 states and 2370 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) [2022-03-17 19:01:37,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:01:37,138 INFO L93 Difference]: Finished difference Result 1695 states and 2423 transitions. [2022-03-17 19:01:37,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:01:37,139 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 159 [2022-03-17 19:01:37,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:01:37,142 INFO L225 Difference]: With dead ends: 1695 [2022-03-17 19:01:37,142 INFO L226 Difference]: Without dead ends: 1695 [2022-03-17 19:01:37,142 INFO L911 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 [2022-03-17 19:01:37,145 INFO L912 BasicCegarLoop]: 212 mSDtfsCounter, 44 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 543 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-17 19:01:37,145 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [44 Valid, 543 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 453 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-03-17 19:01:37,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1695 states. [2022-03-17 19:01:37,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1695 to 1652. [2022-03-17 19:01:37,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1652 states, 1647 states have (on average 1.4347298117789922) internal successors, (2363), 1647 states have internal predecessors, (2363), 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) [2022-03-17 19:01:37,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1652 states to 1652 states and 2367 transitions. [2022-03-17 19:01:37,157 INFO L78 Accepts]: Start accepts. Automaton has 1652 states and 2367 transitions. Word has length 159 [2022-03-17 19:01:37,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:01:37,157 INFO L478 AbstractCegarLoop]: Abstraction has 1652 states and 2367 transitions. [2022-03-17 19:01:37,157 INFO L479 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) [2022-03-17 19:01:37,157 INFO L276 IsEmpty]: Start isEmpty. Operand 1652 states and 2367 transitions. [2022-03-17 19:01:37,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2022-03-17 19:01:37,159 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:01:37,159 INFO L500 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, 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] [2022-03-17 19:01:37,159 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-03-17 19:01:37,160 INFO L403 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:01:37,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:01:37,160 INFO L85 PathProgramCache]: Analyzing trace with hash -759994909, now seen corresponding path program 1 times [2022-03-17 19:01:37,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:01:37,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387818646] [2022-03-17 19:01:37,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:01:37,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:01:37,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:01:37,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:01:37,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:01:37,257 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-03-17 19:01:37,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:01:37,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387818646] [2022-03-17 19:01:37,257 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387818646] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:01:37,258 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:01:37,258 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:01:37,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239800472] [2022-03-17 19:01:37,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:01:37,258 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:01:37,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:01:37,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:01:37,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:01:37,258 INFO L87 Difference]: Start difference. First operand 1652 states and 2367 transitions. Second operand has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:01:39,271 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 [] [2022-03-17 19:01:39,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:01:39,657 INFO L93 Difference]: Finished difference Result 1865 states and 2646 transitions. [2022-03-17 19:01:39,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:01:39,657 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 1 states have call successors, (3), 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 162 [2022-03-17 19:01:39,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:01:39,670 INFO L225 Difference]: With dead ends: 1865 [2022-03-17 19:01:39,671 INFO L226 Difference]: Without dead ends: 1865 [2022-03-17 19:01:39,673 INFO L911 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 [2022-03-17 19:01:39,673 INFO L912 BasicCegarLoop]: 133 mSDtfsCounter, 117 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 52 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 19:01:39,673 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 378 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 463 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 19:01:39,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1865 states. [2022-03-17 19:01:39,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1865 to 1718. [2022-03-17 19:01:39,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1718 states, 1713 states have (on average 1.425569176882662) internal successors, (2442), 1713 states have internal predecessors, (2442), 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) [2022-03-17 19:01:39,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1718 states to 1718 states and 2446 transitions. [2022-03-17 19:01:39,689 INFO L78 Accepts]: Start accepts. Automaton has 1718 states and 2446 transitions. Word has length 162 [2022-03-17 19:01:39,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:01:39,690 INFO L478 AbstractCegarLoop]: Abstraction has 1718 states and 2446 transitions. [2022-03-17 19:01:39,690 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:01:39,690 INFO L276 IsEmpty]: Start isEmpty. Operand 1718 states and 2446 transitions. [2022-03-17 19:01:39,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-03-17 19:01:39,692 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:01:39,692 INFO L500 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, 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] [2022-03-17 19:01:39,692 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-03-17 19:01:39,692 INFO L403 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:01:39,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:01:39,693 INFO L85 PathProgramCache]: Analyzing trace with hash 1002447303, now seen corresponding path program 1 times [2022-03-17 19:01:39,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:01:39,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890167167] [2022-03-17 19:01:39,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:01:39,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:01:39,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:01:39,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:01:39,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:01:39,807 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-03-17 19:01:39,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:01:39,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890167167] [2022-03-17 19:01:39,808 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [890167167] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:01:39,808 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:01:39,808 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:01:39,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470950125] [2022-03-17 19:01:39,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:01:39,808 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:01:39,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:01:39,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:01:39,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:01:39,809 INFO L87 Difference]: Start difference. First operand 1718 states and 2446 transitions. Second operand has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 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) [2022-03-17 19:01:42,058 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 [] [2022-03-17 19:01:42,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:01:42,446 INFO L93 Difference]: Finished difference Result 1565 states and 2217 transitions. [2022-03-17 19:01:42,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:01:42,447 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 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 163 [2022-03-17 19:01:42,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:01:42,451 INFO L225 Difference]: With dead ends: 1565 [2022-03-17 19:01:42,451 INFO L226 Difference]: Without dead ends: 1565 [2022-03-17 19:01:42,451 INFO L911 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 [2022-03-17 19:01:42,451 INFO L912 BasicCegarLoop]: 151 mSDtfsCounter, 116 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-03-17 19:01:42,452 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 414 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 484 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-03-17 19:01:42,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1565 states. [2022-03-17 19:01:42,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1565 to 1432. [2022-03-17 19:01:42,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1432 states, 1427 states have (on average 1.4218640504555011) internal successors, (2029), 1427 states have internal predecessors, (2029), 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) [2022-03-17 19:01:42,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1432 states to 1432 states and 2033 transitions. [2022-03-17 19:01:42,475 INFO L78 Accepts]: Start accepts. Automaton has 1432 states and 2033 transitions. Word has length 163 [2022-03-17 19:01:42,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:01:42,476 INFO L478 AbstractCegarLoop]: Abstraction has 1432 states and 2033 transitions. [2022-03-17 19:01:42,481 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 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) [2022-03-17 19:01:42,482 INFO L276 IsEmpty]: Start isEmpty. Operand 1432 states and 2033 transitions. [2022-03-17 19:01:42,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-03-17 19:01:42,484 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:01:42,484 INFO L500 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 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] [2022-03-17 19:01:42,484 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-03-17 19:01:42,484 INFO L403 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:01:42,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:01:42,484 INFO L85 PathProgramCache]: Analyzing trace with hash 1994642721, now seen corresponding path program 1 times [2022-03-17 19:01:42,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:01:42,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050130549] [2022-03-17 19:01:42,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:01:42,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:01:42,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:01:42,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:01:42,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:01:42,580 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 183 proven. 0 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2022-03-17 19:01:42,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:01:42,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050130549] [2022-03-17 19:01:42,580 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1050130549] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:01:42,580 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:01:42,580 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:01:42,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438633940] [2022-03-17 19:01:42,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:01:42,580 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:01:42,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:01:42,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:01:42,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:01:42,581 INFO L87 Difference]: Start difference. First operand 1432 states and 2033 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) [2022-03-17 19:01:45,659 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:01:45,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:01:45,998 INFO L93 Difference]: Finished difference Result 1486 states and 2099 transitions. [2022-03-17 19:01:45,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:01:45,999 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 166 [2022-03-17 19:01:45,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:01:46,001 INFO L225 Difference]: With dead ends: 1486 [2022-03-17 19:01:46,001 INFO L226 Difference]: Without dead ends: 1486 [2022-03-17 19:01:46,001 INFO L911 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 [2022-03-17 19:01:46,002 INFO L912 BasicCegarLoop]: 237 mSDtfsCounter, 29 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 438 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 592 SdHoareTripleChecker+Invalid, 443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 438 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-03-17 19:01:46,002 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 592 Invalid, 443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 438 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-03-17 19:01:46,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1486 states. [2022-03-17 19:01:46,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1486 to 1432. [2022-03-17 19:01:46,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1432 states, 1427 states have (on average 1.4190609670637702) internal successors, (2025), 1427 states have internal predecessors, (2025), 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) [2022-03-17 19:01:46,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1432 states to 1432 states and 2029 transitions. [2022-03-17 19:01:46,024 INFO L78 Accepts]: Start accepts. Automaton has 1432 states and 2029 transitions. Word has length 166 [2022-03-17 19:01:46,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:01:46,025 INFO L478 AbstractCegarLoop]: Abstraction has 1432 states and 2029 transitions. [2022-03-17 19:01:46,025 INFO L479 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) [2022-03-17 19:01:46,025 INFO L276 IsEmpty]: Start isEmpty. Operand 1432 states and 2029 transitions. [2022-03-17 19:01:46,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-03-17 19:01:46,027 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:01:46,027 INFO L500 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] [2022-03-17 19:01:46,027 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-03-17 19:01:46,027 INFO L403 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:01:46,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:01:46,028 INFO L85 PathProgramCache]: Analyzing trace with hash 380018882, now seen corresponding path program 1 times [2022-03-17 19:01:46,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:01:46,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524153838] [2022-03-17 19:01:46,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:01:46,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:01:46,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:01:46,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:01:46,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:01:46,296 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2022-03-17 19:01:46,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:01:46,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524153838] [2022-03-17 19:01:46,296 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524153838] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:01:46,296 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:01:46,296 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-17 19:01:46,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438110278] [2022-03-17 19:01:46,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:01:46,297 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-17 19:01:46,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:01:46,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-17 19:01:46,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-03-17 19:01:46,297 INFO L87 Difference]: Start difference. First operand 1432 states and 2029 transitions. Second operand has 7 states, 6 states have (on average 12.166666666666666) internal successors, (73), 5 states have internal predecessors, (73), 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) [2022-03-17 19:01:49,396 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:01:51,274 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:01:52,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:01:52,106 INFO L93 Difference]: Finished difference Result 1440 states and 2039 transitions. [2022-03-17 19:01:52,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-17 19:01:52,107 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 12.166666666666666) internal successors, (73), 5 states have internal predecessors, (73), 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 171 [2022-03-17 19:01:52,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:01:52,110 INFO L225 Difference]: With dead ends: 1440 [2022-03-17 19:01:52,110 INFO L226 Difference]: Without dead ends: 1432 [2022-03-17 19:01:52,111 INFO L911 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 [2022-03-17 19:01:52,111 INFO L912 BasicCegarLoop]: 213 mSDtfsCounter, 7 mSDsluCounter, 649 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 862 SdHoareTripleChecker+Invalid, 452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-03-17 19:01:52,111 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 862 Invalid, 452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 448 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2022-03-17 19:01:52,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1432 states. [2022-03-17 19:01:52,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1432 to 1432. [2022-03-17 19:01:52,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1432 states, 1427 states have (on average 1.4183601962158374) internal successors, (2024), 1427 states have internal predecessors, (2024), 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) [2022-03-17 19:01:52,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1432 states to 1432 states and 2028 transitions. [2022-03-17 19:01:52,123 INFO L78 Accepts]: Start accepts. Automaton has 1432 states and 2028 transitions. Word has length 171 [2022-03-17 19:01:52,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:01:52,123 INFO L478 AbstractCegarLoop]: Abstraction has 1432 states and 2028 transitions. [2022-03-17 19:01:52,123 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 12.166666666666666) internal successors, (73), 5 states have internal predecessors, (73), 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) [2022-03-17 19:01:52,123 INFO L276 IsEmpty]: Start isEmpty. Operand 1432 states and 2028 transitions. [2022-03-17 19:01:52,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-03-17 19:01:52,125 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:01:52,125 INFO L500 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] [2022-03-17 19:01:52,125 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-03-17 19:01:52,125 INFO L403 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:01:52,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:01:52,126 INFO L85 PathProgramCache]: Analyzing trace with hash -581606333, now seen corresponding path program 1 times [2022-03-17 19:01:52,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:01:52,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759383271] [2022-03-17 19:01:52,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:01:52,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:01:52,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:01:52,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:01:53,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:01:53,005 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 14 proven. 169 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-03-17 19:01:53,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:01:53,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759383271] [2022-03-17 19:01:53,006 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759383271] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-17 19:01:53,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1012589704] [2022-03-17 19:01:53,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:01:53,006 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 19:01:53,006 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 19:01:53,008 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) [2022-03-17 19:01:53,012 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-17 19:01:53,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:01:53,841 INFO L263 TraceCheckSpWp]: Trace formula consists of 1146 conjuncts, 203 conjunts are in the unsatisfiable core [2022-03-17 19:01:53,863 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-17 19:01:54,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:01:54,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:01:54,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:01:54,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:01:54,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:01:54,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:01:54,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:01:54,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:01:54,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:01:54,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:01:54,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:01:54,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:01:54,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:01:54,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:01:54,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:01:54,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:01:54,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:01:54,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:01:54,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:01:54,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:01:54,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:01:54,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:01:54,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:01:54,121 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 18 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11573 treesize of output 2526