/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.09.i.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-b030c9e [2022-03-20 07:36:11,662 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-20 07:36:11,663 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-20 07:36:11,698 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-20 07:36:11,698 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-20 07:36:11,699 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-20 07:36:11,701 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-20 07:36:11,703 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-20 07:36:11,705 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-20 07:36:11,709 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-20 07:36:11,710 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-20 07:36:11,711 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-20 07:36:11,711 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-20 07:36:11,712 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-20 07:36:11,713 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-20 07:36:11,716 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-20 07:36:11,716 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-20 07:36:11,717 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-20 07:36:11,719 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-20 07:36:11,722 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-20 07:36:11,724 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-20 07:36:11,725 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-20 07:36:11,725 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-20 07:36:11,726 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-20 07:36:11,726 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-20 07:36:11,728 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-20 07:36:11,728 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-20 07:36:11,728 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-20 07:36:11,729 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-20 07:36:11,729 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-20 07:36:11,730 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-03-20 07:36:11,730 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-20 07:36:11,731 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-20 07:36:11,732 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-20 07:36:11,732 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-20 07:36:11,733 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-20 07:36:11,733 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-20 07:36:11,733 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-20 07:36:11,733 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-20 07:36:11,733 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-20 07:36:11,734 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-20 07:36:11,735 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-20 07:36:11,736 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-03-20 07:36:11,744 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-20 07:36:11,744 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-20 07:36:11,745 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-20 07:36:11,745 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-20 07:36:11,745 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-20 07:36:11,746 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-20 07:36:11,746 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-20 07:36:11,746 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-20 07:36:11,746 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-20 07:36:11,746 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-20 07:36:11,746 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-20 07:36:11,747 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-20 07:36:11,747 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-20 07:36:11,747 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-20 07:36:11,747 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-20 07:36:11,747 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-20 07:36:11,747 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-20 07:36:11,747 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-20 07:36:11,747 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 07:36:11,747 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-20 07:36:11,747 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-20 07:36:11,748 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-03-20 07:36:11,748 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-20 07:36:11,926 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-20 07:36:11,940 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-20 07:36:11,941 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-20 07:36:11,942 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-20 07:36:11,943 INFO L275 PluginConnector]: CDTParser initialized [2022-03-20 07:36:11,943 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.09.i.cil-1.c [2022-03-20 07:36:12,007 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79b9eb625/984b3f89185c4a5c9cf63719274ef8dc/FLAG92d8347e5 [2022-03-20 07:36:12,447 INFO L306 CDTParser]: Found 1 translation units. [2022-03-20 07:36:12,447 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.09.i.cil-1.c [2022-03-20 07:36:12,461 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79b9eb625/984b3f89185c4a5c9cf63719274ef8dc/FLAG92d8347e5 [2022-03-20 07:36:12,480 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79b9eb625/984b3f89185c4a5c9cf63719274ef8dc [2022-03-20 07:36:12,482 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-20 07:36:12,483 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-20 07:36:12,483 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-20 07:36:12,483 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-20 07:36:12,487 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-20 07:36:12,488 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 07:36:12" (1/1) ... [2022-03-20 07:36:12,488 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5878334c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 07:36:12, skipping insertion in model container [2022-03-20 07:36:12,488 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 07:36:12" (1/1) ... [2022-03-20 07:36:12,493 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-20 07:36:12,540 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-20 07:36:12,813 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.09.i.cil-1.c[74369,74382] [2022-03-20 07:36:12,832 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 07:36:12,840 INFO L203 MainTranslator]: Completed pre-run [2022-03-20 07:36:12,979 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.09.i.cil-1.c[74369,74382] [2022-03-20 07:36:12,981 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 07:36:12,994 INFO L208 MainTranslator]: Completed translation [2022-03-20 07:36:12,995 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 07:36:12 WrapperNode [2022-03-20 07:36:12,995 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-20 07:36:12,995 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-20 07:36:12,996 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-20 07:36:12,996 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-20 07:36:13,004 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 07:36:12" (1/1) ... [2022-03-20 07:36:13,004 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 07:36:12" (1/1) ... [2022-03-20 07:36:13,034 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 07:36:12" (1/1) ... [2022-03-20 07:36:13,034 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 07:36:12" (1/1) ... [2022-03-20 07:36:13,079 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 07:36:12" (1/1) ... [2022-03-20 07:36:13,084 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 07:36:12" (1/1) ... [2022-03-20 07:36:13,086 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 07:36:12" (1/1) ... [2022-03-20 07:36:13,090 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-20 07:36:13,103 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-20 07:36:13,103 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-20 07:36:13,103 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-20 07:36:13,104 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 07:36:12" (1/1) ... [2022-03-20 07:36:13,110 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 07:36:13,118 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 07:36:13,128 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) [2022-03-20 07:36:13,154 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 [2022-03-20 07:36:13,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-20 07:36:13,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-20 07:36:13,171 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-20 07:36:13,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-03-20 07:36:13,172 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-03-20 07:36:13,172 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-20 07:36:13,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-03-20 07:36:13,172 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-03-20 07:36:13,172 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-03-20 07:36:13,173 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-03-20 07:36:13,173 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-20 07:36:13,173 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-20 07:36:13,173 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-20 07:36:13,173 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-20 07:36:13,174 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-03-20 07:36:13,175 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-03-20 07:36:13,175 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-20 07:36:13,175 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-03-20 07:36:13,175 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-03-20 07:36:13,175 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-03-20 07:36:13,175 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-03-20 07:36:13,175 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-03-20 07:36:13,176 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-03-20 07:36:13,176 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-03-20 07:36:13,176 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-03-20 07:36:13,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-03-20 07:36:13,176 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-20 07:36:13,176 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-03-20 07:36:13,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-20 07:36:13,176 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-03-20 07:36:13,176 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-20 07:36:13,176 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-03-20 07:36:13,176 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-03-20 07:36:13,176 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-20 07:36:13,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-20 07:36:13,177 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-20 07:36:13,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-03-20 07:36:13,177 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-03-20 07:36:13,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-03-20 07:36:13,177 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-03-20 07:36:13,177 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-20 07:36:13,329 INFO L234 CfgBuilder]: Building ICFG [2022-03-20 07:36:13,330 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-20 07:36:13,950 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-20 07:36:14,378 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-03-20 07:36:14,379 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-03-20 07:36:14,387 INFO L275 CfgBuilder]: Performing block encoding [2022-03-20 07:36:14,397 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-20 07:36:14,397 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-20 07:36:14,399 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 07:36:14 BoogieIcfgContainer [2022-03-20 07:36:14,399 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-20 07:36:14,400 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-03-20 07:36:14,400 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-03-20 07:36:14,401 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-03-20 07:36:14,403 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 07:36:14" (1/1) ... [2022-03-20 07:36:14,405 INFO L168 ansformationObserver]: Applying ICFG transformation LOOP_ACCELERATION_JORDAN [2022-03-20 07:36:14,452 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 20.03 07:36:14 BasicIcfg [2022-03-20 07:36:14,452 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-03-20 07:36:14,454 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-20 07:36:14,455 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-20 07:36:14,457 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-20 07:36:14,457 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.03 07:36:12" (1/4) ... [2022-03-20 07:36:14,458 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3951091c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 07:36:14, skipping insertion in model container [2022-03-20 07:36:14,458 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 07:36:12" (2/4) ... [2022-03-20 07:36:14,458 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3951091c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 07:36:14, skipping insertion in model container [2022-03-20 07:36:14,458 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 07:36:14" (3/4) ... [2022-03-20 07:36:14,458 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3951091c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.03 07:36:14, skipping insertion in model container [2022-03-20 07:36:14,458 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 20.03 07:36:14" (4/4) ... [2022-03-20 07:36:14,459 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.09.i.cil-1.cJordan [2022-03-20 07:36:14,463 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-03-20 07:36:14,463 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-20 07:36:14,504 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-20 07:36:14,511 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 [2022-03-20 07:36:14,512 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-20 07:36:14,533 INFO L276 IsEmpty]: Start isEmpty. Operand has 158 states, 150 states have (on average 1.7066666666666668) internal successors, (256), 151 states have internal predecessors, (256), 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) [2022-03-20 07:36:14,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-03-20 07:36:14,542 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:36:14,543 INFO L499 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] [2022-03-20 07:36:14,543 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:36:14,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:36:14,548 INFO L85 PathProgramCache]: Analyzing trace with hash -1099342272, now seen corresponding path program 1 times [2022-03-20 07:36:14,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:36:14,557 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778513113] [2022-03-20 07:36:14,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:36:14,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:36:14,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:36:14,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:36:14,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:36:14,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 07:36:14,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:36:14,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778513113] [2022-03-20 07:36:14,991 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778513113] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:36:14,992 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:36:14,992 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:36:14,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813143353] [2022-03-20 07:36:14,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:36:14,996 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:36:14,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:36:15,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:36:15,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:36:15,015 INFO L87 Difference]: Start difference. First operand has 158 states, 150 states have (on average 1.7066666666666668) internal successors, (256), 151 states have internal predecessors, (256), 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 7.6) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:36:16,241 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:36:18,809 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 [] [2022-03-20 07:36:20,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:36:20,104 INFO L93 Difference]: Finished difference Result 191 states and 312 transitions. [2022-03-20 07:36:20,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:36:20,106 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 42 [2022-03-20 07:36:20,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:36:20,113 INFO L225 Difference]: With dead ends: 191 [2022-03-20 07:36:20,113 INFO L226 Difference]: Without dead ends: 170 [2022-03-20 07:36:20,113 INFO L912 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 [2022-03-20 07:36:20,115 INFO L913 BasicCegarLoop]: 229 mSDtfsCounter, 34 mSDsluCounter, 378 mSDsCounter, 0 mSdLazyCounter, 414 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 607 SdHoareTripleChecker+Invalid, 426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 414 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-03-20 07:36:20,116 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 607 Invalid, 426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 414 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2022-03-20 07:36:20,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2022-03-20 07:36:20,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 153. [2022-03-20 07:36:20,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 148 states have (on average 1.554054054054054) internal successors, (230), 148 states have internal predecessors, (230), 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) [2022-03-20 07:36:20,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 234 transitions. [2022-03-20 07:36:20,154 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 234 transitions. Word has length 42 [2022-03-20 07:36:20,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:36:20,154 INFO L478 AbstractCegarLoop]: Abstraction has 153 states and 234 transitions. [2022-03-20 07:36:20,154 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:36:20,154 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 234 transitions. [2022-03-20 07:36:20,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-03-20 07:36:20,156 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:36:20,156 INFO L499 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] [2022-03-20 07:36:20,156 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-20 07:36:20,156 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:36:20,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:36:20,157 INFO L85 PathProgramCache]: Analyzing trace with hash 1972024210, now seen corresponding path program 1 times [2022-03-20 07:36:20,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:36:20,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65032868] [2022-03-20 07:36:20,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:36:20,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:36:20,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:36:20,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:36:20,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:36:20,307 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 07:36:20,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:36:20,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65032868] [2022-03-20 07:36:20,309 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65032868] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:36:20,309 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:36:20,309 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:36:20,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64798148] [2022-03-20 07:36:20,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:36:20,310 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:36:20,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:36:20,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:36:20,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:36:20,311 INFO L87 Difference]: Start difference. First operand 153 states and 234 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:36:22,915 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 [] [2022-03-20 07:36:23,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:36:23,502 INFO L93 Difference]: Finished difference Result 272 states and 418 transitions. [2022-03-20 07:36:23,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:36:23,502 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (3), 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 55 [2022-03-20 07:36:23,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:36:23,504 INFO L225 Difference]: With dead ends: 272 [2022-03-20 07:36:23,504 INFO L226 Difference]: Without dead ends: 272 [2022-03-20 07:36:23,504 INFO L912 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 [2022-03-20 07:36:23,505 INFO L913 BasicCegarLoop]: 263 mSDtfsCounter, 147 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 626 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 634 SdHoareTripleChecker+Invalid, 672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 626 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-03-20 07:36:23,505 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [147 Valid, 634 Invalid, 672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 626 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-03-20 07:36:23,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2022-03-20 07:36:23,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 169. [2022-03-20 07:36:23,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 164 states have (on average 1.5548780487804879) internal successors, (255), 164 states have internal predecessors, (255), 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) [2022-03-20 07:36:23,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 259 transitions. [2022-03-20 07:36:23,517 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 259 transitions. Word has length 55 [2022-03-20 07:36:23,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:36:23,517 INFO L478 AbstractCegarLoop]: Abstraction has 169 states and 259 transitions. [2022-03-20 07:36:23,517 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:36:23,517 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 259 transitions. [2022-03-20 07:36:23,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-03-20 07:36:23,518 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:36:23,518 INFO L499 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] [2022-03-20 07:36:23,519 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-20 07:36:23,519 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:36:23,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:36:23,519 INFO L85 PathProgramCache]: Analyzing trace with hash -1748095558, now seen corresponding path program 1 times [2022-03-20 07:36:23,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:36:23,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681203091] [2022-03-20 07:36:23,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:36:23,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:36:23,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:36:23,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:36:23,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:36:23,652 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 07:36:23,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:36:23,652 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681203091] [2022-03-20 07:36:23,653 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681203091] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:36:23,653 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:36:23,653 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:36:23,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088275207] [2022-03-20 07:36:23,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:36:23,653 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:36:23,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:36:23,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:36:23,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:36:23,654 INFO L87 Difference]: Start difference. First operand 169 states and 259 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:36:26,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:36:26,883 INFO L93 Difference]: Finished difference Result 185 states and 278 transitions. [2022-03-20 07:36:26,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:36:26,883 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 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 56 [2022-03-20 07:36:26,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:36:26,884 INFO L225 Difference]: With dead ends: 185 [2022-03-20 07:36:26,884 INFO L226 Difference]: Without dead ends: 185 [2022-03-20 07:36:26,885 INFO L912 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 [2022-03-20 07:36:26,885 INFO L913 BasicCegarLoop]: 188 mSDtfsCounter, 28 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 485 SdHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-03-20 07:36:26,886 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 485 Invalid, 371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-03-20 07:36:26,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2022-03-20 07:36:26,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 169. [2022-03-20 07:36:26,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 164 states have (on average 1.548780487804878) internal successors, (254), 164 states have internal predecessors, (254), 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) [2022-03-20 07:36:26,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 258 transitions. [2022-03-20 07:36:26,891 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 258 transitions. Word has length 56 [2022-03-20 07:36:26,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:36:26,891 INFO L478 AbstractCegarLoop]: Abstraction has 169 states and 258 transitions. [2022-03-20 07:36:26,892 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:36:26,892 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 258 transitions. [2022-03-20 07:36:26,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-03-20 07:36:26,893 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:36:26,893 INFO L499 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] [2022-03-20 07:36:26,893 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-20 07:36:26,893 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:36:26,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:36:26,894 INFO L85 PathProgramCache]: Analyzing trace with hash -1209199142, now seen corresponding path program 1 times [2022-03-20 07:36:26,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:36:26,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124106413] [2022-03-20 07:36:26,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:36:26,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:36:26,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:36:27,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:36:27,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:36:27,020 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 07:36:27,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:36:27,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124106413] [2022-03-20 07:36:27,024 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124106413] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:36:27,024 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:36:27,024 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:36:27,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97997402] [2022-03-20 07:36:27,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:36:27,024 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:36:27,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:36:27,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:36:27,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:36:27,026 INFO L87 Difference]: Start difference. First operand 169 states and 258 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:36:28,631 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:36:30,305 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:36:32,277 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:36:32,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:36:32,625 INFO L93 Difference]: Finished difference Result 185 states and 277 transitions. [2022-03-20 07:36:32,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:36:32,625 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 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 56 [2022-03-20 07:36:32,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:36:32,626 INFO L225 Difference]: With dead ends: 185 [2022-03-20 07:36:32,626 INFO L226 Difference]: Without dead ends: 185 [2022-03-20 07:36:32,627 INFO L912 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 [2022-03-20 07:36:32,627 INFO L913 BasicCegarLoop]: 188 mSDtfsCounter, 26 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 485 SdHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-03-20 07:36:32,627 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 485 Invalid, 371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2022-03-20 07:36:32,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2022-03-20 07:36:32,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 169. [2022-03-20 07:36:32,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 164 states have (on average 1.5426829268292683) internal successors, (253), 164 states have internal predecessors, (253), 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) [2022-03-20 07:36:32,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 257 transitions. [2022-03-20 07:36:32,632 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 257 transitions. Word has length 56 [2022-03-20 07:36:32,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:36:32,633 INFO L478 AbstractCegarLoop]: Abstraction has 169 states and 257 transitions. [2022-03-20 07:36:32,633 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:36:32,633 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 257 transitions. [2022-03-20 07:36:32,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-03-20 07:36:32,634 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:36:32,634 INFO L499 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] [2022-03-20 07:36:32,634 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-20 07:36:32,634 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:36:32,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:36:32,634 INFO L85 PathProgramCache]: Analyzing trace with hash -1966452198, now seen corresponding path program 1 times [2022-03-20 07:36:32,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:36:32,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369346027] [2022-03-20 07:36:32,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:36:32,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:36:32,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:36:32,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:36:32,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:36:32,747 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 07:36:32,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:36:32,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369346027] [2022-03-20 07:36:32,747 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369346027] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:36:32,747 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:36:32,747 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:36:32,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867306511] [2022-03-20 07:36:32,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:36:32,748 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:36:32,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:36:32,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:36:32,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:36:32,748 INFO L87 Difference]: Start difference. First operand 169 states and 257 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:36:33,765 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 [] [2022-03-20 07:36:34,840 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 [] [2022-03-20 07:36:36,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:36:36,580 INFO L93 Difference]: Finished difference Result 183 states and 274 transitions. [2022-03-20 07:36:36,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:36:36,581 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 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 56 [2022-03-20 07:36:36,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:36:36,582 INFO L225 Difference]: With dead ends: 183 [2022-03-20 07:36:36,582 INFO L226 Difference]: Without dead ends: 183 [2022-03-20 07:36:36,582 INFO L912 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 [2022-03-20 07:36:36,582 INFO L913 BasicCegarLoop]: 190 mSDtfsCounter, 20 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-03-20 07:36:36,583 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 489 Invalid, 366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 358 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-03-20 07:36:36,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2022-03-20 07:36:36,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 169. [2022-03-20 07:36:36,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 164 states have (on average 1.5365853658536586) internal successors, (252), 164 states have internal predecessors, (252), 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) [2022-03-20 07:36:36,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 256 transitions. [2022-03-20 07:36:36,587 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 256 transitions. Word has length 56 [2022-03-20 07:36:36,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:36:36,587 INFO L478 AbstractCegarLoop]: Abstraction has 169 states and 256 transitions. [2022-03-20 07:36:36,587 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:36:36,587 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 256 transitions. [2022-03-20 07:36:36,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-03-20 07:36:36,590 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:36:36,590 INFO L499 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] [2022-03-20 07:36:36,590 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-20 07:36:36,590 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:36:36,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:36:36,590 INFO L85 PathProgramCache]: Analyzing trace with hash 1979822394, now seen corresponding path program 1 times [2022-03-20 07:36:36,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:36:36,591 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189034113] [2022-03-20 07:36:36,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:36:36,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:36:36,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:36:36,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:36:36,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:36:36,719 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 07:36:36,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:36:36,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189034113] [2022-03-20 07:36:36,719 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189034113] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:36:36,719 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:36:36,719 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:36:36,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328333040] [2022-03-20 07:36:36,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:36:36,720 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:36:36,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:36:36,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:36:36,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:36:36,722 INFO L87 Difference]: Start difference. First operand 169 states and 256 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:36:37,958 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:36:39,182 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:36:39,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:36:39,993 INFO L93 Difference]: Finished difference Result 287 states and 439 transitions. [2022-03-20 07:36:39,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:36:39,993 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 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 56 [2022-03-20 07:36:39,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:36:39,995 INFO L225 Difference]: With dead ends: 287 [2022-03-20 07:36:39,995 INFO L226 Difference]: Without dead ends: 287 [2022-03-20 07:36:39,995 INFO L912 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 [2022-03-20 07:36:39,996 INFO L913 BasicCegarLoop]: 118 mSDtfsCounter, 145 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-03-20 07:36:39,996 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 344 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 475 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-03-20 07:36:39,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2022-03-20 07:36:40,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 187. [2022-03-20 07:36:40,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 182 states have (on average 1.543956043956044) internal successors, (281), 182 states have internal predecessors, (281), 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) [2022-03-20 07:36:40,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 285 transitions. [2022-03-20 07:36:40,002 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 285 transitions. Word has length 56 [2022-03-20 07:36:40,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:36:40,003 INFO L478 AbstractCegarLoop]: Abstraction has 187 states and 285 transitions. [2022-03-20 07:36:40,003 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:36:40,003 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 285 transitions. [2022-03-20 07:36:40,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-03-20 07:36:40,004 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:36:40,004 INFO L499 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] [2022-03-20 07:36:40,004 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-20 07:36:40,004 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:36:40,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:36:40,005 INFO L85 PathProgramCache]: Analyzing trace with hash -1222198510, now seen corresponding path program 1 times [2022-03-20 07:36:40,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:36:40,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790830165] [2022-03-20 07:36:40,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:36:40,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:36:40,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:36:40,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:36:40,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:36:40,164 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 07:36:40,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:36:40,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790830165] [2022-03-20 07:36:40,164 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790830165] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:36:40,164 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:36:40,164 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:36:40,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815242639] [2022-03-20 07:36:40,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:36:40,165 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:36:40,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:36:40,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:36:40,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:36:40,165 INFO L87 Difference]: Start difference. First operand 187 states and 285 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:36:42,614 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 [] [2022-03-20 07:36:44,639 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:36:46,660 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:36:47,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:36:47,159 INFO L93 Difference]: Finished difference Result 287 states and 436 transitions. [2022-03-20 07:36:47,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:36:47,160 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 57 [2022-03-20 07:36:47,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:36:47,161 INFO L225 Difference]: With dead ends: 287 [2022-03-20 07:36:47,161 INFO L226 Difference]: Without dead ends: 287 [2022-03-20 07:36:47,161 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:36:47,162 INFO L913 BasicCegarLoop]: 118 mSDtfsCounter, 149 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 63 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-03-20 07:36:47,162 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 344 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 472 Invalid, 3 Unknown, 0 Unchecked, 7.0s Time] [2022-03-20 07:36:47,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2022-03-20 07:36:47,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 187. [2022-03-20 07:36:47,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 182 states have (on average 1.5274725274725274) internal successors, (278), 182 states have internal predecessors, (278), 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) [2022-03-20 07:36:47,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 282 transitions. [2022-03-20 07:36:47,167 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 282 transitions. Word has length 57 [2022-03-20 07:36:47,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:36:47,167 INFO L478 AbstractCegarLoop]: Abstraction has 187 states and 282 transitions. [2022-03-20 07:36:47,167 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:36:47,167 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 282 transitions. [2022-03-20 07:36:47,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-03-20 07:36:47,167 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:36:47,168 INFO L499 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] [2022-03-20 07:36:47,168 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-20 07:36:47,168 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:36:47,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:36:47,168 INFO L85 PathProgramCache]: Analyzing trace with hash -1020945954, now seen corresponding path program 1 times [2022-03-20 07:36:47,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:36:47,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274858001] [2022-03-20 07:36:47,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:36:47,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:36:47,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:36:47,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:36:47,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:36:47,307 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 07:36:47,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:36:47,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274858001] [2022-03-20 07:36:47,308 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274858001] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:36:47,308 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:36:47,308 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:36:47,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485965865] [2022-03-20 07:36:47,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:36:47,308 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:36:47,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:36:47,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:36:47,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:36:47,309 INFO L87 Difference]: Start difference. First operand 187 states and 282 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:36:48,510 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:36:50,121 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:36:51,373 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:36:52,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:36:52,267 INFO L93 Difference]: Finished difference Result 200 states and 298 transitions. [2022-03-20 07:36:52,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:36:52,268 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 58 [2022-03-20 07:36:52,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:36:52,269 INFO L225 Difference]: With dead ends: 200 [2022-03-20 07:36:52,269 INFO L226 Difference]: Without dead ends: 200 [2022-03-20 07:36:52,269 INFO L912 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 [2022-03-20 07:36:52,269 INFO L913 BasicCegarLoop]: 191 mSDtfsCounter, 20 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 491 SdHoareTripleChecker+Invalid, 364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-03-20 07:36:52,269 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 491 Invalid, 364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-03-20 07:36:52,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2022-03-20 07:36:52,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 187. [2022-03-20 07:36:52,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 182 states have (on average 1.521978021978022) internal successors, (277), 182 states have internal predecessors, (277), 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) [2022-03-20 07:36:52,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 281 transitions. [2022-03-20 07:36:52,273 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 281 transitions. Word has length 58 [2022-03-20 07:36:52,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:36:52,273 INFO L478 AbstractCegarLoop]: Abstraction has 187 states and 281 transitions. [2022-03-20 07:36:52,273 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:36:52,273 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 281 transitions. [2022-03-20 07:36:52,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-03-20 07:36:52,274 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:36:52,274 INFO L499 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] [2022-03-20 07:36:52,274 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-20 07:36:52,274 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:36:52,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:36:52,274 INFO L85 PathProgramCache]: Analyzing trace with hash -1845134763, now seen corresponding path program 1 times [2022-03-20 07:36:52,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:36:52,275 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955943189] [2022-03-20 07:36:52,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:36:52,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:36:52,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:36:52,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:36:52,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:36:52,375 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 07:36:52,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:36:52,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955943189] [2022-03-20 07:36:52,376 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955943189] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:36:52,376 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:36:52,376 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:36:52,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985286863] [2022-03-20 07:36:52,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:36:52,377 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:36:52,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:36:52,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:36:52,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:36:52,377 INFO L87 Difference]: Start difference. First operand 187 states and 281 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:36:54,736 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:36:56,759 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 [] [2022-03-20 07:36:57,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:36:57,513 INFO L93 Difference]: Finished difference Result 190 states and 284 transitions. [2022-03-20 07:36:57,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:36:57,514 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 59 [2022-03-20 07:36:57,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:36:57,514 INFO L225 Difference]: With dead ends: 190 [2022-03-20 07:36:57,514 INFO L226 Difference]: Without dead ends: 190 [2022-03-20 07:36:57,515 INFO L912 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 [2022-03-20 07:36:57,515 INFO L913 BasicCegarLoop]: 198 mSDtfsCounter, 11 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-03-20 07:36:57,515 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 505 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 341 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2022-03-20 07:36:57,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2022-03-20 07:36:57,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 187. [2022-03-20 07:36:57,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 182 states have (on average 1.5164835164835164) internal successors, (276), 182 states have internal predecessors, (276), 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) [2022-03-20 07:36:57,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 280 transitions. [2022-03-20 07:36:57,519 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 280 transitions. Word has length 59 [2022-03-20 07:36:57,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:36:57,519 INFO L478 AbstractCegarLoop]: Abstraction has 187 states and 280 transitions. [2022-03-20 07:36:57,519 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:36:57,519 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 280 transitions. [2022-03-20 07:36:57,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-03-20 07:36:57,520 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:36:57,520 INFO L499 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] [2022-03-20 07:36:57,520 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-20 07:36:57,520 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:36:57,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:36:57,520 INFO L85 PathProgramCache]: Analyzing trace with hash -1478412284, now seen corresponding path program 1 times [2022-03-20 07:36:57,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:36:57,521 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736674238] [2022-03-20 07:36:57,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:36:57,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:36:57,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:36:57,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:36:57,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:36:57,613 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 07:36:57,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:36:57,613 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736674238] [2022-03-20 07:36:57,614 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736674238] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:36:57,614 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:36:57,616 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:36:57,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937437773] [2022-03-20 07:36:57,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:36:57,619 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:36:57,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:36:57,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:36:57,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:36:57,620 INFO L87 Difference]: Start difference. First operand 187 states and 280 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:36:59,438 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:37:01,463 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:37:03,485 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:37:05,017 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 [] [2022-03-20 07:37:05,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:37:05,483 INFO L93 Difference]: Finished difference Result 305 states and 461 transitions. [2022-03-20 07:37:05,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:37:05,484 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 59 [2022-03-20 07:37:05,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:37:05,485 INFO L225 Difference]: With dead ends: 305 [2022-03-20 07:37:05,485 INFO L226 Difference]: Without dead ends: 305 [2022-03-20 07:37:05,485 INFO L912 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 [2022-03-20 07:37:05,485 INFO L913 BasicCegarLoop]: 118 mSDtfsCounter, 134 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 61 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2022-03-20 07:37:05,486 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 344 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 474 Invalid, 2 Unknown, 0 Unchecked, 7.8s Time] [2022-03-20 07:37:05,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2022-03-20 07:37:05,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 215. [2022-03-20 07:37:05,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 210 states have (on average 1.5380952380952382) internal successors, (323), 210 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) [2022-03-20 07:37:05,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 327 transitions. [2022-03-20 07:37:05,490 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 327 transitions. Word has length 59 [2022-03-20 07:37:05,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:37:05,490 INFO L478 AbstractCegarLoop]: Abstraction has 215 states and 327 transitions. [2022-03-20 07:37:05,490 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:37:05,490 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 327 transitions. [2022-03-20 07:37:05,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-03-20 07:37:05,491 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:37:05,491 INFO L499 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] [2022-03-20 07:37:05,491 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-20 07:37:05,491 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:37:05,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:37:05,491 INFO L85 PathProgramCache]: Analyzing trace with hash 478953171, now seen corresponding path program 1 times [2022-03-20 07:37:05,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:37:05,492 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049027834] [2022-03-20 07:37:05,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:37:05,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:37:05,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:37:05,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:37:05,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:37:05,597 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 07:37:05,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:37:05,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049027834] [2022-03-20 07:37:05,597 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049027834] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:37:05,598 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:37:05,598 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:37:05,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066247365] [2022-03-20 07:37:05,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:37:05,598 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:37:05,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:37:05,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:37:05,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:37:05,599 INFO L87 Difference]: Start difference. First operand 215 states and 327 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:37:08,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:37:08,185 INFO L93 Difference]: Finished difference Result 257 states and 388 transitions. [2022-03-20 07:37:08,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:37:08,186 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 60 [2022-03-20 07:37:08,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:37:08,192 INFO L225 Difference]: With dead ends: 257 [2022-03-20 07:37:08,192 INFO L226 Difference]: Without dead ends: 257 [2022-03-20 07:37:08,192 INFO L912 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 [2022-03-20 07:37:08,193 INFO L913 BasicCegarLoop]: 195 mSDtfsCounter, 31 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 396 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-03-20 07:37:08,194 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 505 Invalid, 407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 396 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-03-20 07:37:08,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2022-03-20 07:37:08,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 237. [2022-03-20 07:37:08,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 232 states have (on average 1.543103448275862) internal successors, (358), 232 states have internal predecessors, (358), 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) [2022-03-20 07:37:08,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 362 transitions. [2022-03-20 07:37:08,201 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 362 transitions. Word has length 60 [2022-03-20 07:37:08,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:37:08,201 INFO L478 AbstractCegarLoop]: Abstraction has 237 states and 362 transitions. [2022-03-20 07:37:08,201 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:37:08,201 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 362 transitions. [2022-03-20 07:37:08,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-03-20 07:37:08,202 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:37:08,202 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:37:08,202 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-20 07:37:08,202 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:37:08,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:37:08,203 INFO L85 PathProgramCache]: Analyzing trace with hash -1095309927, now seen corresponding path program 1 times [2022-03-20 07:37:08,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:37:08,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085056570] [2022-03-20 07:37:08,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:37:08,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:37:08,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:37:08,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:37:08,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:37:08,314 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-20 07:37:08,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:37:08,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085056570] [2022-03-20 07:37:08,315 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085056570] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:37:08,315 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:37:08,315 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:37:08,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003990756] [2022-03-20 07:37:08,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:37:08,315 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:37:08,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:37:08,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:37:08,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:37:08,316 INFO L87 Difference]: Start difference. First operand 237 states and 362 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:37:09,634 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:37:11,624 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:37:12,632 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:37:12,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:37:12,986 INFO L93 Difference]: Finished difference Result 250 states and 377 transitions. [2022-03-20 07:37:12,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:37:12,986 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 74 [2022-03-20 07:37:12,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:37:12,987 INFO L225 Difference]: With dead ends: 250 [2022-03-20 07:37:12,987 INFO L226 Difference]: Without dead ends: 250 [2022-03-20 07:37:12,988 INFO L912 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 [2022-03-20 07:37:12,988 INFO L913 BasicCegarLoop]: 231 mSDtfsCounter, 21 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-03-20 07:37:12,988 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 576 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-03-20 07:37:12,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2022-03-20 07:37:12,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 237. [2022-03-20 07:37:12,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 232 states have (on average 1.5387931034482758) internal successors, (357), 232 states have internal predecessors, (357), 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) [2022-03-20 07:37:12,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 361 transitions. [2022-03-20 07:37:12,993 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 361 transitions. Word has length 74 [2022-03-20 07:37:12,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:37:12,994 INFO L478 AbstractCegarLoop]: Abstraction has 237 states and 361 transitions. [2022-03-20 07:37:12,994 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:37:12,994 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 361 transitions. [2022-03-20 07:37:12,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-03-20 07:37:12,994 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:37:12,995 INFO L499 BasicCegarLoop]: trace histogram [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] [2022-03-20 07:37:12,995 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-20 07:37:12,995 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:37:12,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:37:12,995 INFO L85 PathProgramCache]: Analyzing trace with hash 725568825, now seen corresponding path program 1 times [2022-03-20 07:37:12,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:37:12,995 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127362192] [2022-03-20 07:37:12,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:37:12,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:37:13,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:37:13,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:37:13,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:37:13,096 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 07:37:13,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:37:13,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127362192] [2022-03-20 07:37:13,096 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127362192] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:37:13,096 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:37:13,096 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:37:13,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005193841] [2022-03-20 07:37:13,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:37:13,097 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:37:13,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:37:13,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:37:13,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:37:13,097 INFO L87 Difference]: Start difference. First operand 237 states and 361 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:37:14,326 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:37:16,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:37:16,779 INFO L93 Difference]: Finished difference Result 255 states and 384 transitions. [2022-03-20 07:37:16,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:37:16,779 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 74 [2022-03-20 07:37:16,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:37:16,780 INFO L225 Difference]: With dead ends: 255 [2022-03-20 07:37:16,780 INFO L226 Difference]: Without dead ends: 255 [2022-03-20 07:37:16,780 INFO L912 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 [2022-03-20 07:37:16,781 INFO L913 BasicCegarLoop]: 198 mSDtfsCounter, 35 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-03-20 07:37:16,781 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 509 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 391 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-03-20 07:37:16,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2022-03-20 07:37:16,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 237. [2022-03-20 07:37:16,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 232 states have (on average 1.5344827586206897) internal successors, (356), 232 states have internal predecessors, (356), 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) [2022-03-20 07:37:16,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 360 transitions. [2022-03-20 07:37:16,785 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 360 transitions. Word has length 74 [2022-03-20 07:37:16,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:37:16,785 INFO L478 AbstractCegarLoop]: Abstraction has 237 states and 360 transitions. [2022-03-20 07:37:16,785 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:37:16,785 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 360 transitions. [2022-03-20 07:37:16,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-03-20 07:37:16,786 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:37:16,786 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:37:16,786 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-20 07:37:16,786 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:37:16,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:37:16,786 INFO L85 PathProgramCache]: Analyzing trace with hash -409272786, now seen corresponding path program 1 times [2022-03-20 07:37:16,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:37:16,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457385688] [2022-03-20 07:37:16,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:37:16,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:37:16,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:37:16,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:37:16,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:37:16,910 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-20 07:37:16,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:37:16,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457385688] [2022-03-20 07:37:16,911 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457385688] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:37:16,911 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:37:16,911 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 07:37:16,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143127593] [2022-03-20 07:37:16,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:37:16,911 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-20 07:37:16,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:37:16,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-20 07:37:16,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:37:16,912 INFO L87 Difference]: Start difference. First operand 237 states and 360 transitions. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 5 states have internal predecessors, (70), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:37:19,558 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 [] [2022-03-20 07:37:21,949 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:37:22,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:37:22,886 INFO L93 Difference]: Finished difference Result 246 states and 371 transitions. [2022-03-20 07:37:22,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-20 07:37:22,887 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 5 states have internal predecessors, (70), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 75 [2022-03-20 07:37:22,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:37:22,888 INFO L225 Difference]: With dead ends: 246 [2022-03-20 07:37:22,888 INFO L226 Difference]: Without dead ends: 246 [2022-03-20 07:37:22,888 INFO L912 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 [2022-03-20 07:37:22,888 INFO L913 BasicCegarLoop]: 203 mSDtfsCounter, 3 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 435 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 633 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 435 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-03-20 07:37:22,888 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 633 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 435 Invalid, 1 Unknown, 0 Unchecked, 6.0s Time] [2022-03-20 07:37:22,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2022-03-20 07:37:22,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 246. [2022-03-20 07:37:22,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 241 states have (on average 1.5228215767634854) internal successors, (367), 241 states have internal predecessors, (367), 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) [2022-03-20 07:37:22,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 371 transitions. [2022-03-20 07:37:22,892 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 371 transitions. Word has length 75 [2022-03-20 07:37:22,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:37:22,892 INFO L478 AbstractCegarLoop]: Abstraction has 246 states and 371 transitions. [2022-03-20 07:37:22,892 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 5 states have internal predecessors, (70), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:37:22,893 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 371 transitions. [2022-03-20 07:37:22,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-03-20 07:37:22,893 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:37:22,893 INFO L499 BasicCegarLoop]: trace histogram [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] [2022-03-20 07:37:22,893 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-20 07:37:22,893 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:37:22,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:37:22,894 INFO L85 PathProgramCache]: Analyzing trace with hash 2074107470, now seen corresponding path program 1 times [2022-03-20 07:37:22,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:37:22,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96275902] [2022-03-20 07:37:22,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:37:22,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:37:22,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:37:22,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:37:22,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:37:22,981 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 07:37:22,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:37:22,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96275902] [2022-03-20 07:37:22,981 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96275902] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:37:22,981 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:37:22,981 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:37:22,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233760071] [2022-03-20 07:37:22,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:37:22,982 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:37:22,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:37:22,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:37:22,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:37:22,982 INFO L87 Difference]: Start difference. First operand 246 states and 371 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:37:24,004 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 [] [2022-03-20 07:37:26,018 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 [] [2022-03-20 07:37:27,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:37:27,624 INFO L93 Difference]: Finished difference Result 273 states and 405 transitions. [2022-03-20 07:37:27,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:37:27,625 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 75 [2022-03-20 07:37:27,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:37:27,626 INFO L225 Difference]: With dead ends: 273 [2022-03-20 07:37:27,626 INFO L226 Difference]: Without dead ends: 273 [2022-03-20 07:37:27,626 INFO L912 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 [2022-03-20 07:37:27,626 INFO L913 BasicCegarLoop]: 198 mSDtfsCounter, 39 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-03-20 07:37:27,626 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 509 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 390 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2022-03-20 07:37:27,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2022-03-20 07:37:27,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 246. [2022-03-20 07:37:27,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 241 states have (on average 1.5186721991701244) internal successors, (366), 241 states have internal predecessors, (366), 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) [2022-03-20 07:37:27,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 370 transitions. [2022-03-20 07:37:27,631 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 370 transitions. Word has length 75 [2022-03-20 07:37:27,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:37:27,631 INFO L478 AbstractCegarLoop]: Abstraction has 246 states and 370 transitions. [2022-03-20 07:37:27,632 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:37:27,632 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 370 transitions. [2022-03-20 07:37:27,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-03-20 07:37:27,632 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:37:27,632 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:37:27,632 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-20 07:37:27,632 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:37:27,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:37:27,633 INFO L85 PathProgramCache]: Analyzing trace with hash -2128965550, now seen corresponding path program 1 times [2022-03-20 07:37:27,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:37:27,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308053497] [2022-03-20 07:37:27,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:37:27,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:37:27,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:37:27,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:37:27,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:37:27,716 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 07:37:27,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:37:27,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308053497] [2022-03-20 07:37:27,716 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308053497] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:37:27,716 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:37:27,716 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:37:27,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570241341] [2022-03-20 07:37:27,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:37:27,717 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:37:27,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:37:27,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:37:27,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:37:27,717 INFO L87 Difference]: Start difference. First operand 246 states and 370 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:37:29,739 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 [] [2022-03-20 07:37:30,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:37:30,195 INFO L93 Difference]: Finished difference Result 355 states and 531 transitions. [2022-03-20 07:37:30,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:37:30,195 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 77 [2022-03-20 07:37:30,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:37:30,196 INFO L225 Difference]: With dead ends: 355 [2022-03-20 07:37:30,196 INFO L226 Difference]: Without dead ends: 355 [2022-03-20 07:37:30,197 INFO L912 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 [2022-03-20 07:37:30,197 INFO L913 BasicCegarLoop]: 118 mSDtfsCounter, 148 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 07:37:30,197 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 344 Invalid, 535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 471 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 07:37:30,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2022-03-20 07:37:30,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 246. [2022-03-20 07:37:30,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 241 states have (on average 1.5020746887966805) internal successors, (362), 241 states have internal predecessors, (362), 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) [2022-03-20 07:37:30,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 366 transitions. [2022-03-20 07:37:30,201 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 366 transitions. Word has length 77 [2022-03-20 07:37:30,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:37:30,201 INFO L478 AbstractCegarLoop]: Abstraction has 246 states and 366 transitions. [2022-03-20 07:37:30,202 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:37:30,202 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 366 transitions. [2022-03-20 07:37:30,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-03-20 07:37:30,202 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:37:30,202 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:37:30,202 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-20 07:37:30,202 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:37:30,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:37:30,203 INFO L85 PathProgramCache]: Analyzing trace with hash 1952802305, now seen corresponding path program 1 times [2022-03-20 07:37:30,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:37:30,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736051023] [2022-03-20 07:37:30,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:37:30,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:37:30,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:37:30,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:37:30,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:37:30,304 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 07:37:30,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:37:30,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736051023] [2022-03-20 07:37:30,305 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736051023] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:37:30,305 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:37:30,305 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:37:30,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886779201] [2022-03-20 07:37:30,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:37:30,306 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:37:30,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:37:30,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:37:30,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:37:30,306 INFO L87 Difference]: Start difference. First operand 246 states and 366 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:37:32,886 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:37:34,905 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:37:35,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:37:35,375 INFO L93 Difference]: Finished difference Result 355 states and 527 transitions. [2022-03-20 07:37:35,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:37:35,376 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 78 [2022-03-20 07:37:35,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:37:35,377 INFO L225 Difference]: With dead ends: 355 [2022-03-20 07:37:35,377 INFO L226 Difference]: Without dead ends: 355 [2022-03-20 07:37:35,377 INFO L912 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 [2022-03-20 07:37:35,377 INFO L913 BasicCegarLoop]: 118 mSDtfsCounter, 146 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-03-20 07:37:35,377 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 344 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 474 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2022-03-20 07:37:35,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2022-03-20 07:37:35,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 246. [2022-03-20 07:37:35,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 241 states have (on average 1.4854771784232366) internal successors, (358), 241 states have internal predecessors, (358), 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) [2022-03-20 07:37:35,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 362 transitions. [2022-03-20 07:37:35,397 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 362 transitions. Word has length 78 [2022-03-20 07:37:35,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:37:35,397 INFO L478 AbstractCegarLoop]: Abstraction has 246 states and 362 transitions. [2022-03-20 07:37:35,397 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:37:35,397 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 362 transitions. [2022-03-20 07:37:35,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-03-20 07:37:35,398 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:37:35,398 INFO L499 BasicCegarLoop]: trace histogram [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] [2022-03-20 07:37:35,398 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-20 07:37:35,398 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:37:35,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:37:35,399 INFO L85 PathProgramCache]: Analyzing trace with hash -2041710414, now seen corresponding path program 1 times [2022-03-20 07:37:35,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:37:35,399 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290510305] [2022-03-20 07:37:35,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:37:35,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:37:35,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:37:35,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:37:35,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:37:35,510 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 07:37:35,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:37:35,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290510305] [2022-03-20 07:37:35,511 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290510305] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:37:35,511 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:37:35,511 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:37:35,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814988630] [2022-03-20 07:37:35,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:37:35,511 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:37:35,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:37:35,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:37:35,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:37:35,512 INFO L87 Difference]: Start difference. First operand 246 states and 362 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:37:37,148 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:37:39,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:37:39,193 INFO L93 Difference]: Finished difference Result 353 states and 517 transitions. [2022-03-20 07:37:39,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:37:39,194 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 82 [2022-03-20 07:37:39,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:37:39,195 INFO L225 Difference]: With dead ends: 353 [2022-03-20 07:37:39,195 INFO L226 Difference]: Without dead ends: 353 [2022-03-20 07:37:39,195 INFO L912 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 [2022-03-20 07:37:39,196 INFO L913 BasicCegarLoop]: 199 mSDtfsCounter, 90 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 527 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-03-20 07:37:39,196 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [90 Valid, 513 Invalid, 543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 527 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-03-20 07:37:39,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2022-03-20 07:37:39,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 277. [2022-03-20 07:37:39,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 272 states have (on average 1.4926470588235294) internal successors, (406), 272 states have internal predecessors, (406), 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) [2022-03-20 07:37:39,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 410 transitions. [2022-03-20 07:37:39,200 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 410 transitions. Word has length 82 [2022-03-20 07:37:39,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:37:39,200 INFO L478 AbstractCegarLoop]: Abstraction has 277 states and 410 transitions. [2022-03-20 07:37:39,200 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:37:39,200 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 410 transitions. [2022-03-20 07:37:39,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-03-20 07:37:39,200 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:37:39,201 INFO L499 BasicCegarLoop]: trace histogram [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] [2022-03-20 07:37:39,201 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-20 07:37:39,201 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:37:39,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:37:39,201 INFO L85 PathProgramCache]: Analyzing trace with hash -1016218415, now seen corresponding path program 1 times [2022-03-20 07:37:39,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:37:39,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039182647] [2022-03-20 07:37:39,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:37:39,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:37:39,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:37:39,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:37:39,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:37:39,332 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 07:37:39,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:37:39,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039182647] [2022-03-20 07:37:39,332 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039182647] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:37:39,332 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:37:39,332 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:37:39,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775042556] [2022-03-20 07:37:39,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:37:39,333 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:37:39,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:37:39,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:37:39,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:37:39,333 INFO L87 Difference]: Start difference. First operand 277 states and 410 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:37:43,699 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 [] [2022-03-20 07:37:44,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:37:44,104 INFO L93 Difference]: Finished difference Result 335 states and 491 transitions. [2022-03-20 07:37:44,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:37:44,105 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 82 [2022-03-20 07:37:44,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:37:44,106 INFO L225 Difference]: With dead ends: 335 [2022-03-20 07:37:44,106 INFO L226 Difference]: Without dead ends: 335 [2022-03-20 07:37:44,106 INFO L912 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 [2022-03-20 07:37:44,106 INFO L913 BasicCegarLoop]: 246 mSDtfsCounter, 37 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 605 SdHoareTripleChecker+Invalid, 480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-03-20 07:37:44,107 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 605 Invalid, 480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 468 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2022-03-20 07:37:44,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2022-03-20 07:37:44,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 301. [2022-03-20 07:37:44,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 296 states have (on average 1.4966216216216217) internal successors, (443), 296 states have internal predecessors, (443), 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) [2022-03-20 07:37:44,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 447 transitions. [2022-03-20 07:37:44,111 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 447 transitions. Word has length 82 [2022-03-20 07:37:44,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:37:44,111 INFO L478 AbstractCegarLoop]: Abstraction has 301 states and 447 transitions. [2022-03-20 07:37:44,111 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:37:44,111 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 447 transitions. [2022-03-20 07:37:44,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-03-20 07:37:44,111 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:37:44,112 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:37:44,112 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-20 07:37:44,112 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:37:44,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:37:44,112 INFO L85 PathProgramCache]: Analyzing trace with hash -358305085, now seen corresponding path program 1 times [2022-03-20 07:37:44,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:37:44,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951552026] [2022-03-20 07:37:44,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:37:44,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:37:44,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:37:44,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:37:44,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:37:44,197 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 07:37:44,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:37:44,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951552026] [2022-03-20 07:37:44,197 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951552026] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:37:44,197 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:37:44,197 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:37:44,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137418383] [2022-03-20 07:37:44,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:37:44,197 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:37:44,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:37:44,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:37:44,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:37:44,198 INFO L87 Difference]: Start difference. First operand 301 states and 447 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:37:45,301 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:37:46,485 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:37:47,833 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:37:49,849 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:37:50,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:37:50,272 INFO L93 Difference]: Finished difference Result 400 states and 594 transitions. [2022-03-20 07:37:50,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:37:50,272 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (3), 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 87 [2022-03-20 07:37:50,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:37:50,273 INFO L225 Difference]: With dead ends: 400 [2022-03-20 07:37:50,273 INFO L226 Difference]: Without dead ends: 400 [2022-03-20 07:37:50,273 INFO L912 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 [2022-03-20 07:37:50,274 INFO L913 BasicCegarLoop]: 119 mSDtfsCounter, 149 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 62 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-03-20 07:37:50,274 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 346 Invalid, 535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 472 Invalid, 1 Unknown, 0 Unchecked, 6.1s Time] [2022-03-20 07:37:50,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2022-03-20 07:37:50,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 301. [2022-03-20 07:37:50,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 296 states have (on average 1.4763513513513513) internal successors, (437), 296 states have internal predecessors, (437), 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) [2022-03-20 07:37:50,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 441 transitions. [2022-03-20 07:37:50,278 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 441 transitions. Word has length 87 [2022-03-20 07:37:50,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:37:50,278 INFO L478 AbstractCegarLoop]: Abstraction has 301 states and 441 transitions. [2022-03-20 07:37:50,278 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:37:50,278 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 441 transitions. [2022-03-20 07:37:50,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-03-20 07:37:50,279 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:37:50,279 INFO L499 BasicCegarLoop]: trace histogram [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, 1, 1] [2022-03-20 07:37:50,279 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-20 07:37:50,279 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:37:50,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:37:50,280 INFO L85 PathProgramCache]: Analyzing trace with hash -627016711, now seen corresponding path program 1 times [2022-03-20 07:37:50,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:37:50,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321056093] [2022-03-20 07:37:50,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:37:50,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:37:50,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:37:50,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:37:50,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:37:50,377 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 07:37:50,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:37:50,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321056093] [2022-03-20 07:37:50,377 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321056093] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:37:50,377 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:37:50,377 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:37:50,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636433989] [2022-03-20 07:37:50,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:37:50,378 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:37:50,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:37:50,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:37:50,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:37:50,379 INFO L87 Difference]: Start difference. First operand 301 states and 441 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:37:51,794 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:37:53,812 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:37:55,836 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:37:57,856 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:37:58,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:37:58,270 INFO L93 Difference]: Finished difference Result 429 states and 638 transitions. [2022-03-20 07:37:58,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:37:58,271 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (3), 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 87 [2022-03-20 07:37:58,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:37:58,284 INFO L225 Difference]: With dead ends: 429 [2022-03-20 07:37:58,284 INFO L226 Difference]: Without dead ends: 429 [2022-03-20 07:37:58,285 INFO L912 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 [2022-03-20 07:37:58,288 INFO L913 BasicCegarLoop]: 119 mSDtfsCounter, 120 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 58 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2022-03-20 07:37:58,289 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 346 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 473 Invalid, 3 Unknown, 0 Unchecked, 7.9s Time] [2022-03-20 07:37:58,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2022-03-20 07:37:58,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 351. [2022-03-20 07:37:58,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 346 states have (on average 1.5115606936416186) internal successors, (523), 346 states have internal predecessors, (523), 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) [2022-03-20 07:37:58,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 527 transitions. [2022-03-20 07:37:58,296 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 527 transitions. Word has length 87 [2022-03-20 07:37:58,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:37:58,296 INFO L478 AbstractCegarLoop]: Abstraction has 351 states and 527 transitions. [2022-03-20 07:37:58,296 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:37:58,296 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 527 transitions. [2022-03-20 07:37:58,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-03-20 07:37:58,297 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:37:58,297 INFO L499 BasicCegarLoop]: trace histogram [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, 1, 1, 1] [2022-03-20 07:37:58,297 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-03-20 07:37:58,297 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:37:58,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:37:58,297 INFO L85 PathProgramCache]: Analyzing trace with hash 2038270526, now seen corresponding path program 1 times [2022-03-20 07:37:58,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:37:58,298 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335658663] [2022-03-20 07:37:58,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:37:58,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:37:58,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:37:58,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:37:58,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:37:58,381 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 07:37:58,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:37:58,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335658663] [2022-03-20 07:37:58,382 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1335658663] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:37:58,382 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:37:58,382 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:37:58,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136720649] [2022-03-20 07:37:58,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:37:58,382 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:37:58,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:37:58,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:37:58,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:37:58,383 INFO L87 Difference]: Start difference. First operand 351 states and 527 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:38:01,488 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 [] [2022-03-20 07:38:01,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:38:01,913 INFO L93 Difference]: Finished difference Result 411 states and 613 transitions. [2022-03-20 07:38:01,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:38:01,915 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 88 [2022-03-20 07:38:01,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:38:01,916 INFO L225 Difference]: With dead ends: 411 [2022-03-20 07:38:01,916 INFO L226 Difference]: Without dead ends: 411 [2022-03-20 07:38:01,916 INFO L912 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 [2022-03-20 07:38:01,917 INFO L913 BasicCegarLoop]: 184 mSDtfsCounter, 71 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 14 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-03-20 07:38:01,917 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [71 Valid, 483 Invalid, 511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 496 Invalid, 1 Unknown, 0 Unchecked, 3.5s Time] [2022-03-20 07:38:01,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states. [2022-03-20 07:38:01,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 362. [2022-03-20 07:38:01,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 357 states have (on average 1.5210084033613445) internal successors, (543), 357 states have internal predecessors, (543), 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) [2022-03-20 07:38:01,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 547 transitions. [2022-03-20 07:38:01,921 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 547 transitions. Word has length 88 [2022-03-20 07:38:01,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:38:01,922 INFO L478 AbstractCegarLoop]: Abstraction has 362 states and 547 transitions. [2022-03-20 07:38:01,922 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:38:01,922 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 547 transitions. [2022-03-20 07:38:01,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-03-20 07:38:01,922 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:38:01,923 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-03-20 07:38:01,923 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-20 07:38:01,923 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:38:01,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:38:01,924 INFO L85 PathProgramCache]: Analyzing trace with hash -987048744, now seen corresponding path program 1 times [2022-03-20 07:38:01,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:38:01,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482260179] [2022-03-20 07:38:01,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:38:01,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:38:01,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:38:02,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:38:02,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:38:02,026 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 07:38:02,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:38:02,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482260179] [2022-03-20 07:38:02,026 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482260179] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:38:02,026 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:38:02,026 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:38:02,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907182212] [2022-03-20 07:38:02,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:38:02,027 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:38:02,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:38:02,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:38:02,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:38:02,027 INFO L87 Difference]: Start difference. First operand 362 states and 547 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) [2022-03-20 07:38:03,624 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:38:05,646 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:38:06,744 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:38:07,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:38:07,444 INFO L93 Difference]: Finished difference Result 451 states and 675 transitions. [2022-03-20 07:38:07,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:38:07,444 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 96 [2022-03-20 07:38:07,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:38:07,446 INFO L225 Difference]: With dead ends: 451 [2022-03-20 07:38:07,446 INFO L226 Difference]: Without dead ends: 451 [2022-03-20 07:38:07,446 INFO L912 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 [2022-03-20 07:38:07,446 INFO L913 BasicCegarLoop]: 120 mSDtfsCounter, 142 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 61 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-03-20 07:38:07,446 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 348 Invalid, 535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 473 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2022-03-20 07:38:07,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2022-03-20 07:38:07,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 362. [2022-03-20 07:38:07,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 357 states have (on average 1.5070028011204482) internal successors, (538), 357 states have internal predecessors, (538), 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) [2022-03-20 07:38:07,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 542 transitions. [2022-03-20 07:38:07,451 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 542 transitions. Word has length 96 [2022-03-20 07:38:07,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:38:07,451 INFO L478 AbstractCegarLoop]: Abstraction has 362 states and 542 transitions. [2022-03-20 07:38:07,451 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) [2022-03-20 07:38:07,451 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 542 transitions. [2022-03-20 07:38:07,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-03-20 07:38:07,452 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:38:07,452 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:38:07,452 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-03-20 07:38:07,452 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:38:07,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:38:07,452 INFO L85 PathProgramCache]: Analyzing trace with hash 522570383, now seen corresponding path program 1 times [2022-03-20 07:38:07,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:38:07,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795356431] [2022-03-20 07:38:07,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:38:07,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:38:07,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:38:07,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:38:07,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:38:07,558 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 07:38:07,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:38:07,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795356431] [2022-03-20 07:38:07,558 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795356431] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:38:07,558 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:38:07,558 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:38:07,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529489895] [2022-03-20 07:38:07,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:38:07,558 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:38:07,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:38:07,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:38:07,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:38:07,559 INFO L87 Difference]: Start difference. First operand 362 states and 542 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:38:09,396 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:38:11,421 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:38:13,192 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:38:13,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:38:13,588 INFO L93 Difference]: Finished difference Result 441 states and 656 transitions. [2022-03-20 07:38:13,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:38:13,588 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 97 [2022-03-20 07:38:13,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:38:13,590 INFO L225 Difference]: With dead ends: 441 [2022-03-20 07:38:13,590 INFO L226 Difference]: Without dead ends: 441 [2022-03-20 07:38:13,590 INFO L912 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 [2022-03-20 07:38:13,590 INFO L913 BasicCegarLoop]: 130 mSDtfsCounter, 139 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 54 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-03-20 07:38:13,590 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 368 Invalid, 517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 462 Invalid, 1 Unknown, 0 Unchecked, 6.0s Time] [2022-03-20 07:38:13,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2022-03-20 07:38:13,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 362. [2022-03-20 07:38:13,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 357 states have (on average 1.4901960784313726) internal successors, (532), 357 states have internal predecessors, (532), 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) [2022-03-20 07:38:13,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 536 transitions. [2022-03-20 07:38:13,595 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 536 transitions. Word has length 97 [2022-03-20 07:38:13,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:38:13,595 INFO L478 AbstractCegarLoop]: Abstraction has 362 states and 536 transitions. [2022-03-20 07:38:13,595 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:38:13,595 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 536 transitions. [2022-03-20 07:38:13,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-03-20 07:38:13,596 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:38:13,596 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-03-20 07:38:13,596 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-03-20 07:38:13,596 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:38:13,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:38:13,597 INFO L85 PathProgramCache]: Analyzing trace with hash 39070128, now seen corresponding path program 1 times [2022-03-20 07:38:13,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:38:13,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17954089] [2022-03-20 07:38:13,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:38:13,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:38:13,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:38:13,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:38:13,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:38:13,683 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 07:38:13,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:38:13,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17954089] [2022-03-20 07:38:13,683 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17954089] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:38:13,683 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:38:13,683 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:38:13,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383689713] [2022-03-20 07:38:13,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:38:13,683 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:38:13,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:38:13,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:38:13,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:38:13,684 INFO L87 Difference]: Start difference. First operand 362 states and 536 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:38:15,040 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:38:16,660 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:38:18,609 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:38:19,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:38:19,014 INFO L93 Difference]: Finished difference Result 399 states and 586 transitions. [2022-03-20 07:38:19,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:38:19,014 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 104 [2022-03-20 07:38:19,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:38:19,015 INFO L225 Difference]: With dead ends: 399 [2022-03-20 07:38:19,015 INFO L226 Difference]: Without dead ends: 399 [2022-03-20 07:38:19,016 INFO L912 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 [2022-03-20 07:38:19,016 INFO L913 BasicCegarLoop]: 200 mSDtfsCounter, 77 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 515 SdHoareTripleChecker+Invalid, 496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-03-20 07:38:19,016 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [77 Valid, 515 Invalid, 496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 487 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-03-20 07:38:19,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2022-03-20 07:38:19,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 362. [2022-03-20 07:38:19,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 357 states have (on average 1.4873949579831933) internal successors, (531), 357 states have internal predecessors, (531), 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) [2022-03-20 07:38:19,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 535 transitions. [2022-03-20 07:38:19,027 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 535 transitions. Word has length 104 [2022-03-20 07:38:19,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:38:19,028 INFO L478 AbstractCegarLoop]: Abstraction has 362 states and 535 transitions. [2022-03-20 07:38:19,028 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:38:19,028 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 535 transitions. [2022-03-20 07:38:19,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-03-20 07:38:19,029 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:38:19,029 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-03-20 07:38:19,029 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-03-20 07:38:19,029 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:38:19,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:38:19,029 INFO L85 PathProgramCache]: Analyzing trace with hash 59407503, now seen corresponding path program 1 times [2022-03-20 07:38:19,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:38:19,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538616056] [2022-03-20 07:38:19,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:38:19,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:38:19,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:38:19,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:38:19,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:38:19,129 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-03-20 07:38:19,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:38:19,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538616056] [2022-03-20 07:38:19,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [538616056] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:38:19,129 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:38:19,129 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 07:38:19,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426083041] [2022-03-20 07:38:19,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:38:19,130 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 07:38:19,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:38:19,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 07:38:19,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 07:38:19,131 INFO L87 Difference]: Start difference. First operand 362 states and 535 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 3 states have internal predecessors, (72), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:38:21,850 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:38:23,877 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:38:24,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:38:24,152 INFO L93 Difference]: Finished difference Result 693 states and 1026 transitions. [2022-03-20 07:38:24,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 07:38:24,153 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 3 states have internal predecessors, (72), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 104 [2022-03-20 07:38:24,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:38:24,154 INFO L225 Difference]: With dead ends: 693 [2022-03-20 07:38:24,154 INFO L226 Difference]: Without dead ends: 693 [2022-03-20 07:38:24,155 INFO L912 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 [2022-03-20 07:38:24,155 INFO L913 BasicCegarLoop]: 241 mSDtfsCounter, 143 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 11 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-03-20 07:38:24,155 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 435 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 282 Invalid, 2 Unknown, 0 Unchecked, 5.0s Time] [2022-03-20 07:38:24,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 693 states. [2022-03-20 07:38:24,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 693 to 693. [2022-03-20 07:38:24,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 693 states, 688 states have (on average 1.4854651162790697) internal successors, (1022), 688 states have internal predecessors, (1022), 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) [2022-03-20 07:38:24,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 693 states to 693 states and 1026 transitions. [2022-03-20 07:38:24,173 INFO L78 Accepts]: Start accepts. Automaton has 693 states and 1026 transitions. Word has length 104 [2022-03-20 07:38:24,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:38:24,173 INFO L478 AbstractCegarLoop]: Abstraction has 693 states and 1026 transitions. [2022-03-20 07:38:24,173 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 3 states have internal predecessors, (72), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:38:24,174 INFO L276 IsEmpty]: Start isEmpty. Operand 693 states and 1026 transitions. [2022-03-20 07:38:24,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-03-20 07:38:24,175 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:38:24,175 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-03-20 07:38:24,175 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-03-20 07:38:24,175 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:38:24,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:38:24,175 INFO L85 PathProgramCache]: Analyzing trace with hash -1871211602, now seen corresponding path program 1 times [2022-03-20 07:38:24,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:38:24,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382441391] [2022-03-20 07:38:24,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:38:24,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:38:24,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:38:24,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:38:24,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:38:24,250 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-03-20 07:38:24,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:38:24,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382441391] [2022-03-20 07:38:24,250 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382441391] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:38:24,251 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:38:24,251 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 07:38:24,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741883381] [2022-03-20 07:38:24,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:38:24,252 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 07:38:24,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:38:24,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 07:38:24,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 07:38:24,253 INFO L87 Difference]: Start difference. First operand 693 states and 1026 transitions. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:38:25,686 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:38:26,901 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:38:27,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:38:27,143 INFO L93 Difference]: Finished difference Result 720 states and 1061 transitions. [2022-03-20 07:38:27,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 07:38:27,143 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 104 [2022-03-20 07:38:27,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:38:27,153 INFO L225 Difference]: With dead ends: 720 [2022-03-20 07:38:27,153 INFO L226 Difference]: Without dead ends: 720 [2022-03-20 07:38:27,153 INFO L912 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 [2022-03-20 07:38:27,153 INFO L913 BasicCegarLoop]: 223 mSDtfsCounter, 15 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-03-20 07:38:27,154 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 417 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-03-20 07:38:27,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 720 states. [2022-03-20 07:38:27,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 720 to 720. [2022-03-20 07:38:27,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 720 states, 715 states have (on average 1.4783216783216784) internal successors, (1057), 715 states have internal predecessors, (1057), 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) [2022-03-20 07:38:27,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 720 states to 720 states and 1061 transitions. [2022-03-20 07:38:27,161 INFO L78 Accepts]: Start accepts. Automaton has 720 states and 1061 transitions. Word has length 104 [2022-03-20 07:38:27,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:38:27,161 INFO L478 AbstractCegarLoop]: Abstraction has 720 states and 1061 transitions. [2022-03-20 07:38:27,161 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:38:27,161 INFO L276 IsEmpty]: Start isEmpty. Operand 720 states and 1061 transitions. [2022-03-20 07:38:27,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-03-20 07:38:27,162 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:38:27,162 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-03-20 07:38:27,162 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-03-20 07:38:27,163 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:38:27,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:38:27,164 INFO L85 PathProgramCache]: Analyzing trace with hash -1451694771, now seen corresponding path program 1 times [2022-03-20 07:38:27,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:38:27,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947159943] [2022-03-20 07:38:27,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:38:27,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:38:27,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:38:27,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:38:27,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:38:27,245 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2022-03-20 07:38:27,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:38:27,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947159943] [2022-03-20 07:38:27,245 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947159943] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:38:27,246 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:38:27,246 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 07:38:27,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025554348] [2022-03-20 07:38:27,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:38:27,246 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 07:38:27,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:38:27,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 07:38:27,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 07:38:27,246 INFO L87 Difference]: Start difference. First operand 720 states and 1061 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:38:29,693 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:38:30,711 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:38:30,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:38:30,947 INFO L93 Difference]: Finished difference Result 722 states and 1063 transitions. [2022-03-20 07:38:30,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 07:38:30,947 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 104 [2022-03-20 07:38:30,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:38:30,949 INFO L225 Difference]: With dead ends: 722 [2022-03-20 07:38:30,949 INFO L226 Difference]: Without dead ends: 722 [2022-03-20 07:38:30,949 INFO L912 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 [2022-03-20 07:38:30,950 INFO L913 BasicCegarLoop]: 211 mSDtfsCounter, 4 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-03-20 07:38:30,950 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 396 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-03-20 07:38:30,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 722 states. [2022-03-20 07:38:30,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 722 to 722. [2022-03-20 07:38:30,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 722 states, 717 states have (on average 1.4769874476987448) internal successors, (1059), 717 states have internal predecessors, (1059), 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) [2022-03-20 07:38:30,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 722 states to 722 states and 1063 transitions. [2022-03-20 07:38:30,957 INFO L78 Accepts]: Start accepts. Automaton has 722 states and 1063 transitions. Word has length 104 [2022-03-20 07:38:30,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:38:30,957 INFO L478 AbstractCegarLoop]: Abstraction has 722 states and 1063 transitions. [2022-03-20 07:38:30,957 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:38:30,957 INFO L276 IsEmpty]: Start isEmpty. Operand 722 states and 1063 transitions. [2022-03-20 07:38:30,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-03-20 07:38:30,958 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:38:30,958 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:38:30,958 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-03-20 07:38:30,958 INFO L403 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:38:30,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:38:30,958 INFO L85 PathProgramCache]: Analyzing trace with hash -2030270456, now seen corresponding path program 1 times [2022-03-20 07:38:30,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:38:30,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723397673] [2022-03-20 07:38:30,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:38:30,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:38:31,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:38:31,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:38:31,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:38:31,049 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-20 07:38:31,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:38:31,049 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723397673] [2022-03-20 07:38:31,050 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1723397673] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:38:31,050 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:38:31,050 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 07:38:31,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417157150] [2022-03-20 07:38:31,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:38:31,050 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 07:38:31,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:38:31,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 07:38:31,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 07:38:31,051 INFO L87 Difference]: Start difference. First operand 722 states and 1063 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:38:32,813 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:38:34,835 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:38:35,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:38:35,713 INFO L93 Difference]: Finished difference Result 1058 states and 1566 transitions. [2022-03-20 07:38:35,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 07:38:35,713 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 106 [2022-03-20 07:38:35,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:38:35,716 INFO L225 Difference]: With dead ends: 1058 [2022-03-20 07:38:35,716 INFO L226 Difference]: Without dead ends: 1058 [2022-03-20 07:38:35,716 INFO L912 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 [2022-03-20 07:38:35,716 INFO L913 BasicCegarLoop]: 194 mSDtfsCounter, 164 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-03-20 07:38:35,716 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 379 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 245 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2022-03-20 07:38:35,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1058 states. [2022-03-20 07:38:35,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1058 to 1056. [2022-03-20 07:38:35,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1056 states, 1051 states have (on average 1.4852521408182684) internal successors, (1561), 1051 states have internal predecessors, (1561), 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) [2022-03-20 07:38:35,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1056 states to 1056 states and 1565 transitions. [2022-03-20 07:38:35,744 INFO L78 Accepts]: Start accepts. Automaton has 1056 states and 1565 transitions. Word has length 106 [2022-03-20 07:38:35,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:38:35,745 INFO L478 AbstractCegarLoop]: Abstraction has 1056 states and 1565 transitions. [2022-03-20 07:38:35,745 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:38:35,745 INFO L276 IsEmpty]: Start isEmpty. Operand 1056 states and 1565 transitions. [2022-03-20 07:38:35,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-03-20 07:38:35,746 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:38:35,746 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:38:35,746 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-03-20 07:38:35,746 INFO L403 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:38:35,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:38:35,747 INFO L85 PathProgramCache]: Analyzing trace with hash 538755348, now seen corresponding path program 1 times [2022-03-20 07:38:35,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:38:35,747 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614234196] [2022-03-20 07:38:35,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:38:35,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:38:35,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:38:35,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:38:35,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:38:35,842 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-20 07:38:35,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:38:35,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614234196] [2022-03-20 07:38:35,842 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614234196] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:38:35,842 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:38:35,842 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 07:38:35,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717207657] [2022-03-20 07:38:35,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:38:35,843 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 07:38:35,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:38:35,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 07:38:35,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 07:38:35,843 INFO L87 Difference]: Start difference. First operand 1056 states and 1565 transitions. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:38:36,906 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:38:38,922 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:38:39,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:38:39,766 INFO L93 Difference]: Finished difference Result 1392 states and 2054 transitions. [2022-03-20 07:38:39,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 07:38:39,766 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 112 [2022-03-20 07:38:39,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:38:39,776 INFO L225 Difference]: With dead ends: 1392 [2022-03-20 07:38:39,776 INFO L226 Difference]: Without dead ends: 1392 [2022-03-20 07:38:39,776 INFO L912 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 [2022-03-20 07:38:39,777 INFO L913 BasicCegarLoop]: 382 mSDtfsCounter, 149 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 427 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 427 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-03-20 07:38:39,777 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 576 Invalid, 439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 427 Invalid, 1 Unknown, 0 Unchecked, 3.9s Time] [2022-03-20 07:38:39,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1392 states. [2022-03-20 07:38:39,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1392 to 1390. [2022-03-20 07:38:39,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1390 states, 1385 states have (on average 1.47942238267148) internal successors, (2049), 1385 states have internal predecessors, (2049), 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) [2022-03-20 07:38:39,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1390 states to 1390 states and 2053 transitions. [2022-03-20 07:38:39,790 INFO L78 Accepts]: Start accepts. Automaton has 1390 states and 2053 transitions. Word has length 112 [2022-03-20 07:38:39,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:38:39,790 INFO L478 AbstractCegarLoop]: Abstraction has 1390 states and 2053 transitions. [2022-03-20 07:38:39,790 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:38:39,790 INFO L276 IsEmpty]: Start isEmpty. Operand 1390 states and 2053 transitions. [2022-03-20 07:38:39,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-03-20 07:38:39,791 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:38:39,792 INFO L499 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, 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] [2022-03-20 07:38:39,792 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-03-20 07:38:39,792 INFO L403 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:38:39,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:38:39,792 INFO L85 PathProgramCache]: Analyzing trace with hash 566693233, now seen corresponding path program 1 times [2022-03-20 07:38:39,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:38:39,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27402534] [2022-03-20 07:38:39,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:38:39,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:38:39,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:38:39,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:38:39,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:38:39,890 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-20 07:38:39,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:38:39,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27402534] [2022-03-20 07:38:39,891 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27402534] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:38:39,891 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:38:39,891 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:38:39,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872425244] [2022-03-20 07:38:39,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:38:39,891 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:38:39,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:38:39,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:38:39,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:38:39,892 INFO L87 Difference]: Start difference. First operand 1390 states and 2053 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:38:41,559 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:38:43,581 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:38:45,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:38:45,218 INFO L93 Difference]: Finished difference Result 1648 states and 2429 transitions. [2022-03-20 07:38:45,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:38:45,219 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 129 [2022-03-20 07:38:45,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:38:45,222 INFO L225 Difference]: With dead ends: 1648 [2022-03-20 07:38:45,222 INFO L226 Difference]: Without dead ends: 1648 [2022-03-20 07:38:45,222 INFO L912 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 [2022-03-20 07:38:45,223 INFO L913 BasicCegarLoop]: 271 mSDtfsCounter, 72 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 595 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 654 SdHoareTripleChecker+Invalid, 603 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 595 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-03-20 07:38:45,223 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [72 Valid, 654 Invalid, 603 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 595 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2022-03-20 07:38:45,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1648 states. [2022-03-20 07:38:45,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1648 to 1477. [2022-03-20 07:38:45,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1477 states, 1472 states have (on average 1.481657608695652) internal successors, (2181), 1472 states have internal predecessors, (2181), 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) [2022-03-20 07:38:45,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1477 states to 1477 states and 2185 transitions. [2022-03-20 07:38:45,235 INFO L78 Accepts]: Start accepts. Automaton has 1477 states and 2185 transitions. Word has length 129 [2022-03-20 07:38:45,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:38:45,236 INFO L478 AbstractCegarLoop]: Abstraction has 1477 states and 2185 transitions. [2022-03-20 07:38:45,236 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:38:45,236 INFO L276 IsEmpty]: Start isEmpty. Operand 1477 states and 2185 transitions. [2022-03-20 07:38:45,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-20 07:38:45,238 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:38:45,238 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:38:45,238 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-03-20 07:38:45,238 INFO L403 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:38:45,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:38:45,238 INFO L85 PathProgramCache]: Analyzing trace with hash -224082698, now seen corresponding path program 1 times [2022-03-20 07:38:45,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:38:45,238 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924928281] [2022-03-20 07:38:45,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:38:45,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:38:45,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:38:45,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:38:45,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:38:45,345 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-03-20 07:38:45,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:38:45,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924928281] [2022-03-20 07:38:45,345 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924928281] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:38:45,345 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:38:45,346 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 07:38:45,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148227757] [2022-03-20 07:38:45,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:38:45,346 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 07:38:45,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:38:45,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 07:38:45,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 07:38:45,346 INFO L87 Difference]: Start difference. First operand 1477 states and 2185 transitions. Second operand has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:38:46,403 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:38:48,420 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:38:49,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:38:49,286 INFO L93 Difference]: Finished difference Result 1842 states and 2726 transitions. [2022-03-20 07:38:49,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 07:38:49,287 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 1 states have call successors, (3), 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 134 [2022-03-20 07:38:49,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:38:49,290 INFO L225 Difference]: With dead ends: 1842 [2022-03-20 07:38:49,291 INFO L226 Difference]: Without dead ends: 1842 [2022-03-20 07:38:49,291 INFO L912 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 [2022-03-20 07:38:49,291 INFO L913 BasicCegarLoop]: 193 mSDtfsCounter, 165 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-03-20 07:38:49,291 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 378 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 245 Invalid, 1 Unknown, 0 Unchecked, 3.9s Time] [2022-03-20 07:38:49,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1842 states. [2022-03-20 07:38:49,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1842 to 1840. [2022-03-20 07:38:49,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1840 states, 1835 states have (on average 1.48283378746594) internal successors, (2721), 1835 states have internal predecessors, (2721), 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) [2022-03-20 07:38:49,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1840 states to 1840 states and 2725 transitions. [2022-03-20 07:38:49,306 INFO L78 Accepts]: Start accepts. Automaton has 1840 states and 2725 transitions. Word has length 134 [2022-03-20 07:38:49,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:38:49,306 INFO L478 AbstractCegarLoop]: Abstraction has 1840 states and 2725 transitions. [2022-03-20 07:38:49,306 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:38:49,306 INFO L276 IsEmpty]: Start isEmpty. Operand 1840 states and 2725 transitions. [2022-03-20 07:38:49,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2022-03-20 07:38:49,308 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:38:49,308 INFO L499 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:38:49,308 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-03-20 07:38:49,309 INFO L403 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:38:49,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:38:49,309 INFO L85 PathProgramCache]: Analyzing trace with hash -2056958033, now seen corresponding path program 1 times [2022-03-20 07:38:49,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:38:49,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740850971] [2022-03-20 07:38:49,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:38:49,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:38:49,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:38:49,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:38:49,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:38:49,416 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 129 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-20 07:38:49,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:38:49,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740850971] [2022-03-20 07:38:49,416 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [740850971] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:38:49,416 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:38:49,416 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:38:49,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411805420] [2022-03-20 07:38:49,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:38:49,417 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:38:49,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:38:49,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:38:49,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:38:49,417 INFO L87 Difference]: Start difference. First operand 1840 states and 2725 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:38:51,424 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 [] [2022-03-20 07:38:51,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:38:51,884 INFO L93 Difference]: Finished difference Result 2067 states and 3044 transitions. [2022-03-20 07:38:51,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:38:51,885 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 151 [2022-03-20 07:38:51,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:38:51,889 INFO L225 Difference]: With dead ends: 2067 [2022-03-20 07:38:51,889 INFO L226 Difference]: Without dead ends: 2067 [2022-03-20 07:38:51,889 INFO L912 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 [2022-03-20 07:38:51,890 INFO L913 BasicCegarLoop]: 270 mSDtfsCounter, 87 mSDsluCounter, 382 mSDsCounter, 0 mSdLazyCounter, 591 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 652 SdHoareTripleChecker+Invalid, 599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 591 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 07:38:51,890 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [87 Valid, 652 Invalid, 599 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 591 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 07:38:51,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2067 states. [2022-03-20 07:38:51,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2067 to 1840. [2022-03-20 07:38:51,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1840 states, 1835 states have (on average 1.4806539509536785) internal successors, (2717), 1835 states have internal predecessors, (2717), 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) [2022-03-20 07:38:51,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1840 states to 1840 states and 2721 transitions. [2022-03-20 07:38:51,905 INFO L78 Accepts]: Start accepts. Automaton has 1840 states and 2721 transitions. Word has length 151 [2022-03-20 07:38:51,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:38:51,905 INFO L478 AbstractCegarLoop]: Abstraction has 1840 states and 2721 transitions. [2022-03-20 07:38:51,905 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:38:51,905 INFO L276 IsEmpty]: Start isEmpty. Operand 1840 states and 2721 transitions. [2022-03-20 07:38:51,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-03-20 07:38:51,907 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:38:51,907 INFO L499 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:38:51,908 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-03-20 07:38:51,908 INFO L403 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:38:51,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:38:51,908 INFO L85 PathProgramCache]: Analyzing trace with hash -2049187141, now seen corresponding path program 1 times [2022-03-20 07:38:51,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:38:51,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46702491] [2022-03-20 07:38:51,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:38:51,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:38:51,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:38:51,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:38:51,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:38:52,000 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 131 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-20 07:38:52,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:38:52,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46702491] [2022-03-20 07:38:52,001 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46702491] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:38:52,001 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:38:52,001 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:38:52,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146821872] [2022-03-20 07:38:52,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:38:52,001 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:38:52,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:38:52,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:38:52,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:38:52,002 INFO L87 Difference]: Start difference. First operand 1840 states and 2721 transitions. Second operand has 5 states, 5 states have (on average 24.4) internal successors, (122), 4 states have internal predecessors, (122), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:38:54,616 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 [] [2022-03-20 07:38:56,464 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:38:56,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:38:56,915 INFO L93 Difference]: Finished difference Result 2047 states and 3015 transitions. [2022-03-20 07:38:56,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:38:56,915 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 4 states have internal predecessors, (122), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 152 [2022-03-20 07:38:56,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:38:56,919 INFO L225 Difference]: With dead ends: 2047 [2022-03-20 07:38:56,919 INFO L226 Difference]: Without dead ends: 2047 [2022-03-20 07:38:56,920 INFO L912 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 [2022-03-20 07:38:56,920 INFO L913 BasicCegarLoop]: 264 mSDtfsCounter, 79 mSDsluCounter, 376 mSDsCounter, 0 mSdLazyCounter, 581 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 640 SdHoareTripleChecker+Invalid, 589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 581 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-03-20 07:38:56,920 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [79 Valid, 640 Invalid, 589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 581 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2022-03-20 07:38:56,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2047 states. [2022-03-20 07:38:56,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2047 to 1840. [2022-03-20 07:38:56,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1840 states, 1835 states have (on average 1.4784741144414169) internal successors, (2713), 1835 states have internal predecessors, (2713), 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) [2022-03-20 07:38:56,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1840 states to 1840 states and 2717 transitions. [2022-03-20 07:38:56,935 INFO L78 Accepts]: Start accepts. Automaton has 1840 states and 2717 transitions. Word has length 152 [2022-03-20 07:38:56,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:38:56,935 INFO L478 AbstractCegarLoop]: Abstraction has 1840 states and 2717 transitions. [2022-03-20 07:38:56,935 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 4 states have internal predecessors, (122), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:38:56,935 INFO L276 IsEmpty]: Start isEmpty. Operand 1840 states and 2717 transitions. [2022-03-20 07:38:56,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-03-20 07:38:56,937 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:38:56,937 INFO L499 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, 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] [2022-03-20 07:38:56,937 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-03-20 07:38:56,937 INFO L403 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:38:56,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:38:56,938 INFO L85 PathProgramCache]: Analyzing trace with hash 1005470395, now seen corresponding path program 1 times [2022-03-20 07:38:56,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:38:56,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988466457] [2022-03-20 07:38:56,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:38:56,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:38:56,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:38:57,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:38:57,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:38:57,029 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 139 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-20 07:38:57,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:38:57,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988466457] [2022-03-20 07:38:57,029 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988466457] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:38:57,029 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:38:57,030 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:38:57,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127680576] [2022-03-20 07:38:57,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:38:57,030 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:38:57,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:38:57,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:38:57,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:38:57,031 INFO L87 Difference]: Start difference. First operand 1840 states and 2717 transitions. Second operand has 5 states, 5 states have (on average 25.0) internal successors, (125), 4 states have internal predecessors, (125), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:38:58,261 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:39:00,279 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 [] [2022-03-20 07:39:01,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:39:01,935 INFO L93 Difference]: Finished difference Result 2015 states and 2959 transitions. [2022-03-20 07:39:01,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:39:01,936 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.0) internal successors, (125), 4 states have internal predecessors, (125), 1 states have call successors, (3), 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 [2022-03-20 07:39:01,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:39:01,940 INFO L225 Difference]: With dead ends: 2015 [2022-03-20 07:39:01,940 INFO L226 Difference]: Without dead ends: 2015 [2022-03-20 07:39:01,940 INFO L912 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 [2022-03-20 07:39:01,941 INFO L913 BasicCegarLoop]: 259 mSDtfsCounter, 65 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 545 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 630 SdHoareTripleChecker+Invalid, 553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 545 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-03-20 07:39:01,941 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [65 Valid, 630 Invalid, 553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 545 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2022-03-20 07:39:01,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2015 states. [2022-03-20 07:39:01,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2015 to 1824. [2022-03-20 07:39:01,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1824 states, 1819 states have (on average 1.4760857614073666) internal successors, (2685), 1819 states have internal predecessors, (2685), 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) [2022-03-20 07:39:01,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1824 states to 1824 states and 2689 transitions. [2022-03-20 07:39:01,971 INFO L78 Accepts]: Start accepts. Automaton has 1824 states and 2689 transitions. Word has length 155 [2022-03-20 07:39:01,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:39:01,971 INFO L478 AbstractCegarLoop]: Abstraction has 1824 states and 2689 transitions. [2022-03-20 07:39:01,972 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.0) internal successors, (125), 4 states have internal predecessors, (125), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:39:01,972 INFO L276 IsEmpty]: Start isEmpty. Operand 1824 states and 2689 transitions. [2022-03-20 07:39:01,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-03-20 07:39:01,973 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:39:01,973 INFO L499 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, 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] [2022-03-20 07:39:01,974 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-03-20 07:39:01,974 INFO L403 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:39:01,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:39:01,974 INFO L85 PathProgramCache]: Analyzing trace with hash -1789143693, now seen corresponding path program 1 times [2022-03-20 07:39:01,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:39:01,974 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252130023] [2022-03-20 07:39:01,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:39:01,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:39:02,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:39:02,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:39:02,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:39:02,069 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 141 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-20 07:39:02,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:39:02,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252130023] [2022-03-20 07:39:02,069 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252130023] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:39:02,069 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:39:02,069 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:39:02,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914857290] [2022-03-20 07:39:02,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:39:02,070 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:39:02,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:39:02,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:39:02,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:39:02,070 INFO L87 Difference]: Start difference. First operand 1824 states and 2689 transitions. Second operand has 5 states, 5 states have (on average 25.2) internal successors, (126), 4 states have internal predecessors, (126), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:39:05,025 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 [] [2022-03-20 07:39:06,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:39:06,114 INFO L93 Difference]: Finished difference Result 2015 states and 2955 transitions. [2022-03-20 07:39:06,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:39:06,114 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.2) internal successors, (126), 4 states have internal predecessors, (126), 1 states have call successors, (3), 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 [2022-03-20 07:39:06,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:39:06,120 INFO L225 Difference]: With dead ends: 2015 [2022-03-20 07:39:06,120 INFO L226 Difference]: Without dead ends: 2015 [2022-03-20 07:39:06,120 INFO L912 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 [2022-03-20 07:39:06,121 INFO L913 BasicCegarLoop]: 258 mSDtfsCounter, 63 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 544 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 628 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 544 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-03-20 07:39:06,121 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [63 Valid, 628 Invalid, 552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 544 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time] [2022-03-20 07:39:06,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2015 states. [2022-03-20 07:39:06,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2015 to 1844. [2022-03-20 07:39:06,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1844 states, 1839 states have (on average 1.475258292550299) internal successors, (2713), 1839 states have internal predecessors, (2713), 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) [2022-03-20 07:39:06,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1844 states to 1844 states and 2717 transitions. [2022-03-20 07:39:06,137 INFO L78 Accepts]: Start accepts. Automaton has 1844 states and 2717 transitions. Word has length 156 [2022-03-20 07:39:06,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:39:06,138 INFO L478 AbstractCegarLoop]: Abstraction has 1844 states and 2717 transitions. [2022-03-20 07:39:06,138 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.2) internal successors, (126), 4 states have internal predecessors, (126), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:39:06,138 INFO L276 IsEmpty]: Start isEmpty. Operand 1844 states and 2717 transitions. [2022-03-20 07:39:06,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-03-20 07:39:06,139 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:39:06,139 INFO L499 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, 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] [2022-03-20 07:39:06,140 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-03-20 07:39:06,140 INFO L403 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:39:06,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:39:06,140 INFO L85 PathProgramCache]: Analyzing trace with hash -116849752, now seen corresponding path program 1 times [2022-03-20 07:39:06,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:39:06,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327069702] [2022-03-20 07:39:06,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:39:06,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:39:06,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:39:06,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:39:06,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:39:06,250 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 133 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-20 07:39:06,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:39:06,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327069702] [2022-03-20 07:39:06,250 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [327069702] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:39:06,250 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:39:06,250 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:39:06,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57326621] [2022-03-20 07:39:06,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:39:06,251 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:39:06,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:39:06,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:39:06,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:39:06,252 INFO L87 Difference]: Start difference. First operand 1844 states and 2717 transitions. Second operand has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 states have internal predecessors, (127), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:39:07,386 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:39:09,131 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:39:11,153 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 [] [2022-03-20 07:39:11,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:39:11,573 INFO L93 Difference]: Finished difference Result 2015 states and 2951 transitions. [2022-03-20 07:39:11,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:39:11,574 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 states have internal predecessors, (127), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 157 [2022-03-20 07:39:11,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:39:11,578 INFO L225 Difference]: With dead ends: 2015 [2022-03-20 07:39:11,578 INFO L226 Difference]: Without dead ends: 2015 [2022-03-20 07:39:11,578 INFO L912 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 [2022-03-20 07:39:11,579 INFO L913 BasicCegarLoop]: 257 mSDtfsCounter, 66 mSDsluCounter, 369 mSDsCounter, 0 mSdLazyCounter, 543 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 626 SdHoareTripleChecker+Invalid, 551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 543 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-03-20 07:39:11,579 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [66 Valid, 626 Invalid, 551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 543 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2022-03-20 07:39:11,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2015 states. [2022-03-20 07:39:11,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2015 to 1844. [2022-03-20 07:39:11,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1844 states, 1839 states have (on average 1.473083197389886) internal successors, (2709), 1839 states have internal predecessors, (2709), 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) [2022-03-20 07:39:11,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1844 states to 1844 states and 2713 transitions. [2022-03-20 07:39:11,593 INFO L78 Accepts]: Start accepts. Automaton has 1844 states and 2713 transitions. Word has length 157 [2022-03-20 07:39:11,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:39:11,594 INFO L478 AbstractCegarLoop]: Abstraction has 1844 states and 2713 transitions. [2022-03-20 07:39:11,594 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 states have internal predecessors, (127), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:39:11,594 INFO L276 IsEmpty]: Start isEmpty. Operand 1844 states and 2713 transitions. [2022-03-20 07:39:11,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-03-20 07:39:11,595 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:39:11,595 INFO L499 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, 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] [2022-03-20 07:39:11,596 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-03-20 07:39:11,596 INFO L403 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:39:11,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:39:11,596 INFO L85 PathProgramCache]: Analyzing trace with hash -1499023576, now seen corresponding path program 1 times [2022-03-20 07:39:11,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:39:11,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771281848] [2022-03-20 07:39:11,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:39:11,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:39:11,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:39:11,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:39:11,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:39:11,687 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 143 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-20 07:39:11,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:39:11,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771281848] [2022-03-20 07:39:11,688 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771281848] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:39:11,688 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:39:11,688 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:39:11,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605664445] [2022-03-20 07:39:11,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:39:11,688 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:39:11,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:39:11,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:39:11,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:39:11,689 INFO L87 Difference]: Start difference. First operand 1844 states and 2713 transitions. Second operand has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 states have internal predecessors, (127), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:39:14,944 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 [] [2022-03-20 07:39:16,967 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 [] [2022-03-20 07:39:17,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:39:17,382 INFO L93 Difference]: Finished difference Result 2231 states and 3262 transitions. [2022-03-20 07:39:17,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:39:17,382 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 states have internal predecessors, (127), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 157 [2022-03-20 07:39:17,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:39:17,386 INFO L225 Difference]: With dead ends: 2231 [2022-03-20 07:39:17,386 INFO L226 Difference]: Without dead ends: 2231 [2022-03-20 07:39:17,386 INFO L912 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 [2022-03-20 07:39:17,386 INFO L913 BasicCegarLoop]: 132 mSDtfsCounter, 118 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 56 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-03-20 07:39:17,386 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 372 Invalid, 521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 463 Invalid, 2 Unknown, 0 Unchecked, 5.7s Time] [2022-03-20 07:39:17,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2231 states. [2022-03-20 07:39:17,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2231 to 1859. [2022-03-20 07:39:17,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1859 states, 1854 states have (on average 1.4692556634304208) internal successors, (2724), 1854 states have internal predecessors, (2724), 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) [2022-03-20 07:39:17,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1859 states to 1859 states and 2728 transitions. [2022-03-20 07:39:17,402 INFO L78 Accepts]: Start accepts. Automaton has 1859 states and 2728 transitions. Word has length 157 [2022-03-20 07:39:17,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:39:17,402 INFO L478 AbstractCegarLoop]: Abstraction has 1859 states and 2728 transitions. [2022-03-20 07:39:17,402 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 states have internal predecessors, (127), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:39:17,402 INFO L276 IsEmpty]: Start isEmpty. Operand 1859 states and 2728 transitions. [2022-03-20 07:39:17,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-03-20 07:39:17,404 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:39:17,404 INFO L499 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, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:39:17,404 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-03-20 07:39:17,404 INFO L403 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:39:17,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:39:17,405 INFO L85 PathProgramCache]: Analyzing trace with hash -1141285446, now seen corresponding path program 1 times [2022-03-20 07:39:17,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:39:17,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979665723] [2022-03-20 07:39:17,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:39:17,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:39:17,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:39:17,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:39:17,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:39:17,500 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-20 07:39:17,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:39:17,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979665723] [2022-03-20 07:39:17,501 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979665723] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:39:17,501 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:39:17,501 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:39:17,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807724210] [2022-03-20 07:39:17,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:39:17,501 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:39:17,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:39:17,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:39:17,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:39:17,502 INFO L87 Difference]: Start difference. First operand 1859 states and 2728 transitions. Second operand has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 states have internal predecessors, (127), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:39:19,288 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:39:21,023 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:39:22,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:39:22,399 INFO L93 Difference]: Finished difference Result 2010 states and 2934 transitions. [2022-03-20 07:39:22,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:39:22,399 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 states have internal predecessors, (127), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 157 [2022-03-20 07:39:22,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:39:22,412 INFO L225 Difference]: With dead ends: 2010 [2022-03-20 07:39:22,412 INFO L226 Difference]: Without dead ends: 2010 [2022-03-20 07:39:22,413 INFO L912 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 [2022-03-20 07:39:22,413 INFO L913 BasicCegarLoop]: 253 mSDtfsCounter, 56 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 526 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 618 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 526 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-03-20 07:39:22,413 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [56 Valid, 618 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 526 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-03-20 07:39:22,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2010 states. [2022-03-20 07:39:22,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2010 to 1867. [2022-03-20 07:39:22,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1867 states, 1862 states have (on average 1.4672395273899033) internal successors, (2732), 1862 states have internal predecessors, (2732), 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) [2022-03-20 07:39:22,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1867 states to 1867 states and 2736 transitions. [2022-03-20 07:39:22,427 INFO L78 Accepts]: Start accepts. Automaton has 1867 states and 2736 transitions. Word has length 157 [2022-03-20 07:39:22,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:39:22,427 INFO L478 AbstractCegarLoop]: Abstraction has 1867 states and 2736 transitions. [2022-03-20 07:39:22,428 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 states have internal predecessors, (127), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:39:22,428 INFO L276 IsEmpty]: Start isEmpty. Operand 1867 states and 2736 transitions. [2022-03-20 07:39:22,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-03-20 07:39:22,429 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:39:22,429 INFO L499 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, 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] [2022-03-20 07:39:22,429 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-03-20 07:39:22,429 INFO L403 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:39:22,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:39:22,430 INFO L85 PathProgramCache]: Analyzing trace with hash -890117485, now seen corresponding path program 1 times [2022-03-20 07:39:22,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:39:22,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145928586] [2022-03-20 07:39:22,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:39:22,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:39:22,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:39:22,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:39:22,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:39:22,528 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 135 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-20 07:39:22,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:39:22,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145928586] [2022-03-20 07:39:22,529 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1145928586] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:39:22,529 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:39:22,529 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:39:22,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2147173785] [2022-03-20 07:39:22,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:39:22,529 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:39:22,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:39:22,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:39:22,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:39:22,530 INFO L87 Difference]: Start difference. First operand 1867 states and 2736 transitions. Second operand has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:39:24,426 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:39:26,449 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:39:28,349 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:39:28,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:39:28,753 INFO L93 Difference]: Finished difference Result 2002 states and 2918 transitions. [2022-03-20 07:39:28,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:39:28,754 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 158 [2022-03-20 07:39:28,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:39:28,757 INFO L225 Difference]: With dead ends: 2002 [2022-03-20 07:39:28,757 INFO L226 Difference]: Without dead ends: 2002 [2022-03-20 07:39:28,757 INFO L912 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 [2022-03-20 07:39:28,757 INFO L913 BasicCegarLoop]: 252 mSDtfsCounter, 59 mSDsluCounter, 364 mSDsCounter, 0 mSdLazyCounter, 513 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 616 SdHoareTripleChecker+Invalid, 519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 513 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-03-20 07:39:28,758 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [59 Valid, 616 Invalid, 519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 513 Invalid, 1 Unknown, 0 Unchecked, 6.2s Time] [2022-03-20 07:39:28,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2002 states. [2022-03-20 07:39:28,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2002 to 1867. [2022-03-20 07:39:28,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1867 states, 1862 states have (on average 1.4650912996777659) internal successors, (2728), 1862 states have internal predecessors, (2728), 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) [2022-03-20 07:39:28,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1867 states to 1867 states and 2732 transitions. [2022-03-20 07:39:28,774 INFO L78 Accepts]: Start accepts. Automaton has 1867 states and 2732 transitions. Word has length 158 [2022-03-20 07:39:28,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:39:28,774 INFO L478 AbstractCegarLoop]: Abstraction has 1867 states and 2732 transitions. [2022-03-20 07:39:28,774 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:39:28,774 INFO L276 IsEmpty]: Start isEmpty. Operand 1867 states and 2732 transitions. [2022-03-20 07:39:28,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2022-03-20 07:39:28,776 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:39:28,776 INFO L499 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:39:28,776 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-03-20 07:39:28,776 INFO L403 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:39:28,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:39:28,776 INFO L85 PathProgramCache]: Analyzing trace with hash -1644898489, now seen corresponding path program 1 times [2022-03-20 07:39:28,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:39:28,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984895608] [2022-03-20 07:39:28,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:39:28,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:39:28,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:39:28,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:39:28,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:39:28,870 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 147 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-20 07:39:28,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:39:28,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984895608] [2022-03-20 07:39:28,870 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984895608] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:39:28,870 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:39:28,870 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:39:28,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185009982] [2022-03-20 07:39:28,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:39:28,871 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:39:28,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:39:28,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:39:28,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:39:28,872 INFO L87 Difference]: Start difference. First operand 1867 states and 2732 transitions. Second operand has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:39:31,948 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:39:33,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:39:33,142 INFO L93 Difference]: Finished difference Result 2002 states and 2914 transitions. [2022-03-20 07:39:33,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:39:33,143 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 160 [2022-03-20 07:39:33,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:39:33,146 INFO L225 Difference]: With dead ends: 2002 [2022-03-20 07:39:33,146 INFO L226 Difference]: Without dead ends: 2002 [2022-03-20 07:39:33,146 INFO L912 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 [2022-03-20 07:39:33,147 INFO L913 BasicCegarLoop]: 251 mSDtfsCounter, 52 mSDsluCounter, 363 mSDsCounter, 0 mSdLazyCounter, 513 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 614 SdHoareTripleChecker+Invalid, 518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 513 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-03-20 07:39:33,147 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 614 Invalid, 518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 513 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-03-20 07:39:33,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2002 states. [2022-03-20 07:39:33,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2002 to 1871. [2022-03-20 07:39:33,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1871 states, 1866 states have (on average 1.4640943193997857) internal successors, (2732), 1866 states have internal predecessors, (2732), 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) [2022-03-20 07:39:33,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1871 states to 1871 states and 2736 transitions. [2022-03-20 07:39:33,165 INFO L78 Accepts]: Start accepts. Automaton has 1871 states and 2736 transitions. Word has length 160 [2022-03-20 07:39:33,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:39:33,165 INFO L478 AbstractCegarLoop]: Abstraction has 1871 states and 2736 transitions. [2022-03-20 07:39:33,165 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:39:33,165 INFO L276 IsEmpty]: Start isEmpty. Operand 1871 states and 2736 transitions. [2022-03-20 07:39:33,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2022-03-20 07:39:33,167 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:39:33,167 INFO L499 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:39:33,167 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-03-20 07:39:33,167 INFO L403 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:39:33,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:39:33,168 INFO L85 PathProgramCache]: Analyzing trace with hash -231774159, now seen corresponding path program 1 times [2022-03-20 07:39:33,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:39:33,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28396515] [2022-03-20 07:39:33,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:39:33,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:39:33,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:39:33,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:39:33,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:39:33,265 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 149 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-20 07:39:33,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:39:33,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28396515] [2022-03-20 07:39:33,265 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [28396515] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:39:33,265 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:39:33,265 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:39:33,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87312040] [2022-03-20 07:39:33,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:39:33,265 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:39:33,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:39:33,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:39:33,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:39:33,266 INFO L87 Difference]: Start difference. First operand 1871 states and 2736 transitions. Second operand has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:39:34,575 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:39:36,595 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:39:37,812 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:39:38,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:39:38,947 INFO L93 Difference]: Finished difference Result 2243 states and 3255 transitions. [2022-03-20 07:39:38,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:39:38,948 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 1 states have call successors, (3), 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 161 [2022-03-20 07:39:38,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:39:38,951 INFO L225 Difference]: With dead ends: 2243 [2022-03-20 07:39:38,951 INFO L226 Difference]: Without dead ends: 2243 [2022-03-20 07:39:38,951 INFO L912 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 [2022-03-20 07:39:38,951 INFO L913 BasicCegarLoop]: 130 mSDtfsCounter, 114 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 56 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-03-20 07:39:38,951 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 368 Invalid, 519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 462 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2022-03-20 07:39:38,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2243 states. [2022-03-20 07:39:38,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2243 to 1886. [2022-03-20 07:39:38,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1886 states, 1881 states have (on average 1.4603934077618288) internal successors, (2747), 1881 states have internal predecessors, (2747), 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) [2022-03-20 07:39:38,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1886 states to 1886 states and 2751 transitions. [2022-03-20 07:39:38,966 INFO L78 Accepts]: Start accepts. Automaton has 1886 states and 2751 transitions. Word has length 161 [2022-03-20 07:39:38,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:39:38,966 INFO L478 AbstractCegarLoop]: Abstraction has 1886 states and 2751 transitions. [2022-03-20 07:39:38,966 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:39:38,966 INFO L276 IsEmpty]: Start isEmpty. Operand 1886 states and 2751 transitions. [2022-03-20 07:39:38,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2022-03-20 07:39:38,968 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:39:38,968 INFO L499 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, 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] [2022-03-20 07:39:38,968 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-03-20 07:39:38,968 INFO L403 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:39:38,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:39:38,969 INFO L85 PathProgramCache]: Analyzing trace with hash -242797578, now seen corresponding path program 1 times [2022-03-20 07:39:38,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:39:38,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98427602] [2022-03-20 07:39:38,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:39:38,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:39:39,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:39:39,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:39:39,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:39:39,079 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 151 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-20 07:39:39,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:39:39,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98427602] [2022-03-20 07:39:39,081 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98427602] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:39:39,081 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:39:39,081 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:39:39,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890477256] [2022-03-20 07:39:39,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:39:39,081 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:39:39,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:39:39,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:39:39,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:39:39,082 INFO L87 Difference]: Start difference. First operand 1886 states and 2751 transitions. Second operand has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:39:41,989 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:39:44,013 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:39:44,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:39:44,424 INFO L93 Difference]: Finished difference Result 2001 states and 2901 transitions. [2022-03-20 07:39:44,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:39:44,425 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 1 states have call successors, (3), 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 161 [2022-03-20 07:39:44,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:39:44,427 INFO L225 Difference]: With dead ends: 2001 [2022-03-20 07:39:44,428 INFO L226 Difference]: Without dead ends: 2001 [2022-03-20 07:39:44,428 INFO L912 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 [2022-03-20 07:39:44,428 INFO L913 BasicCegarLoop]: 246 mSDtfsCounter, 45 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 498 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 604 SdHoareTripleChecker+Invalid, 505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 498 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-03-20 07:39:44,428 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 604 Invalid, 505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 498 Invalid, 2 Unknown, 0 Unchecked, 5.3s Time] [2022-03-20 07:39:44,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2001 states. [2022-03-20 07:39:44,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2001 to 1894. [2022-03-20 07:39:44,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1894 states, 1889 states have (on average 1.4584436209634728) internal successors, (2755), 1889 states have internal predecessors, (2755), 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) [2022-03-20 07:39:44,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1894 states to 1894 states and 2759 transitions. [2022-03-20 07:39:44,444 INFO L78 Accepts]: Start accepts. Automaton has 1894 states and 2759 transitions. Word has length 161 [2022-03-20 07:39:44,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:39:44,444 INFO L478 AbstractCegarLoop]: Abstraction has 1894 states and 2759 transitions. [2022-03-20 07:39:44,444 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:39:44,444 INFO L276 IsEmpty]: Start isEmpty. Operand 1894 states and 2759 transitions. [2022-03-20 07:39:44,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2022-03-20 07:39:44,446 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:39:44,446 INFO L499 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, 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] [2022-03-20 07:39:44,446 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-03-20 07:39:44,446 INFO L403 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:39:44,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:39:44,446 INFO L85 PathProgramCache]: Analyzing trace with hash 1789542991, now seen corresponding path program 1 times [2022-03-20 07:39:44,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:39:44,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926343597] [2022-03-20 07:39:44,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:39:44,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:39:44,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:39:44,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:39:44,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:39:44,558 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 153 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-20 07:39:44,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:39:44,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926343597] [2022-03-20 07:39:44,558 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926343597] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:39:44,558 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:39:44,559 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:39:44,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942062151] [2022-03-20 07:39:44,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:39:44,559 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:39:44,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:39:44,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:39:44,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:39:44,559 INFO L87 Difference]: Start difference. First operand 1894 states and 2759 transitions. Second operand has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:39:45,769 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:39:47,697 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:39:49,679 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:39:50,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:39:50,095 INFO L93 Difference]: Finished difference Result 1993 states and 2889 transitions. [2022-03-20 07:39:50,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:39:50,095 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 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 [2022-03-20 07:39:50,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:39:50,098 INFO L225 Difference]: With dead ends: 1993 [2022-03-20 07:39:50,098 INFO L226 Difference]: Without dead ends: 1993 [2022-03-20 07:39:50,098 INFO L912 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 [2022-03-20 07:39:50,098 INFO L913 BasicCegarLoop]: 244 mSDtfsCounter, 42 mSDsluCounter, 356 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 600 SdHoareTripleChecker+Invalid, 499 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-03-20 07:39:50,098 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [42 Valid, 600 Invalid, 499 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 494 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2022-03-20 07:39:50,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1993 states. [2022-03-20 07:39:50,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1993 to 1898. [2022-03-20 07:39:50,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1898 states, 1893 states have (on average 1.4574749075541469) internal successors, (2759), 1893 states have internal predecessors, (2759), 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) [2022-03-20 07:39:50,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1898 states to 1898 states and 2763 transitions. [2022-03-20 07:39:50,114 INFO L78 Accepts]: Start accepts. Automaton has 1898 states and 2763 transitions. Word has length 162 [2022-03-20 07:39:50,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:39:50,114 INFO L478 AbstractCegarLoop]: Abstraction has 1898 states and 2763 transitions. [2022-03-20 07:39:50,114 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:39:50,115 INFO L276 IsEmpty]: Start isEmpty. Operand 1898 states and 2763 transitions. [2022-03-20 07:39:50,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2022-03-20 07:39:50,116 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:39:50,116 INFO L499 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:39:50,117 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-03-20 07:39:50,117 INFO L403 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:39:50,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:39:50,117 INFO L85 PathProgramCache]: Analyzing trace with hash 268806909, now seen corresponding path program 1 times [2022-03-20 07:39:50,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:39:50,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077932960] [2022-03-20 07:39:50,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:39:50,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:39:50,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:39:50,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:39:50,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:39:50,233 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 154 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-20 07:39:50,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:39:50,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077932960] [2022-03-20 07:39:50,234 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1077932960] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:39:50,234 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:39:50,234 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:39:50,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118226053] [2022-03-20 07:39:50,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:39:50,234 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:39:50,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:39:50,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:39:50,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:39:50,235 INFO L87 Difference]: Start difference. First operand 1898 states and 2763 transitions. Second operand has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:39:52,242 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 [] [2022-03-20 07:39:52,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:39:52,641 INFO L93 Difference]: Finished difference Result 1993 states and 2885 transitions. [2022-03-20 07:39:52,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:39:52,642 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 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 [2022-03-20 07:39:52,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:39:52,653 INFO L225 Difference]: With dead ends: 1993 [2022-03-20 07:39:52,653 INFO L226 Difference]: Without dead ends: 1993 [2022-03-20 07:39:52,653 INFO L912 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 [2022-03-20 07:39:52,654 INFO L913 BasicCegarLoop]: 243 mSDtfsCounter, 40 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 598 SdHoareTripleChecker+Invalid, 495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 07:39:52,654 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 598 Invalid, 495 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 489 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 07:39:52,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1993 states. [2022-03-20 07:39:52,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1993 to 1902. [2022-03-20 07:39:52,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1902 states, 1897 states have (on average 1.456510279388508) internal successors, (2763), 1897 states have internal predecessors, (2763), 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) [2022-03-20 07:39:52,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1902 states to 1902 states and 2767 transitions. [2022-03-20 07:39:52,681 INFO L78 Accepts]: Start accepts. Automaton has 1902 states and 2767 transitions. Word has length 162 [2022-03-20 07:39:52,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:39:52,681 INFO L478 AbstractCegarLoop]: Abstraction has 1902 states and 2767 transitions. [2022-03-20 07:39:52,681 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:39:52,681 INFO L276 IsEmpty]: Start isEmpty. Operand 1902 states and 2767 transitions. [2022-03-20 07:39:52,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-03-20 07:39:52,683 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:39:52,683 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:39:52,683 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-03-20 07:39:52,683 INFO L403 AbstractCegarLoop]: === Iteration 46 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:39:52,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:39:52,684 INFO L85 PathProgramCache]: Analyzing trace with hash 207567975, now seen corresponding path program 1 times [2022-03-20 07:39:52,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:39:52,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94672761] [2022-03-20 07:39:52,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:39:52,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:39:52,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:39:52,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:39:52,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:39:52,797 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 156 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-20 07:39:52,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:39:52,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94672761] [2022-03-20 07:39:52,797 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94672761] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:39:52,798 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:39:52,798 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:39:52,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444548035] [2022-03-20 07:39:52,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:39:52,798 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:39:52,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:39:52,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:39:52,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:39:52,798 INFO L87 Difference]: Start difference. First operand 1902 states and 2767 transitions. Second operand has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:39:54,701 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:39:56,726 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:39:58,713 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:39:59,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:39:59,134 INFO L93 Difference]: Finished difference Result 2259 states and 3256 transitions. [2022-03-20 07:39:59,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:39:59,135 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 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 [2022-03-20 07:39:59,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:39:59,152 INFO L225 Difference]: With dead ends: 2259 [2022-03-20 07:39:59,152 INFO L226 Difference]: Without dead ends: 2259 [2022-03-20 07:39:59,152 INFO L912 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 [2022-03-20 07:39:59,152 INFO L913 BasicCegarLoop]: 130 mSDtfsCounter, 109 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 56 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-03-20 07:39:59,152 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 368 Invalid, 519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 462 Invalid, 1 Unknown, 0 Unchecked, 6.3s Time] [2022-03-20 07:39:59,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2259 states. [2022-03-20 07:39:59,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2259 to 1922. [2022-03-20 07:39:59,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1922 states, 1917 states have (on average 1.4543557642149192) internal successors, (2788), 1917 states have internal predecessors, (2788), 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) [2022-03-20 07:39:59,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1922 states to 1922 states and 2792 transitions. [2022-03-20 07:39:59,167 INFO L78 Accepts]: Start accepts. Automaton has 1922 states and 2792 transitions. Word has length 163 [2022-03-20 07:39:59,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:39:59,167 INFO L478 AbstractCegarLoop]: Abstraction has 1922 states and 2792 transitions. [2022-03-20 07:39:59,167 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:39:59,167 INFO L276 IsEmpty]: Start isEmpty. Operand 1922 states and 2792 transitions. [2022-03-20 07:39:59,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-03-20 07:39:59,169 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:39:59,169 INFO L499 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] [2022-03-20 07:39:59,169 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-03-20 07:39:59,169 INFO L403 AbstractCegarLoop]: === Iteration 47 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:39:59,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:39:59,170 INFO L85 PathProgramCache]: Analyzing trace with hash 1467222768, now seen corresponding path program 1 times [2022-03-20 07:39:59,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:39:59,170 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652585450] [2022-03-20 07:39:59,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:39:59,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:39:59,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:39:59,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:39:59,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:39:59,266 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2022-03-20 07:39:59,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:39:59,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652585450] [2022-03-20 07:39:59,266 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652585450] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:39:59,266 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:39:59,266 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 07:39:59,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068318689] [2022-03-20 07:39:59,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:39:59,266 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 07:39:59,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:39:59,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 07:39:59,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 07:39:59,267 INFO L87 Difference]: Start difference. First operand 1922 states and 2792 transitions. Second operand has 4 states, 4 states have (on average 26.5) internal successors, (106), 3 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) [2022-03-20 07:40:00,700 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:40:02,718 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 [] [2022-03-20 07:40:03,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:40:03,761 INFO L93 Difference]: Finished difference Result 2302 states and 3343 transitions. [2022-03-20 07:40:03,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 07:40:03,761 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 3 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 171 [2022-03-20 07:40:03,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:40:03,764 INFO L225 Difference]: With dead ends: 2302 [2022-03-20 07:40:03,764 INFO L226 Difference]: Without dead ends: 2302 [2022-03-20 07:40:03,765 INFO L912 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 [2022-03-20 07:40:03,765 INFO L913 BasicCegarLoop]: 387 mSDtfsCounter, 145 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 581 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-03-20 07:40:03,765 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 581 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 428 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2022-03-20 07:40:03,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2302 states. [2022-03-20 07:40:03,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2302 to 2302. [2022-03-20 07:40:03,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2302 states, 2297 states have (on average 1.453635176316935) internal successors, (3339), 2297 states have internal predecessors, (3339), 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) [2022-03-20 07:40:03,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2302 states to 2302 states and 3343 transitions. [2022-03-20 07:40:03,782 INFO L78 Accepts]: Start accepts. Automaton has 2302 states and 3343 transitions. Word has length 171 [2022-03-20 07:40:03,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:40:03,782 INFO L478 AbstractCegarLoop]: Abstraction has 2302 states and 3343 transitions. [2022-03-20 07:40:03,782 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 3 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) [2022-03-20 07:40:03,782 INFO L276 IsEmpty]: Start isEmpty. Operand 2302 states and 3343 transitions. [2022-03-20 07:40:03,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-03-20 07:40:03,784 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:40:03,784 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:40:03,785 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-03-20 07:40:03,785 INFO L403 AbstractCegarLoop]: === Iteration 48 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:40:03,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:40:03,785 INFO L85 PathProgramCache]: Analyzing trace with hash -73974424, now seen corresponding path program 1 times [2022-03-20 07:40:03,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:40:03,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658787745] [2022-03-20 07:40:03,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:40:03,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:40:03,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:40:03,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:40:03,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:40:03,878 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 160 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-20 07:40:03,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:40:03,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658787745] [2022-03-20 07:40:03,878 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [658787745] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:40:03,878 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:40:03,878 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 07:40:03,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102676115] [2022-03-20 07:40:03,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:40:03,887 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 07:40:03,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:40:03,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 07:40:03,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 07:40:03,888 INFO L87 Difference]: Start difference. First operand 2302 states and 3343 transitions. Second operand has 4 states, 4 states have (on average 35.5) internal successors, (142), 3 states have internal predecessors, (142), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:40:06,425 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:40:06,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:40:06,821 INFO L93 Difference]: Finished difference Result 2677 states and 3888 transitions. [2022-03-20 07:40:06,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 07:40:06,821 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.5) internal successors, (142), 3 states have internal predecessors, (142), 1 states have call successors, (3), 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 172 [2022-03-20 07:40:06,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:40:06,824 INFO L225 Difference]: With dead ends: 2677 [2022-03-20 07:40:06,824 INFO L226 Difference]: Without dead ends: 2677 [2022-03-20 07:40:06,824 INFO L912 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 [2022-03-20 07:40:06,837 INFO L913 BasicCegarLoop]: 380 mSDtfsCounter, 137 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 419 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 574 SdHoareTripleChecker+Invalid, 427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-03-20 07:40:06,840 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [137 Valid, 574 Invalid, 427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 419 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-03-20 07:40:06,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2677 states. [2022-03-20 07:40:06,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2677 to 2677. [2022-03-20 07:40:06,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2677 states, 2672 states have (on average 1.4535928143712575) internal successors, (3884), 2672 states have internal predecessors, (3884), 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) [2022-03-20 07:40:06,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2677 states to 2677 states and 3888 transitions. [2022-03-20 07:40:06,864 INFO L78 Accepts]: Start accepts. Automaton has 2677 states and 3888 transitions. Word has length 172 [2022-03-20 07:40:06,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:40:06,865 INFO L478 AbstractCegarLoop]: Abstraction has 2677 states and 3888 transitions. [2022-03-20 07:40:06,865 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.5) internal successors, (142), 3 states have internal predecessors, (142), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:40:06,865 INFO L276 IsEmpty]: Start isEmpty. Operand 2677 states and 3888 transitions. [2022-03-20 07:40:06,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2022-03-20 07:40:06,867 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:40:06,867 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:40:06,867 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-03-20 07:40:06,868 INFO L403 AbstractCegarLoop]: === Iteration 49 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:40:06,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:40:06,868 INFO L85 PathProgramCache]: Analyzing trace with hash -516462024, now seen corresponding path program 1 times [2022-03-20 07:40:06,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:40:06,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749299032] [2022-03-20 07:40:06,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:40:06,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:40:06,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:40:06,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:40:06,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:40:07,001 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 159 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2022-03-20 07:40:07,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:40:07,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749299032] [2022-03-20 07:40:07,001 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749299032] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:40:07,001 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:40:07,002 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:40:07,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461602626] [2022-03-20 07:40:07,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:40:07,002 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:40:07,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:40:07,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:40:07,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:40:07,003 INFO L87 Difference]: Start difference. First operand 2677 states and 3888 transitions. Second operand has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:40:08,443 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:40:10,464 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:40:12,490 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:40:13,987 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:40:14,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:40:14,386 INFO L93 Difference]: Finished difference Result 2831 states and 4094 transitions. [2022-03-20 07:40:14,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:40:14,386 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 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 180 [2022-03-20 07:40:14,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:40:14,389 INFO L225 Difference]: With dead ends: 2831 [2022-03-20 07:40:14,389 INFO L226 Difference]: Without dead ends: 2831 [2022-03-20 07:40:14,389 INFO L912 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 [2022-03-20 07:40:14,389 INFO L913 BasicCegarLoop]: 244 mSDtfsCounter, 41 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 602 SdHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-03-20 07:40:14,390 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [41 Valid, 602 Invalid, 490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 483 Invalid, 2 Unknown, 0 Unchecked, 7.4s Time] [2022-03-20 07:40:14,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2831 states. [2022-03-20 07:40:14,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2831 to 2677. [2022-03-20 07:40:14,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2677 states, 2672 states have (on average 1.4509730538922156) internal successors, (3877), 2672 states have internal predecessors, (3877), 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) [2022-03-20 07:40:14,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2677 states to 2677 states and 3881 transitions. [2022-03-20 07:40:14,411 INFO L78 Accepts]: Start accepts. Automaton has 2677 states and 3881 transitions. Word has length 180 [2022-03-20 07:40:14,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:40:14,411 INFO L478 AbstractCegarLoop]: Abstraction has 2677 states and 3881 transitions. [2022-03-20 07:40:14,411 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:40:14,411 INFO L276 IsEmpty]: Start isEmpty. Operand 2677 states and 3881 transitions. [2022-03-20 07:40:14,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2022-03-20 07:40:14,414 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:40:14,415 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:40:14,415 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-03-20 07:40:14,415 INFO L403 AbstractCegarLoop]: === Iteration 50 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:40:14,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:40:14,415 INFO L85 PathProgramCache]: Analyzing trace with hash 664470330, now seen corresponding path program 1 times [2022-03-20 07:40:14,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:40:14,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286000721] [2022-03-20 07:40:14,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:40:14,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:40:14,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:40:14,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:40:14,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:40:14,545 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 243 proven. 0 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2022-03-20 07:40:14,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:40:14,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286000721] [2022-03-20 07:40:14,546 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286000721] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:40:14,546 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:40:14,546 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:40:14,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236648466] [2022-03-20 07:40:14,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:40:14,547 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:40:14,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:40:14,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:40:14,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:40:14,547 INFO L87 Difference]: Start difference. First operand 2677 states and 3881 transitions. Second operand has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:40:16,835 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:40:18,860 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:40:20,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:40:20,114 INFO L93 Difference]: Finished difference Result 3144 states and 4500 transitions. [2022-03-20 07:40:20,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:40:20,114 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 1 states have call successors, (3), 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 202 [2022-03-20 07:40:20,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:40:20,117 INFO L225 Difference]: With dead ends: 3144 [2022-03-20 07:40:20,117 INFO L226 Difference]: Without dead ends: 3144 [2022-03-20 07:40:20,117 INFO L912 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 [2022-03-20 07:40:20,117 INFO L913 BasicCegarLoop]: 136 mSDtfsCounter, 123 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 470 mSolverCounterSat, 52 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 470 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-03-20 07:40:20,117 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 380 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 470 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2022-03-20 07:40:20,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3144 states. [2022-03-20 07:40:20,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3144 to 2677. [2022-03-20 07:40:20,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2677 states, 2672 states have (on average 1.4431137724550898) internal successors, (3856), 2672 states have internal predecessors, (3856), 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) [2022-03-20 07:40:20,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2677 states to 2677 states and 3860 transitions. [2022-03-20 07:40:20,136 INFO L78 Accepts]: Start accepts. Automaton has 2677 states and 3860 transitions. Word has length 202 [2022-03-20 07:40:20,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:40:20,137 INFO L478 AbstractCegarLoop]: Abstraction has 2677 states and 3860 transitions. [2022-03-20 07:40:20,137 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:40:20,137 INFO L276 IsEmpty]: Start isEmpty. Operand 2677 states and 3860 transitions. [2022-03-20 07:40:20,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2022-03-20 07:40:20,139 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:40:20,140 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:40:20,140 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-03-20 07:40:20,140 INFO L403 AbstractCegarLoop]: === Iteration 51 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:40:20,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:40:20,140 INFO L85 PathProgramCache]: Analyzing trace with hash 1023181626, now seen corresponding path program 1 times [2022-03-20 07:40:20,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:40:20,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884295230] [2022-03-20 07:40:20,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:40:20,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:40:20,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:40:20,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:40:20,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:40:20,288 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 237 proven. 0 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2022-03-20 07:40:20,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:40:20,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884295230] [2022-03-20 07:40:20,288 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884295230] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:40:20,288 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:40:20,288 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:40:20,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849602435] [2022-03-20 07:40:20,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:40:20,288 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:40:20,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:40:20,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:40:20,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:40:20,289 INFO L87 Difference]: Start difference. First operand 2677 states and 3860 transitions. Second operand has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:40:21,513 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:40:23,583 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:40:24,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:40:24,568 INFO L93 Difference]: Finished difference Result 3144 states and 4459 transitions. [2022-03-20 07:40:24,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:40:24,569 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 1 states have call successors, (3), 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 202 [2022-03-20 07:40:24,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:40:24,571 INFO L225 Difference]: With dead ends: 3144 [2022-03-20 07:40:24,571 INFO L226 Difference]: Without dead ends: 3144 [2022-03-20 07:40:24,571 INFO L912 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 [2022-03-20 07:40:24,572 INFO L913 BasicCegarLoop]: 154 mSDtfsCounter, 125 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 415 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-03-20 07:40:24,572 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 415 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 488 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-03-20 07:40:24,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3144 states. [2022-03-20 07:40:24,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3144 to 2677. [2022-03-20 07:40:24,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2677 states, 2672 states have (on average 1.4277694610778444) internal successors, (3815), 2672 states have internal predecessors, (3815), 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) [2022-03-20 07:40:24,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2677 states to 2677 states and 3819 transitions. [2022-03-20 07:40:24,590 INFO L78 Accepts]: Start accepts. Automaton has 2677 states and 3819 transitions. Word has length 202 [2022-03-20 07:40:24,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:40:24,590 INFO L478 AbstractCegarLoop]: Abstraction has 2677 states and 3819 transitions. [2022-03-20 07:40:24,590 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:40:24,591 INFO L276 IsEmpty]: Start isEmpty. Operand 2677 states and 3819 transitions. [2022-03-20 07:40:24,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2022-03-20 07:40:24,593 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:40:24,593 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:40:24,593 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-03-20 07:40:24,593 INFO L403 AbstractCegarLoop]: === Iteration 52 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:40:24,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:40:24,594 INFO L85 PathProgramCache]: Analyzing trace with hash -770439321, now seen corresponding path program 1 times [2022-03-20 07:40:24,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:40:24,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70543875] [2022-03-20 07:40:24,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:40:24,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:40:24,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:40:24,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:40:24,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:40:24,707 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 241 proven. 0 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2022-03-20 07:40:24,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:40:24,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70543875] [2022-03-20 07:40:24,707 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [70543875] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:40:24,707 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:40:24,707 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:40:24,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756774403] [2022-03-20 07:40:24,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:40:24,708 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:40:24,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:40:24,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:40:24,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:40:24,709 INFO L87 Difference]: Start difference. First operand 2677 states and 3819 transitions. Second operand has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:40:26,573 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:40:28,598 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:40:30,623 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 [] [2022-03-20 07:40:31,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:40:31,324 INFO L93 Difference]: Finished difference Result 2803 states and 3989 transitions. [2022-03-20 07:40:31,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:40:31,324 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 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 203 [2022-03-20 07:40:31,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:40:31,326 INFO L225 Difference]: With dead ends: 2803 [2022-03-20 07:40:31,326 INFO L226 Difference]: Without dead ends: 2803 [2022-03-20 07:40:31,327 INFO L912 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 [2022-03-20 07:40:31,328 INFO L913 BasicCegarLoop]: 239 mSDtfsCounter, 39 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-03-20 07:40:31,329 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 591 Invalid, 472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 465 Invalid, 2 Unknown, 0 Unchecked, 6.6s Time] [2022-03-20 07:40:31,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2803 states. [2022-03-20 07:40:31,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2803 to 2677. [2022-03-20 07:40:31,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2677 states, 2672 states have (on average 1.4251497005988023) internal successors, (3808), 2672 states have internal predecessors, (3808), 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) [2022-03-20 07:40:31,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2677 states to 2677 states and 3812 transitions. [2022-03-20 07:40:31,347 INFO L78 Accepts]: Start accepts. Automaton has 2677 states and 3812 transitions. Word has length 203 [2022-03-20 07:40:31,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:40:31,347 INFO L478 AbstractCegarLoop]: Abstraction has 2677 states and 3812 transitions. [2022-03-20 07:40:31,348 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:40:31,348 INFO L276 IsEmpty]: Start isEmpty. Operand 2677 states and 3812 transitions. [2022-03-20 07:40:31,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2022-03-20 07:40:31,351 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:40:31,351 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:40:31,351 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-03-20 07:40:31,351 INFO L403 AbstractCegarLoop]: === Iteration 53 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:40:31,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:40:31,351 INFO L85 PathProgramCache]: Analyzing trace with hash 926528038, now seen corresponding path program 1 times [2022-03-20 07:40:31,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:40:31,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932764661] [2022-03-20 07:40:31,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:40:31,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:40:31,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:40:31,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:40:31,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:40:31,459 INFO L134 CoverageAnalysis]: Checked inductivity of 356 backedges. 246 proven. 0 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2022-03-20 07:40:31,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:40:31,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932764661] [2022-03-20 07:40:31,459 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932764661] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:40:31,459 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:40:31,459 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:40:31,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826766966] [2022-03-20 07:40:31,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:40:31,460 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:40:31,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:40:31,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:40:31,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:40:31,461 INFO L87 Difference]: Start difference. First operand 2677 states and 3812 transitions. Second operand has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:40:33,136 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:40:34,269 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 [] [2022-03-20 07:40:35,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:40:35,167 INFO L93 Difference]: Finished difference Result 3144 states and 4424 transitions. [2022-03-20 07:40:35,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:40:35,167 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 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 203 [2022-03-20 07:40:35,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:40:35,169 INFO L225 Difference]: With dead ends: 3144 [2022-03-20 07:40:35,169 INFO L226 Difference]: Without dead ends: 3144 [2022-03-20 07:40:35,170 INFO L912 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 [2022-03-20 07:40:35,170 INFO L913 BasicCegarLoop]: 130 mSDtfsCounter, 122 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-03-20 07:40:35,170 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [122 Valid, 368 Invalid, 518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 463 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-03-20 07:40:35,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3144 states. [2022-03-20 07:40:35,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3144 to 2677. [2022-03-20 07:40:35,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2677 states, 2672 states have (on average 1.4146706586826348) internal successors, (3780), 2672 states have internal predecessors, (3780), 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) [2022-03-20 07:40:35,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2677 states to 2677 states and 3784 transitions. [2022-03-20 07:40:35,190 INFO L78 Accepts]: Start accepts. Automaton has 2677 states and 3784 transitions. Word has length 203 [2022-03-20 07:40:35,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:40:35,190 INFO L478 AbstractCegarLoop]: Abstraction has 2677 states and 3784 transitions. [2022-03-20 07:40:35,190 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:40:35,190 INFO L276 IsEmpty]: Start isEmpty. Operand 2677 states and 3784 transitions. [2022-03-20 07:40:35,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2022-03-20 07:40:35,193 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:40:35,193 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:40:35,193 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-03-20 07:40:35,193 INFO L403 AbstractCegarLoop]: === Iteration 54 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:40:35,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:40:35,193 INFO L85 PathProgramCache]: Analyzing trace with hash -806903239, now seen corresponding path program 1 times [2022-03-20 07:40:35,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:40:35,193 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538219571] [2022-03-20 07:40:35,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:40:35,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:40:35,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:40:35,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:40:35,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:40:35,310 INFO L134 CoverageAnalysis]: Checked inductivity of 362 backedges. 208 proven. 0 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2022-03-20 07:40:35,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:40:35,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538219571] [2022-03-20 07:40:35,311 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538219571] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:40:35,311 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:40:35,311 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:40:35,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631748278] [2022-03-20 07:40:35,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:40:35,311 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:40:35,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:40:35,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:40:35,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:40:35,312 INFO L87 Difference]: Start difference. First operand 2677 states and 3784 transitions. Second operand has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:40:36,446 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 [] [2022-03-20 07:40:38,461 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:40:40,223 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:40:40,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:40:40,607 INFO L93 Difference]: Finished difference Result 3021 states and 4263 transitions. [2022-03-20 07:40:40,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:40:40,607 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 205 [2022-03-20 07:40:40,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:40:40,610 INFO L225 Difference]: With dead ends: 3021 [2022-03-20 07:40:40,610 INFO L226 Difference]: Without dead ends: 3021 [2022-03-20 07:40:40,610 INFO L912 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 [2022-03-20 07:40:40,610 INFO L913 BasicCegarLoop]: 239 mSDtfsCounter, 34 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-03-20 07:40:40,611 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 591 Invalid, 486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 478 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2022-03-20 07:40:40,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3021 states. [2022-03-20 07:40:40,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3021 to 2887. [2022-03-20 07:40:40,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2887 states, 2882 states have (on average 1.4136016655100625) internal successors, (4074), 2882 states have internal predecessors, (4074), 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) [2022-03-20 07:40:40,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2887 states to 2887 states and 4078 transitions. [2022-03-20 07:40:40,630 INFO L78 Accepts]: Start accepts. Automaton has 2887 states and 4078 transitions. Word has length 205 [2022-03-20 07:40:40,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:40:40,631 INFO L478 AbstractCegarLoop]: Abstraction has 2887 states and 4078 transitions. [2022-03-20 07:40:40,631 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:40:40,631 INFO L276 IsEmpty]: Start isEmpty. Operand 2887 states and 4078 transitions. [2022-03-20 07:40:40,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2022-03-20 07:40:40,646 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:40:40,646 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:40:40,646 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-03-20 07:40:40,646 INFO L403 AbstractCegarLoop]: === Iteration 55 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:40:40,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:40:40,647 INFO L85 PathProgramCache]: Analyzing trace with hash -737010179, now seen corresponding path program 1 times [2022-03-20 07:40:40,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:40:40,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137551651] [2022-03-20 07:40:40,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:40:40,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:40:40,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:40:40,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:40:40,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:40:40,871 INFO L134 CoverageAnalysis]: Checked inductivity of 367 backedges. 213 proven. 0 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2022-03-20 07:40:40,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:40:40,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137551651] [2022-03-20 07:40:40,871 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137551651] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:40:40,871 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:40:40,871 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-20 07:40:40,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293551381] [2022-03-20 07:40:40,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:40:40,872 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-20 07:40:40,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:40:40,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-20 07:40:40,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-03-20 07:40:40,872 INFO L87 Difference]: Start difference. First operand 2887 states and 4078 transitions. Second operand has 7 states, 7 states have (on average 20.428571428571427) internal successors, (143), 6 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:40:44,271 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 [] [2022-03-20 07:40:45,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:40:45,547 INFO L93 Difference]: Finished difference Result 3372 states and 4729 transitions. [2022-03-20 07:40:45,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:40:45,547 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.428571428571427) internal successors, (143), 6 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 211 [2022-03-20 07:40:45,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:40:45,550 INFO L225 Difference]: With dead ends: 3372 [2022-03-20 07:40:45,550 INFO L226 Difference]: Without dead ends: 3372 [2022-03-20 07:40:45,550 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-03-20 07:40:45,550 INFO L913 BasicCegarLoop]: 131 mSDtfsCounter, 275 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 537 mSolverCounterSat, 110 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 648 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 537 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-03-20 07:40:45,550 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [275 Valid, 477 Invalid, 648 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 537 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2022-03-20 07:40:45,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3372 states. [2022-03-20 07:40:45,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3372 to 2940. [2022-03-20 07:40:45,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2940 states, 2935 states have (on average 1.415672913117547) internal successors, (4155), 2935 states have internal predecessors, (4155), 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) [2022-03-20 07:40:45,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2940 states to 2940 states and 4159 transitions. [2022-03-20 07:40:45,571 INFO L78 Accepts]: Start accepts. Automaton has 2940 states and 4159 transitions. Word has length 211 [2022-03-20 07:40:45,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:40:45,571 INFO L478 AbstractCegarLoop]: Abstraction has 2940 states and 4159 transitions. [2022-03-20 07:40:45,571 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.428571428571427) internal successors, (143), 6 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:40:45,571 INFO L276 IsEmpty]: Start isEmpty. Operand 2940 states and 4159 transitions. [2022-03-20 07:40:45,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2022-03-20 07:40:45,593 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:40:45,594 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:40:45,594 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-03-20 07:40:45,594 INFO L403 AbstractCegarLoop]: === Iteration 56 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:40:45,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:40:45,594 INFO L85 PathProgramCache]: Analyzing trace with hash 65109109, now seen corresponding path program 1 times [2022-03-20 07:40:45,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:40:45,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175120368] [2022-03-20 07:40:45,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:40:45,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:40:45,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:40:45,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:40:45,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:40:45,777 INFO L134 CoverageAnalysis]: Checked inductivity of 367 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2022-03-20 07:40:45,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:40:45,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175120368] [2022-03-20 07:40:45,778 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175120368] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:40:45,778 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:40:45,778 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 07:40:45,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232696846] [2022-03-20 07:40:45,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:40:45,778 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-20 07:40:45,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:40:45,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-20 07:40:45,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:40:45,779 INFO L87 Difference]: Start difference. First operand 2940 states and 4159 transitions. Second operand has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:40:47,743 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:40:49,771 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:40:51,792 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:40:54,463 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 [] [2022-03-20 07:40:55,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:40:55,009 INFO L93 Difference]: Finished difference Result 4002 states and 5583 transitions. [2022-03-20 07:40:55,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-20 07:40:55,009 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 212 [2022-03-20 07:40:55,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:40:55,013 INFO L225 Difference]: With dead ends: 4002 [2022-03-20 07:40:55,013 INFO L226 Difference]: Without dead ends: 4002 [2022-03-20 07:40:55,013 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-03-20 07:40:55,014 INFO L913 BasicCegarLoop]: 261 mSDtfsCounter, 154 mSDsluCounter, 536 mSDsCounter, 0 mSdLazyCounter, 715 mSolverCounterSat, 18 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 797 SdHoareTripleChecker+Invalid, 736 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 715 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time [2022-03-20 07:40:55,014 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [154 Valid, 797 Invalid, 736 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 715 Invalid, 3 Unknown, 0 Unchecked, 9.2s Time] [2022-03-20 07:40:55,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4002 states. [2022-03-20 07:40:55,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4002 to 3143. [2022-03-20 07:40:55,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3143 states, 3138 states have (on average 1.4133205863607394) internal successors, (4435), 3138 states have internal predecessors, (4435), 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) [2022-03-20 07:40:55,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3143 states to 3143 states and 4439 transitions. [2022-03-20 07:40:55,056 INFO L78 Accepts]: Start accepts. Automaton has 3143 states and 4439 transitions. Word has length 212 [2022-03-20 07:40:55,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:40:55,057 INFO L478 AbstractCegarLoop]: Abstraction has 3143 states and 4439 transitions. [2022-03-20 07:40:55,057 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:40:55,057 INFO L276 IsEmpty]: Start isEmpty. Operand 3143 states and 4439 transitions. [2022-03-20 07:40:55,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2022-03-20 07:40:55,060 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:40:55,060 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:40:55,060 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-03-20 07:40:55,061 INFO L403 AbstractCegarLoop]: === Iteration 57 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:40:55,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:40:55,061 INFO L85 PathProgramCache]: Analyzing trace with hash -960382890, now seen corresponding path program 1 times [2022-03-20 07:40:55,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:40:55,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641280411] [2022-03-20 07:40:55,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:40:55,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:40:55,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:40:55,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:40:55,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:40:55,266 INFO L134 CoverageAnalysis]: Checked inductivity of 367 backedges. 213 proven. 0 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2022-03-20 07:40:55,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:40:55,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641280411] [2022-03-20 07:40:55,267 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [641280411] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:40:55,267 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:40:55,267 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 07:40:55,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169941796] [2022-03-20 07:40:55,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:40:55,267 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-20 07:40:55,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:40:55,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-20 07:40:55,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:40:55,268 INFO L87 Difference]: Start difference. First operand 3143 states and 4439 transitions. Second operand has 6 states, 6 states have (on average 24.0) internal successors, (144), 5 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:40:56,325 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:40:59,037 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:41:01,061 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:41:01,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:41:01,515 INFO L93 Difference]: Finished difference Result 3588 states and 5033 transitions. [2022-03-20 07:41:01,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:41:01,515 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 24.0) internal successors, (144), 5 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 212 [2022-03-20 07:41:01,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:41:01,519 INFO L225 Difference]: With dead ends: 3588 [2022-03-20 07:41:01,519 INFO L226 Difference]: Without dead ends: 3574 [2022-03-20 07:41:01,520 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-03-20 07:41:01,520 INFO L913 BasicCegarLoop]: 138 mSDtfsCounter, 243 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 470 mSolverCounterSat, 106 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 243 SdHoareTripleChecker+Valid, 383 SdHoareTripleChecker+Invalid, 578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 470 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-03-20 07:41:01,520 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [243 Valid, 383 Invalid, 578 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 470 Invalid, 2 Unknown, 0 Unchecked, 6.2s Time] [2022-03-20 07:41:01,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3574 states. [2022-03-20 07:41:01,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3574 to 3154. [2022-03-20 07:41:01,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3154 states, 3149 states have (on average 1.4134645919339472) internal successors, (4451), 3149 states have internal predecessors, (4451), 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) [2022-03-20 07:41:01,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3154 states to 3154 states and 4455 transitions. [2022-03-20 07:41:01,545 INFO L78 Accepts]: Start accepts. Automaton has 3154 states and 4455 transitions. Word has length 212 [2022-03-20 07:41:01,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:41:01,545 INFO L478 AbstractCegarLoop]: Abstraction has 3154 states and 4455 transitions. [2022-03-20 07:41:01,545 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.0) internal successors, (144), 5 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:41:01,545 INFO L276 IsEmpty]: Start isEmpty. Operand 3154 states and 4455 transitions. [2022-03-20 07:41:01,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2022-03-20 07:41:01,548 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:41:01,548 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:41:01,548 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-03-20 07:41:01,548 INFO L403 AbstractCegarLoop]: === Iteration 58 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:41:01,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:41:01,549 INFO L85 PathProgramCache]: Analyzing trace with hash 2000111424, now seen corresponding path program 1 times [2022-03-20 07:41:01,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:41:01,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180441422] [2022-03-20 07:41:01,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:41:01,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:41:01,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:41:01,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:41:01,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:41:01,807 INFO L134 CoverageAnalysis]: Checked inductivity of 509 backedges. 145 proven. 5 refuted. 0 times theorem prover too weak. 359 trivial. 0 not checked. [2022-03-20 07:41:01,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:41:01,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180441422] [2022-03-20 07:41:01,807 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180441422] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 07:41:01,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [168842898] [2022-03-20 07:41:01,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:41:01,807 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 07:41:01,808 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 07:41:01,809 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) [2022-03-20 07:41:01,847 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-20 07:41:02,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:41:02,827 INFO L263 TraceCheckSpWp]: Trace formula consists of 1447 conjuncts, 29 conjunts are in the unsatisfiable core [2022-03-20 07:41:02,841 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 07:41:02,915 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-20 07:41:02,915 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-20 07:41:02,960 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-20 07:41:02,960 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-03-20 07:41:03,134 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-03-20 07:41:03,189 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-03-20 07:41:03,217 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2022-03-20 07:41:03,220 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2022-03-20 07:41:03,238 INFO L356 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2022-03-20 07:41:03,238 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 32 [2022-03-20 07:41:03,311 INFO L356 Elim1Store]: treesize reduction 66, result has 30.5 percent of original size [2022-03-20 07:41:03,312 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 54 [2022-03-20 07:41:03,428 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 11 [2022-03-20 07:41:03,447 INFO L134 CoverageAnalysis]: Checked inductivity of 509 backedges. 140 proven. 101 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2022-03-20 07:41:03,448 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 07:41:03,507 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 26 [2022-03-20 07:41:03,521 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 20 [2022-03-20 07:41:05,526 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_arrayElimCell_10 Int) (v_arrayElimCell_11 Int)) (not (= 8545 (select (select (store |c_#memory_int| v_arrayElimCell_10 (store (select |c_#memory_int| v_arrayElimCell_10) (+ 844 v_arrayElimCell_11) 8640)) c_ssl3_accept_~s.base) (+ 52 c_ssl3_accept_~s.offset))))) is different from false [2022-03-20 07:41:05,741 INFO L134 CoverageAnalysis]: Checked inductivity of 509 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2022-03-20 07:41:05,741 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [168842898] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-20 07:41:05,741 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-20 07:41:05,742 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 10] total 14 [2022-03-20 07:41:05,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955524723] [2022-03-20 07:41:05,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:41:05,743 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:41:05,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:41:05,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:41:05,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=124, Unknown=1, NotChecked=22, Total=182 [2022-03-20 07:41:05,743 INFO L87 Difference]: Start difference. First operand 3154 states and 4455 transitions. Second operand has 5 states, 5 states have (on average 24.8) internal successors, (124), 5 states have internal predecessors, (124), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:41:08,786 WARN L833 $PredicateComparison]: unable to prove that (and (not (= 8545 (select (select |c_#memory_int| c_ssl3_accept_~s.base) (+ 52 c_ssl3_accept_~s.offset)))) (forall ((v_arrayElimCell_10 Int) (v_arrayElimCell_11 Int)) (not (= 8545 (select (select (store |c_#memory_int| v_arrayElimCell_10 (store (select |c_#memory_int| v_arrayElimCell_10) (+ 844 v_arrayElimCell_11) 8640)) c_ssl3_accept_~s.base) (+ 52 c_ssl3_accept_~s.offset)))))) is different from false [2022-03-20 07:41:08,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:41:08,799 INFO L93 Difference]: Finished difference Result 3826 states and 5358 transitions. [2022-03-20 07:41:08,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:41:08,800 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 5 states have internal predecessors, (124), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 240 [2022-03-20 07:41:08,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:41:08,805 INFO L225 Difference]: With dead ends: 3826 [2022-03-20 07:41:08,805 INFO L226 Difference]: Without dead ends: 3826 [2022-03-20 07:41:08,805 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 494 GetRequests, 480 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=42, Invalid=146, Unknown=2, NotChecked=50, Total=240 [2022-03-20 07:41:08,806 INFO L913 BasicCegarLoop]: 144 mSDtfsCounter, 115 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 501 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 263 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-03-20 07:41:08,806 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 501 Invalid, 552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 238 Invalid, 0 Unknown, 263 Unchecked, 1.0s Time] [2022-03-20 07:41:08,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3826 states. [2022-03-20 07:41:08,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3826 to 2951. [2022-03-20 07:41:08,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2951 states, 2946 states have (on average 1.4086897488119483) internal successors, (4150), 2946 states have internal predecessors, (4150), 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) [2022-03-20 07:41:08,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2951 states to 2951 states and 4154 transitions. [2022-03-20 07:41:08,837 INFO L78 Accepts]: Start accepts. Automaton has 2951 states and 4154 transitions. Word has length 240 [2022-03-20 07:41:08,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:41:08,837 INFO L478 AbstractCegarLoop]: Abstraction has 2951 states and 4154 transitions. [2022-03-20 07:41:08,837 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 5 states have internal predecessors, (124), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:41:08,838 INFO L276 IsEmpty]: Start isEmpty. Operand 2951 states and 4154 transitions. [2022-03-20 07:41:08,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2022-03-20 07:41:08,841 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:41:08,841 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 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] [2022-03-20 07:41:08,865 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-03-20 07:41:09,041 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable57 [2022-03-20 07:41:09,042 INFO L403 AbstractCegarLoop]: === Iteration 59 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:41:09,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:41:09,042 INFO L85 PathProgramCache]: Analyzing trace with hash 837080913, now seen corresponding path program 1 times [2022-03-20 07:41:09,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:41:09,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655584545] [2022-03-20 07:41:09,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:41:09,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:41:09,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:41:09,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:41:09,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:41:09,450 INFO L134 CoverageAnalysis]: Checked inductivity of 476 backedges. 228 proven. 182 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-03-20 07:41:09,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:41:09,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655584545] [2022-03-20 07:41:09,450 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655584545] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 07:41:09,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [318279209] [2022-03-20 07:41:09,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:41:09,451 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 07:41:09,451 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 07:41:09,452 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 07:41:09,453 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-20 07:41:10,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:41:10,413 INFO L263 TraceCheckSpWp]: Trace formula consists of 1380 conjuncts, 42 conjunts are in the unsatisfiable core [2022-03-20 07:41:10,422 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 07:41:10,463 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-20 07:41:10,464 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-20 07:41:10,517 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-20 07:41:10,517 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-03-20 07:41:10,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:41:10,727 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 34 [2022-03-20 07:41:10,771 INFO L356 Elim1Store]: treesize reduction 50, result has 58.3 percent of original size [2022-03-20 07:41:10,772 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 44 treesize of output 85 [2022-03-20 07:41:10,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:41:10,781 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 70 [2022-03-20 07:41:11,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:41:11,790 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 93 treesize of output 80 [2022-03-20 07:41:11,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:41:11,798 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 93 treesize of output 80 [2022-03-20 07:41:11,810 INFO L356 Elim1Store]: treesize reduction 99, result has 17.5 percent of original size [2022-03-20 07:41:11,810 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 102 treesize of output 65 [2022-03-20 07:41:11,858 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 35 [2022-03-20 07:41:11,860 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 23 [2022-03-20 07:41:11,877 INFO L356 Elim1Store]: treesize reduction 39, result has 35.0 percent of original size [2022-03-20 07:41:11,877 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 32 treesize of output 36 [2022-03-20 07:41:11,893 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-20 07:41:11,893 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2022-03-20 07:41:11,976 INFO L134 CoverageAnalysis]: Checked inductivity of 476 backedges. 244 proven. 108 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2022-03-20 07:41:11,976 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 07:41:12,530 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 62 [2022-03-20 07:41:12,533 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 50 [2022-03-20 07:41:14,547 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_arrayElimCell_28 Int) (v_arrayElimCell_27 Int) (v_ArrVal_16335 Int)) (let ((.cse1 (+ 844 v_arrayElimCell_28))) (or (not (= 8640 (let ((.cse2 (+ 52 c_ssl3_accept_~s.offset))) (select (select (let ((.cse0 (store |c_#memory_int| c_ssl3_accept_~s.base (store (select |c_#memory_int| c_ssl3_accept_~s.base) .cse2 8448)))) (store .cse0 v_arrayElimCell_27 (store (select .cse0 v_arrayElimCell_27) .cse1 v_ArrVal_16335))) c_ssl3_accept_~s.base) .cse2)))) (< (select (select |c_#memory_int| v_arrayElimCell_27) .cse1) 8672)))) is different from false [2022-03-20 07:41:14,615 INFO L356 Elim1Store]: treesize reduction 14, result has 6.7 percent of original size [2022-03-20 07:41:14,615 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 1 [2022-03-20 07:41:14,750 INFO L134 CoverageAnalysis]: Checked inductivity of 476 backedges. 257 proven. 36 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2022-03-20 07:41:14,750 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [318279209] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-20 07:41:14,750 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-20 07:41:14,750 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 28 [2022-03-20 07:41:14,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877334483] [2022-03-20 07:41:14,750 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-20 07:41:14,751 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-20 07:41:14,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:41:14,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-20 07:41:14,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=603, Unknown=1, NotChecked=50, Total=756 [2022-03-20 07:41:14,752 INFO L87 Difference]: Start difference. First operand 2951 states and 4154 transitions. Second operand has 28 states, 28 states have (on average 12.321428571428571) internal successors, (345), 27 states have internal predecessors, (345), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:41:16,040 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:41:18,411 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:41:20,435 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:41:21,616 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:41:23,051 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:41:25,001 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:41:26,162 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:41:29,652 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse3 (select |c_#memory_int| c_ssl3_accept_~s.base))) (and (forall ((v_arrayElimCell_28 Int) (v_arrayElimCell_27 Int) (v_ArrVal_16335 Int)) (let ((.cse1 (+ 844 v_arrayElimCell_28))) (or (not (= 8640 (let ((.cse2 (+ 52 c_ssl3_accept_~s.offset))) (select (select (let ((.cse0 (store |c_#memory_int| c_ssl3_accept_~s.base (store (select |c_#memory_int| c_ssl3_accept_~s.base) .cse2 8448)))) (store .cse0 v_arrayElimCell_27 (store (select .cse0 v_arrayElimCell_27) .cse1 v_ArrVal_16335))) c_ssl3_accept_~s.base) .cse2)))) (< (select (select |c_#memory_int| v_arrayElimCell_27) .cse1) 8672)))) (not (= (select .cse3 (+ 92 c_ssl3_accept_~s.offset)) 0)) (= (select .cse3 (+ 64 c_ssl3_accept_~s.offset)) 0) (<= (select .cse3 (+ 52 c_ssl3_accept_~s.offset)) 8448))) is different from false [2022-03-20 07:41:31,719 WARN L833 $PredicateComparison]: unable to prove that (and (forall ((v_arrayElimCell_28 Int) (v_arrayElimCell_27 Int) (v_ArrVal_16335 Int)) (let ((.cse1 (+ 844 v_arrayElimCell_28))) (or (not (= 8640 (let ((.cse2 (+ 52 c_ssl3_accept_~s.offset))) (select (select (let ((.cse0 (store |c_#memory_int| c_ssl3_accept_~s.base (store (select |c_#memory_int| c_ssl3_accept_~s.base) .cse2 8448)))) (store .cse0 v_arrayElimCell_27 (store (select .cse0 v_arrayElimCell_27) .cse1 v_ArrVal_16335))) c_ssl3_accept_~s.base) .cse2)))) (< (select (select |c_#memory_int| v_arrayElimCell_27) .cse1) 8672)))) (<= (select (select |c_#memory_int| c_ssl3_accept_~s.base) (+ 52 c_ssl3_accept_~s.offset)) 8448)) is different from false [2022-03-20 07:42:42,862 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse11 (select |c_#memory_int| c_ssl3_accept_~s.base)) (.cse8 (+ 92 c_ssl3_accept_~s.offset))) (let ((.cse9 (+ 84 c_ssl3_accept_~s.offset)) (.cse10 (select .cse11 .cse8))) (let ((.cse3 (= .cse10 0)) (.cse2 (select (select |c_#memory_$Pointer$.offset| c_ssl3_accept_~s.base) .cse9))) (and (forall ((v_ArrVal_16335 Int)) (not (= (select (select (let ((.cse1 (+ 84 c_ssl3_accept_~s.offset))) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| c_ssl3_accept_~s.base) .cse1))) (store |c_#memory_int| .cse0 (store (select |c_#memory_int| .cse0) (+ 844 (select (select |c_#memory_$Pointer$.offset| c_ssl3_accept_~s.base) .cse1)) v_ArrVal_16335)))) c_ssl3_accept_~s.base) (+ 52 c_ssl3_accept_~s.offset)) 8640))) (or (<= c_ssl3_accept_~s.offset (+ 752 .cse2)) .cse3) (forall ((v_arrayElimCell_28 Int) (v_arrayElimCell_27 Int) (v_ArrVal_16335 Int)) (let ((.cse5 (+ 844 v_arrayElimCell_28))) (or (not (= 8640 (let ((.cse6 (+ 52 c_ssl3_accept_~s.offset))) (select (select (let ((.cse4 (store |c_#memory_int| c_ssl3_accept_~s.base (store (select |c_#memory_int| c_ssl3_accept_~s.base) .cse6 8448)))) (store .cse4 v_arrayElimCell_27 (store (select .cse4 v_arrayElimCell_27) .cse5 v_ArrVal_16335))) c_ssl3_accept_~s.base) .cse6)))) (< (select (select |c_#memory_int| v_arrayElimCell_27) .cse5) 8672)))) (not .cse3) (or (not (= |c_ssl3_accept_#t~mem145| 0)) (let ((.cse7 (= .cse10 |c_ssl3_accept_#t~mem145|))) (and (or .cse7 (= .cse8 (+ 844 .cse2))) (or (= (select (select |c_#memory_$Pointer$.base| c_ssl3_accept_~s.base) .cse9) c_ssl3_accept_~s.base) .cse7)))) (= (select .cse11 (+ 64 c_ssl3_accept_~s.offset)) 0) (<= (select .cse11 (+ 52 c_ssl3_accept_~s.offset)) 8448))))) is different from false [2022-03-20 07:42:46,231 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse3 (select |c_#memory_int| c_ssl3_accept_~s.base))) (and (forall ((v_arrayElimCell_28 Int) (v_arrayElimCell_27 Int) (v_ArrVal_16335 Int)) (let ((.cse1 (+ 844 v_arrayElimCell_28))) (or (not (= 8640 (let ((.cse2 (+ 52 c_ssl3_accept_~s.offset))) (select (select (let ((.cse0 (store |c_#memory_int| c_ssl3_accept_~s.base (store (select |c_#memory_int| c_ssl3_accept_~s.base) .cse2 8448)))) (store .cse0 v_arrayElimCell_27 (store (select .cse0 v_arrayElimCell_27) .cse1 v_ArrVal_16335))) c_ssl3_accept_~s.base) .cse2)))) (< (select (select |c_#memory_int| v_arrayElimCell_27) .cse1) 8672)))) (= (select .cse3 (+ 64 c_ssl3_accept_~s.offset)) 0) (<= (select .cse3 (+ 52 c_ssl3_accept_~s.offset)) 8448))) is different from false [2022-03-20 07:43:46,258 WARN L232 SmtUtils]: Spent 21.96s on a formula simplification. DAG size of input: 71 DAG size of output: 42 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-03-20 07:43:48,421 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse13 (select |c_#memory_int| c_ssl3_accept_~s.base)) (.cse10 (+ 92 c_ssl3_accept_~s.offset))) (let ((.cse11 (+ 84 c_ssl3_accept_~s.offset)) (.cse12 (select .cse13 .cse10))) (let ((.cse3 (= .cse12 0)) (.cse8 (= |c_ssl3_accept_#t~mem145| 0)) (.cse2 (select (select |c_#memory_$Pointer$.offset| c_ssl3_accept_~s.base) .cse11)) (.cse7 (select .cse13 (+ 52 c_ssl3_accept_~s.offset)))) (and (forall ((v_ArrVal_16335 Int)) (not (= (select (select (let ((.cse1 (+ 84 c_ssl3_accept_~s.offset))) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| c_ssl3_accept_~s.base) .cse1))) (store |c_#memory_int| .cse0 (store (select |c_#memory_int| .cse0) (+ 844 (select (select |c_#memory_$Pointer$.offset| c_ssl3_accept_~s.base) .cse1)) v_ArrVal_16335)))) c_ssl3_accept_~s.base) (+ 52 c_ssl3_accept_~s.offset)) 8640))) (or (<= c_ssl3_accept_~s.offset (+ 752 .cse2)) .cse3) (forall ((v_arrayElimCell_28 Int) (v_arrayElimCell_27 Int) (v_ArrVal_16335 Int)) (let ((.cse5 (+ 844 v_arrayElimCell_28))) (or (not (= 8640 (let ((.cse6 (+ 52 c_ssl3_accept_~s.offset))) (select (select (let ((.cse4 (store |c_#memory_int| c_ssl3_accept_~s.base (store (select |c_#memory_int| c_ssl3_accept_~s.base) .cse6 8448)))) (store .cse4 v_arrayElimCell_27 (store (select .cse4 v_arrayElimCell_27) .cse5 v_ArrVal_16335))) c_ssl3_accept_~s.base) .cse6)))) (< (select (select |c_#memory_int| v_arrayElimCell_27) .cse5) 8672)))) (or (and (not (= (+ 792 .cse2) c_ssl3_accept_~s.offset)) (= 8448 .cse7)) .cse8) (not .cse3) (or (not .cse8) (let ((.cse9 (= .cse12 |c_ssl3_accept_#t~mem145|))) (and (or .cse9 (= .cse10 (+ 844 .cse2))) (or (= (select (select |c_#memory_$Pointer$.base| c_ssl3_accept_~s.base) .cse11) c_ssl3_accept_~s.base) .cse9)))) (= (select .cse13 (+ 64 c_ssl3_accept_~s.offset)) 0) (<= .cse7 8448))))) is different from false [2022-03-20 07:48:13,375 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse3 (select |c_#memory_int| c_ssl3_accept_~s.base))) (and (forall ((v_arrayElimCell_28 Int) (v_arrayElimCell_27 Int) (v_ArrVal_16335 Int)) (let ((.cse1 (+ 844 v_arrayElimCell_28))) (or (not (= 8640 (let ((.cse2 (+ 52 c_ssl3_accept_~s.offset))) (select (select (let ((.cse0 (store |c_#memory_int| c_ssl3_accept_~s.base (store (select |c_#memory_int| c_ssl3_accept_~s.base) .cse2 8448)))) (store .cse0 v_arrayElimCell_27 (store (select .cse0 v_arrayElimCell_27) .cse1 v_ArrVal_16335))) c_ssl3_accept_~s.base) .cse2)))) (< (select (select |c_#memory_int| v_arrayElimCell_27) .cse1) 8672)))) (= 8448 (select .cse3 (+ 52 c_ssl3_accept_~s.offset))) (= (select .cse3 (+ 64 c_ssl3_accept_~s.offset)) 0))) is different from false [2022-03-20 07:48:15,453 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse6 (select |c_#memory_int| c_ssl3_accept_~s.base))) (let ((.cse2 (= (select .cse6 (+ 92 c_ssl3_accept_~s.offset)) 0))) (and (forall ((v_ArrVal_16335 Int)) (not (= (select (select (let ((.cse1 (+ 84 c_ssl3_accept_~s.offset))) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| c_ssl3_accept_~s.base) .cse1))) (store |c_#memory_int| .cse0 (store (select |c_#memory_int| .cse0) (+ 844 (select (select |c_#memory_$Pointer$.offset| c_ssl3_accept_~s.base) .cse1)) v_ArrVal_16335)))) c_ssl3_accept_~s.base) (+ 52 c_ssl3_accept_~s.offset)) 8640))) (or (<= c_ssl3_accept_~s.offset (+ 752 (select (select |c_#memory_$Pointer$.offset| c_ssl3_accept_~s.base) (+ 84 c_ssl3_accept_~s.offset)))) .cse2) (forall ((v_arrayElimCell_28 Int) (v_arrayElimCell_27 Int) (v_ArrVal_16335 Int)) (let ((.cse4 (+ 844 v_arrayElimCell_28))) (or (not (= 8640 (let ((.cse5 (+ 52 c_ssl3_accept_~s.offset))) (select (select (let ((.cse3 (store |c_#memory_int| c_ssl3_accept_~s.base (store (select |c_#memory_int| c_ssl3_accept_~s.base) .cse5 8448)))) (store .cse3 v_arrayElimCell_27 (store (select .cse3 v_arrayElimCell_27) .cse4 v_ArrVal_16335))) c_ssl3_accept_~s.base) .cse5)))) (< (select (select |c_#memory_int| v_arrayElimCell_27) .cse4) 8672)))) (not .cse2) (= (select .cse6 (+ 64 c_ssl3_accept_~s.offset)) 0) (<= (select .cse6 (+ 52 c_ssl3_accept_~s.offset)) 8448)))) is different from false [2022-03-20 07:48:17,134 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse10 (select |c_#memory_int| c_ssl3_accept_~s.base)) (.cse6 (+ 92 c_ssl3_accept_~s.offset))) (let ((.cse5 (select |c_#memory_$Pointer$.offset| c_ssl3_accept_~s.base)) (.cse8 (+ 84 c_ssl3_accept_~s.offset)) (.cse9 (select .cse10 .cse6))) (let ((.cse1 (= .cse9 0)) (.cse0 (select .cse5 .cse8))) (and (or (<= c_ssl3_accept_~s.offset (+ 752 .cse0)) .cse1) (forall ((v_arrayElimCell_28 Int) (v_arrayElimCell_27 Int) (v_ArrVal_16335 Int)) (let ((.cse3 (+ 844 v_arrayElimCell_28))) (or (not (= 8640 (let ((.cse4 (+ 52 c_ssl3_accept_~s.offset))) (select (select (let ((.cse2 (store |c_#memory_int| c_ssl3_accept_~s.base (store (select |c_#memory_int| c_ssl3_accept_~s.base) .cse4 8448)))) (store .cse2 v_arrayElimCell_27 (store (select .cse2 v_arrayElimCell_27) .cse3 v_ArrVal_16335))) c_ssl3_accept_~s.base) .cse4)))) (< (select (select |c_#memory_int| v_arrayElimCell_27) .cse3) 8672)))) (or (= (+ (select .cse5 (+ 176 c_ssl3_accept_~s.offset)) 172) .cse6) (not .cse1)) (or (not (= |c_ssl3_accept_#t~mem145| 0)) (let ((.cse7 (= .cse9 |c_ssl3_accept_#t~mem145|))) (and (or .cse7 (= .cse6 (+ 844 .cse0))) (or (= (select (select |c_#memory_$Pointer$.base| c_ssl3_accept_~s.base) .cse8) c_ssl3_accept_~s.base) .cse7)))) (= (select .cse10 (+ 64 c_ssl3_accept_~s.offset)) 0) (<= (select .cse10 (+ 52 c_ssl3_accept_~s.offset)) 8448))))) is different from false [2022-03-20 07:48:19,214 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse7 (select |c_#memory_int| c_ssl3_accept_~s.base)) (.cse5 (+ 92 c_ssl3_accept_~s.offset))) (let ((.cse3 (select .cse7 .cse5))) (and (forall ((v_arrayElimCell_28 Int) (v_arrayElimCell_27 Int) (v_ArrVal_16335 Int)) (let ((.cse1 (+ 844 v_arrayElimCell_28))) (or (not (= 8640 (let ((.cse2 (+ 52 c_ssl3_accept_~s.offset))) (select (select (let ((.cse0 (store |c_#memory_int| c_ssl3_accept_~s.base (store (select |c_#memory_int| c_ssl3_accept_~s.base) .cse2 8448)))) (store .cse0 v_arrayElimCell_27 (store (select .cse0 v_arrayElimCell_27) .cse1 v_ArrVal_16335))) c_ssl3_accept_~s.base) .cse2)))) (< (select (select |c_#memory_int| v_arrayElimCell_27) .cse1) 8672)))) (not (= .cse3 0)) (or (not (= |c_ssl3_accept_#t~mem145| 0)) (let ((.cse6 (+ 84 c_ssl3_accept_~s.offset)) (.cse4 (= .cse3 |c_ssl3_accept_#t~mem145|))) (and (or .cse4 (= .cse5 (+ 844 (select (select |c_#memory_$Pointer$.offset| c_ssl3_accept_~s.base) .cse6)))) (or (= (select (select |c_#memory_$Pointer$.base| c_ssl3_accept_~s.base) .cse6) c_ssl3_accept_~s.base) .cse4)))) (= (select .cse7 (+ 64 c_ssl3_accept_~s.offset)) 0) (<= (select .cse7 (+ 52 c_ssl3_accept_~s.offset)) 8448)))) is different from false [2022-03-20 07:49:01,910 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 101 [2022-03-20 07:49:01,910 WARN L230 Executor]: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2022-03-20 07:49:01,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2022-03-20 07:49:01,913 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 615 GetRequests, 504 SyntacticMatches, 12 SemanticMatches, 98 ConstructedPredicates, 10 IntricatePredicates, 0 DeprecatedPredicates, 2582 ImplicationChecksByTransitivity, 409.6s TimeCoverageRelationStatistics Valid=1026, Invalid=6803, Unknown=221, NotChecked=1850, Total=9900 [2022-03-20 07:49:01,914 INFO L913 BasicCegarLoop]: 464 mSDtfsCounter, 1394 mSDsluCounter, 5909 mSDsCounter, 0 mSdLazyCounter, 5647 mSolverCounterSat, 289 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1394 SdHoareTripleChecker+Valid, 6373 SdHoareTripleChecker+Invalid, 7485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 289 IncrementalHoareTripleChecker+Valid, 5647 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 1547 IncrementalHoareTripleChecker+Unchecked, 17.4s IncrementalHoareTripleChecker+Time [2022-03-20 07:49:01,914 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [1394 Valid, 6373 Invalid, 7485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [289 Valid, 5647 Invalid, 2 Unknown, 1547 Unchecked, 17.4s Time] [2022-03-20 07:49:01,938 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-03-20 07:49:02,114 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58 [2022-03-20 07:49:02,115 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:243) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.checkSat(ManagedScript.java:139) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker.checkImplication(MonolithicImplicationChecker.java:85) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.compare(PredicateUnifier.java:894) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.(PredicateUnifier.java:768) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:345) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicateForConjunction(PredicateUnifier.java:388) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicateForConjunction(PredicateUnifier.java:229) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.getOrConstructPredicate(DeterministicInterpolantAutomaton.java:282) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.constructSuccessorsAndTransitions(DeterministicInterpolantAutomaton.java:304) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:233) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.TotalizeNwa.internalSuccessors(TotalizeNwa.java:213) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ComplementDeterministicNwa.internalSuccessors(ComplementDeterministicNwa.java:121) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:216) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:208) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.addInternalsAndSuccessors(NestedWordAutomatonReachableStates.java:1058) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.(NestedWordAutomatonReachableStates.java:960) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates.(NestedWordAutomatonReachableStates.java:182) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.computeDifference(Difference.java:137) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.(Difference.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.computeAutomataDifference(BasicCegarLoop.java:853) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.refineAbstraction(BasicCegarLoop.java:770) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.refineAbstractionInternal(AbstractCegarLoop.java:470) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:421) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:349) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:331) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:414) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:304) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:264) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:177) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:156) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1465) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:658) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:239) ... 49 more [2022-03-20 07:49:02,118 INFO L158 Benchmark]: Toolchain (without parser) took 769634.86ms. Allocated memory was 205.5MB in the beginning and 268.4MB in the end (delta: 62.9MB). Free memory was 176.2MB in the beginning and 102.8MB in the end (delta: 73.4MB). Peak memory consumption was 136.3MB. Max. memory is 8.0GB. [2022-03-20 07:49:02,118 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 205.5MB. Free memory is still 165.1MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-20 07:49:02,118 INFO L158 Benchmark]: CACSL2BoogieTranslator took 511.49ms. Allocated memory was 205.5MB in the beginning and 268.4MB in the end (delta: 62.9MB). Free memory was 176.2MB in the beginning and 217.5MB in the end (delta: -41.3MB). Peak memory consumption was 22.4MB. Max. memory is 8.0GB. [2022-03-20 07:49:02,118 INFO L158 Benchmark]: Boogie Preprocessor took 94.98ms. Allocated memory is still 268.4MB. Free memory was 217.5MB in the beginning and 209.7MB in the end (delta: 7.8MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2022-03-20 07:49:02,118 INFO L158 Benchmark]: RCFGBuilder took 1296.27ms. Allocated memory is still 268.4MB. Free memory was 209.7MB in the beginning and 202.1MB in the end (delta: 7.6MB). Peak memory consumption was 50.3MB. Max. memory is 8.0GB. [2022-03-20 07:49:02,118 INFO L158 Benchmark]: IcfgTransformer took 51.74ms. Allocated memory is still 268.4MB. Free memory was 202.1MB in the beginning and 196.3MB in the end (delta: 5.8MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2022-03-20 07:49:02,118 INFO L158 Benchmark]: TraceAbstraction took 767662.67ms. Allocated memory is still 268.4MB. Free memory was 195.8MB in the beginning and 102.8MB in the end (delta: 92.9MB). Peak memory consumption was 93.2MB. Max. memory is 8.0GB. [2022-03-20 07:49:02,119 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 205.5MB. Free memory is still 165.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 511.49ms. Allocated memory was 205.5MB in the beginning and 268.4MB in the end (delta: 62.9MB). Free memory was 176.2MB in the beginning and 217.5MB in the end (delta: -41.3MB). Peak memory consumption was 22.4MB. Max. memory is 8.0GB. * Boogie Preprocessor took 94.98ms. Allocated memory is still 268.4MB. Free memory was 217.5MB in the beginning and 209.7MB in the end (delta: 7.8MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * RCFGBuilder took 1296.27ms. Allocated memory is still 268.4MB. Free memory was 209.7MB in the beginning and 202.1MB in the end (delta: 7.6MB). Peak memory consumption was 50.3MB. Max. memory is 8.0GB. * IcfgTransformer took 51.74ms. Allocated memory is still 268.4MB. Free memory was 202.1MB in the beginning and 196.3MB in the end (delta: 5.8MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * TraceAbstraction took 767662.67ms. Allocated memory is still 268.4MB. Free memory was 195.8MB in the beginning and 102.8MB in the end (delta: 92.9MB). Peak memory consumption was 93.2MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:243) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...